Rolv Terje Lie

Professor

Department of Global Public Health and Primary Care

E-mailrolv.lie@uib.no
Phone+47 55 58 85 33+47 930 87 160
Visitor Address
Alrek helseklynge, blokk D, Årstadveien 17

5009 Bergen
Postal Address
Postboks 7804

5020 Bergen

Rolv Terje Lie is a professor of medical statistics with a particular interest in reproductive health epidemiology and genetics. Lie is also a senior researcher at Centre for Fertility and Health at the Norwegian Institute of Public Health.

Studies of the genetic epidemiology of birth defects is one of his main areas of interest. Pioneering registry-based studies have been published in NEJM, JAMA and BMJ. A population-based case-control study of oral clefts including DNA-samples from family triads in Norway in collaboration with Dr. Allen Wilcox at NIEHS has so far resulted in more than 40 scientific papers.

Another key topic of research is the complex epidemiology and genetics of pre-eclampsia. Lie has published several papers in major journals that have provided new insights.

Perinatal risk factors for neurodevelopmental disorders including CP is a major area of research. Papers have been published in the highest-ranking medical journals in collaboration with Professor Dag Moster.

Lie has a strong engagement for global reproductive health research. With funding from the NUFU-programme, he helped start a birth registry at the KCMC-hospital in Tanzania, a project that resulted in a high number of publications, 4 PhD-degrees for collaborators from Tanzania and a research platform for the hospital.

Rolv Terje Lie is an honorary member of the Norwegian Epidemiological Society and he received the Falch-prize for excellent leadership in medical research in 2010

Lie teaches a course for students in medicine and dentistry in basic statistical methods with a particular focus on the design and analysis of randomized trials. He reveived a prize for the development of this course from the Medical Faculty in 2020.

Over the years he has developed several applied statistics courses for PhD-students including a course on the analysis of correlated data.

He also teaches in a course on genetic epidemiology and genome-wide association analyses.

Show author(s) (2023). Time trends in perinatal outcomes among HIV-positive pregnant women in Northern Tanzania: A registry-based study. PLOS ONE. 18 pages.
Show author(s) (2023). Rare variants with large effects provide functional insights into the pathology of migraine subtypes, with and without aura. Nature Genetics.
Show author(s) (2023). Prevalence of neural tube defects among pregnant women in Addis Ababa: a community-based study using prenatal ultrasound examination. Child's Nervous System.
Show author(s) (2023). Maternal antiretroviral treatment for HIV infection and risk of small-for-gestational-age birth: A systematic review and meta-analysis of protease inhibitor-based treatment and timing of treatment. International Journal of Antimicrobial Agents.
Show author(s) (2023). Genetic effects on the timing of parturition and links to fetal birth weight. Nature Genetics. 559-567.
Show author(s) (2023). Deficit of homozygosity among 1.52 million individuals and genetic causes of recessive lethality. Nature Communications.
Show author(s) (2023). Corrigendum to “Sleep and physical activity from before conception to the end of pregnancy in healthy women: A longitudinal actigraphy study” [Sleep Med 83 (2021) 89–98, (S1389945721002525), (10.1016/j.sleep.2021.04.028)]. Sleep Medicine. 160.
Show author(s) (2023). Author Correction: Genetic effects on the timing of parturition and links to fetal birth weight (Nature Genetics, (2023), 55, 4, (559-567), 10.1038/s41588-023-01343-9). Nature Genetics.

Show author(s) (2022). Effect of maternal sleep on embryonic development. Scientific Reports. 11 pages.
Show author(s) (2022). An examination of mediation by DNA methylation on birthweight differences induced by assisted reproductive technologies. Clinical Epigenetics. 13 pages.

Show author(s) (2021). Wavelet Screening identifies regions highly enriched for differentially methylated loci for orofacial clefts. NAR Genomics and Bioinformatics. 1-16.
Show author(s) (2021). Variation in use of Caesarean section in Norway: An application of spatio-temporal Gaussian random fields. Scandinavian Journal of Public Health. 8 pages.
Show author(s) (2021). Sleep and physical activity from before conception to the end of pregnancy in healthy women: a longitudinal actigraphy study. Sleep Medicine. 89-98.
Show author(s) (2021). Maternal Chronic Conditions and Risk of Cerebral Palsy in Offspring: A National Cohort Study. Pediatrics. 10 pages.
Show author(s) (2021). Maternal Chronic Conditions and Risk of Cerebral Palsy in Offspring: A National Cohort Study. Pediatrics.
Show author(s) (2021). Isolated oral clefts and school grades: population-based cohort study from Norway. BMJ Open. 7 pages.
Show author(s) (2021). Invited Commentary: Ionizing Radiation and Future Reproductive Health-Old Cohorts Still Deserve Attention. American Journal of Epidemiology. 2334-2336.

Show author(s) (2020). Parental education and the risk of cerebral palsy for children: an evaluation of causality. Developmental Medicine & Child Neurology. 1176-1181.
Show author(s) (2020). Heritability curves: A local measure of heritability in family models. Statistics in Medicine. 1357-1382.
Show author(s) (2020). Gene-methylation interactions: Discovering region-wise DNA methylation levels that modify SNP-associated disease risk. Clinical Epigenetics. 18 pages.
Show author(s) (2020). Design efficiency in genetic association studies. Statistics in Medicine. 1292-1310.

Show author(s) (2019). Meta-analysis of epigenome-wide association studies in neonates reveals widespread differential DNA methylation associated with birthweight. Nature Communications. 1-11.
Show author(s) (2019). Maternal complications in pregnancy and childbirth for women with epilepsy: time trends in a nationwide cohort. PLOS ONE. 1-14.
Show author(s) (2019). Hvordan bør rekrutteringen til folkehelseundersøkelsene gjennomføres? Tidsskrift for Den norske legeforening. 1462-1467.
Show author(s) (2019). Haplin power analysis: a software module for power and sample size calculations in genetic association analyses of family triads and unrelated controls. BMC Bioinformatics. 11 pages.
Show author(s) (2019). Genome-wide association study reveals dynamic role of genetic variation in infant and early childhood growth. Nature Communications. 1-10.
Show author(s) (2019). A genome-wide scan of cleft lip triads identifies parent-of-origin interaction effects between ANK3 and maternal smoking, and between ARHGEF10 and alcohol consumption. F1000 Research. 28 pages.
Show author(s) (2019). A comparison of DNA methylation in newborn blood samples from infants with and without orofacial clefts. Clinical Epigenetics. 8 pages.

Show author(s) (2018). The association between pre pregnancy body mass index and risk of preeclampsia: a registry based study from Tanzania. BMC Pregnancy and Childbirth. 8 pages.
Show author(s) (2018). Parental socioeconomic status and risk of cerebral palsy in the child: evidence from two Nordic population-based cohorts. International Journal of Epidemiology. 1298-1306.
Show author(s) (2018). Analysis of parent-of-origin effects on the X chromosome in asian and european orofacial cleft triads identifies associations with DMD, FGF13, EGFL6, and additional loci at Xp22.2. Frontiers in Genetics. 17 pages.
Show author(s) (2018). A genome-wide search for gene-environment effects in isolated cleft lip with or without cleft palate triads points to an interaction between maternal periconceptional vitamin use and variants in ESRRG. Frontiers in Genetics. 16 pages.

Show author(s) (2017). Time trends in management of HIV-positive pregnant women in Northern Tanzania: A registry-based study. PLOS ONE. 15 pages.
Show author(s) (2017). Suicide and violent deaths in survivors of cancer in childhood, adolescence and young adulthood-a national cohort study. International Journal of Cancer. 575-580.
Show author(s) (2017). Prenatal exposure to Chernobyl fallout in Norway: neurological and developmental outcomes in a 25-year follow-up. European Journal of Epidemiology (EJE). 1065-1073.
Show author(s) (2017). Parent-of-origin-environment interactions in case-parent triads with or without independent controls. Annals of Human Genetics. 60-73.
Show author(s) (2017). Maternal underweight and obesity and risk of orofacial clefts in a large international consortium of population-based studies. International Journal of Epidemiology. 190-199.
Show author(s) (2017). Maternal BMI at the start of pregnancy and offspring epigenome-wide DNA methylation: findings from the pregnancy and childhood epigenetics (PACE) consortium. Human Molecular Genetics. 4067-4085.
Show author(s) (2017). Interaction between smoking and body mass index and risk of oral clefts. Annals of Epidemiology. 103-107.e2.
Show author(s) (2017). HIV among pregnant women in Tanzania; are we meeting national guidelines?
Show author(s) (2017). Genome-wide analysis of parent-of-origin interaction effects with environmental exposure (PoOxE): An application to European and Asian cleft palate trios. PLOS ONE. 19 pages.
Show author(s) (2017). Cohort profile: Pregnancy and childhood epigenetics (PACE) consortium. International Journal of Epidemiology. 22-23u.
Show author(s) (2017). A new approach to chromosome-wide analysis of X-linked markers identifies new associations in Asian and European case-parent triads of orofacial clefts. PLOS ONE. 23 pages.
Show author(s) (2017). A Population-Based Study of Effects of Genetic Loci on Orofacial Clefts. Journal of Dental Research. 1322-1329.

Show author(s) (2016). Socio-economic status and reproduction among adults born with an oral cleft: A population-based cohort study in Norway. PLOS ONE. 11 pages.
Show author(s) (2016). Reproduction and marriage among male survivors of cancer in childhood, adolescence and young adulthood: a national cohort study. British Journal of Cancer. 348-356.
Show author(s) (2016). Prevention of HIV transmission in Tanzania.
Show author(s) (2016). Passive smoke exposure as a risk factor for oral clefts-a large international population-based study. American Journal of Epidemiology. 834-841.
Show author(s) (2016). Neurodevelopmental disorders or early death in siblings of children with cerebral palsy. Pediatrics.
Show author(s) (2016). Maternal prepregnancy BMI and risk of cerebral palsy in offspring. Pediatrics. 9 pages.
Show author(s) (2016). Maternal alcohol binge-drinking in the first trimester and the risk of orofacial clefts in offspring: a large population-based pooling study. European Journal of Epidemiology (EJE). 1021-1034.
Show author(s) (2016). Maternal age at delivery is associated with an epigenetic signature in both newborns and adults. PLOS ONE.
Show author(s) (2016). Management of HIV positive pregnant women in Tanzania; are we meeting national guidelines?
Show author(s) (2016). Intake of caffeinated soft drinks before and during pregnancy, but not total caffeine intake, is associated with increased cerebral palsy risk in the norwegian mother and child cohort study. Journal of Nutrition. 1701-1706.
Show author(s) (2016). Health status among adults born with an oral cleft in Norway. JAMA pediatrics. 1063-1070.
Show author(s) (2016). Economic independence in survivors of cancer diagnosed at a young age: A Norwegian national cohort study. Cancer. 3873-3882.
Show author(s) (2016). A multi-ethnic genome-wide association study identifies novel loci for non-syndromic cleft lip with or without cleft palate on 2p 24.2, 17q23 and 19q13. Human Molecular Genetics. 2862-2872.
Show author(s) (2016). A genome-wide association study of nonsyndromic cleft palate identifies an etiologic missense variant in GRHL3. American Journal of Human Genetics. 744-754.

Show author(s) (2015). Parental age and the risk of isolated cleft lip: a registry-based study. Annals of Epidemiology. 942-947.
Show author(s) (2015). MINNEORD: Tor Bjerkedal. Tidsskrift for Den norske legeforening. 1 pages.
Show author(s) (2015). Haplin — a powerful tool for studying gene-environment interactions.
Show author(s) (2015). HIV testing among pregnant women in Tanzania.
Show author(s) (2015). Child apolipoprotein E gene variants and risk of cerebral palsy: Estimation from case-parent triads. European journal of paediatric neurology. 286-291.

Show author(s) (2014). Risk of cerebral palsy in relation to pregnancy disorders and preterm birth: a national cohort study. Developmental Medicine & Child Neurology. 779-785.
Show author(s) (2014). Identification of DNA methylation changes in newborns related to maternal smoking during pregnancy. Environmental Health Perspectives. 1147-1153.
Show author(s) (2014). First-trimester nonsystemic corticosteroid use and the risk of oral clefts in Norway. Annals of Epidemiology. 635-640.
Show author(s) (2014). Familial risk of cerebral palsy: Population based cohort study. BMJ. British Medical Journal. 8 pages.
Show author(s) (2014). Associations of maternal atopic diseases with adverse pregnancy outcomes: A national cohort study. Paediatric and Perinatal Epidemiology. 489-497.
Show author(s) (2014). Associations of Respiratory Symptoms and Lung Function with Measured Carbon Monoxide Concentrations among Nonsmoking Women Exposed to Household Air Pollution: The RESPIRE Trial, Guatemala. Environmental Health Perspectives.

Show author(s) (2013). X-linked markers in the Duchenne muscular dystrophy gene associated with oral clefts. European Journal of Oral Sciences. 63-68.
Show author(s) (2013). The recurrence risk of preeclampsia in subsequent pregnancies in northern Tanzania: a registry-based prospective cohort study. American Journal of Obstetrics and Gynecology. S273-S273.
Show author(s) (2013). The impact of cigarette quitting during pregnancy on other prenatal health behaviors. Review of Economics of the Household. 211-233.
Show author(s) (2013). The association of preterm birth with severe asthma and atopic dermatitis: a national cohort study. Pediatric Allergy and Immunology. 782-787.
Show author(s) (2013). Recurrence of preterm birth and perinatal mortality in northern Tanzania: registry-based cohort study. Tropical medicine & international health. 962-967.
Show author(s) (2013). Recurrence of preterm birth and perinatal mortality in Northern Tanzania: registry-based cohort study. American Journal of Obstetrics and Gynecology. S221-S222.
Show author(s) (2013). Recurrence of perinatal death in Northern Tanzania: a registry based cohort study. BMC Pregnancy and Childbirth. 9 pages.
Show author(s) (2013). Recurrence of Preeclampsia in Northern Tanzania: A Registry-Based Cohort Study. PLOS ONE. 9 pages.
Show author(s) (2013). Erratum to: Cancer in childhood, adolescence, and young adults: a population-based study of changes in risk of cancer death during four decades in Norway. Cancer Causes and Control. 2253-2256.

Show author(s) (2012). X-Linked Genes and Risk of Orofacial Clefts: Evidence from Two Population-Based Studies in Scandinavia. PLOS ONE.
Show author(s) (2012). Using offspring-parent triads to study complex traits : a tutorial based on orofacial clefts. Norsk Epidemiologi. 251-267.
Show author(s) (2012). Smoking and body weight: Evidence using genetic instruments. Economics and Human Biology. 113-126.
Show author(s) (2012). Genome wide study of maternal and parent-of-origin effects on the etiology of orofacial clefts. American Journal of Medical Genetics. Part A. 784-794.
Show author(s) (2012). Factors associated with prenatal folic acid and iron supplementation among 21,889 pregnant women in Northern Tanzania: A cross-sectional hospital-based study. BMC Public Health. 10 pages.
Show author(s) (2012). Causes of perinatal death at a tertiary care hospital in Northern Tanzania 2000-2010: a registry based study. BMC Pregnancy and Childbirth. 9 pages.
Show author(s) (2012). Cause-specific neonatal mortality in a neonatal care unit in Northern Tanzania: a registry based cohort study. BMC Pediatrics. 10 pages.
Show author(s) (2012). Cardiovascular mortality after pre-eclampsia in one child mothers: prospective, population based cohort study. BMJ. British Medical Journal. 10 pages.
Show author(s) (2012). Cancer in childhood, adolescence, and young adults: a population-based study of changes in risk of cancer death during four decades in Norway. Cancer Causes and Control. 1297-1305.
Show author(s) (2012). Assessing the impact of nicotine dependence genes on the risk of facial clefts: An example of the use of national registry and biobank data. Norsk Epidemiologi. 241-250.
Show author(s) (2012). Application of a Novel Hybrid Study Design to Explore Gene-Environment Interactions in Orofacial Clefts. Annals of Human Genetics. 221-236.

Show author(s) (2011). Transfer of newborns to neonatal care unit: a registry based study in Northern Tanzania. Tropical medicine & international health. 273-274.
Show author(s) (2011). Transfer of newborns to neonatal care unit: a registry based study in Northern Tanzania. BMC Pregnancy and Childbirth.
Show author(s) (2011). Rapid genotyping of the human renin (REN) gene by the LightCycler (R) instrument: Identification of unexpected nucleotide substitutions within the selected hybridization probe area. Disease Markers. 243-249.
Show author(s) (2011). Genes as instrument for studying risk behavior effects: an application to maternal smoking and orofacial clefts. Health Services & Outcomes Research Methodology. 54-78.
Show author(s) (2011). Fetal genetic risk of isolated cleft lip only versus isolated cleft lip and palate: a subphenotype analysis using two population-based studies of orofacial clefts in Scandinavia. Birth Defects Research Part A: Clinical and Molecular Teratology. 85-92.
Show author(s) (2011). FTO, type 2 diabetes, and weight gain throughout adult life A meta-analysis of 41,504 subjects from the Scandinavian HUNT, MDC, and MPP studies. Diabetes. 1637-1644.
Show author(s) (2011). Evidence for Gene-Environment Interaction in a Genome Wide Study of Nonsyndromic Cleft Palate. Genetic Epidemiology. 469-478.
Show author(s) (2011). Cause specific neonatal mortality in a neonatal care unit in northern Tanzania: a registry based cohort study. Tropical medicine & international health. 302-302.
Show author(s) (2011). Birthweight, preterm birth and perinatal mortality: a comparison of black babies in Tanzania and the USA. Acta Obstetricia et Gynecologica Scandinavica. 1100-1106.
Show author(s) (2011). Association between inhibited binding of folic acid to folate receptor alpha in maternal serum and folate-related birth defects in Norway. Human Reproduction. 2232-2238.
Show author(s) (2011). A genetic instrumental variables analysis of the effects of prenatal smoking on birth weight: evidence from two samples. Biodemography and Social Biology. 3-32.

Show author(s) (2010). Recording of maternal deaths in an East African university hospital. Acta Obstetricia et Gynecologica Scandinavica. 789-793.
Show author(s) (2010). Rapid genotyping of the human renin (REN) gene by the LightCycler® instrument: Identification of unexpected nucleotide substitutions within the selected hybridization probe area. Disease Markers. 243-249.
Show author(s) (2010). Maternal genes and facial clefts in offspring: a comprehensive search for genetic associations in two population-based cleft studies from Scandinavia. PLOS ONE.
Show author(s) (2010). Maternal angiotensinogen (AGT) haplotypes, fetal renin (REN) haplotypes and risk of preeclampsia; estimation of gene-gene interaction from family-triad data. BMC Medical Genetics. 7 pages.
Show author(s) (2010). Maternal alcohol consumption, alcohol metabolism genes, and the risk of oral clefts: A population-based case-control study in Norway, 1996-2001. American Journal of Epidemiology. 924-931.
Show author(s) (2010). Immediate treatment versus sonographic surveillance for mild hip dysplasia in newborns. Pediatrics. E9-E16.
Show author(s) (2010). Cerebral Palsy among term and postterm births. Journal of the American Medical Association (JAMA). 976-982.
Show author(s) (2010). A genome-wide association study of cleft lip with and without cleft palate identifies risk variants near MAFB and ABCA4. Nature Genetics. 525-U76.

Show author(s) (2009). Oral facial clefts and gene polymorphisms in metabolism of folate/one-carbon and vitamin A: a pathway-wide association study. Genetic Epidemiology. 247-255.
Show author(s) (2009). Maternal consumption of coffee and caffeine-containing beverages and oral clefts: A population-based case-control study in Norway. American Journal of Epidemiology. 1216-1222.
Show author(s) (2009). Identification of Microdeletions in Candidate Genes for Cleft Lip and/or Palate. Birth Defects Research Part A: Clinical and Molecular Teratology. 42-51.
Show author(s) (2009). Genetic determinants of facial clefting: analysis of 357 candidate genes using two national cleft studies from Scandinavia. PLOS ONE.
Show author(s) (2009). Genetic Distance and Population Structure Analysis of Parents Drawn from a Family Based Genome Wide Association Study of Oral Clefts. Genetic Epidemiology. 782-782.
Show author(s) (2009). Fetal down syndrome and the risk of maternal breast cancer. Epidemiology. 584-589.
Show author(s) (2009). FOXE1 association with both isolated cleft lip with or without cleft palate, and isolated cleft palate. Human Molecular Genetics. 4879-4896.
Show author(s) (2009). Effect of reducing indoor air pollution on women’s respiratory symptoms and lung function: The RESPIRE Randomized Trial, Guatemala. American Journal of Epidemiology. 211-220.
Show author(s) (2009). Effect of Personal Exposure to Indoor Air Pollution from Solid Fuel on Lung Symptoms and Function in Women: An Exposure-Response Analysis from the Guatemala Woodstove Randomised Control Trial. Epidemiology. S206-S206.
Show author(s) (2009). Down Syndrome registration in the Medical Birth Registry of Norway: Validity and time trends. Birth Defects Research Part A: Clinical and Molecular Teratology. 238-238.

Show author(s) (2008). Sociodemographic characteristics and perinatal mortality among singletons in North East Tanzania: a registry-based study. Journal of Epidemiology and Community Health. 960-965.
Show author(s) (2008). Risk factors for maternal death in the highlands of rural northern Tanzania: a case-control. BMC Public Health.
Show author(s) (2008). Registration of Down's syndrome in the medical birth registry of Norway; validity and time trends. European Journal of Neurology. 348-349.
Show author(s) (2008). Registration of Down syndrome in the Medical Birth Registry of Norway: Validity and time trends. Acta Obstetricia et Gynecologica Scandinavica. 824-830.
Show author(s) (2008). Prevalence of major anatomic variations in oral clefts. Plastic and Reconstructive Surgery. 587-595.
Show author(s) (2008). Maternal smoking and oral clefts - The role of detoxification pathway genes. Epidemiology. 606-615.
Show author(s) (2008). Maternal dietary intake of vitamin A and risk of orofacial clefts: A population-based case-control study in Norway. American Journal of Epidemiology. 1164-1170.
Show author(s) (2008). Maternal HIV status and pregnancy outcomes in northeastern Tanzania: a registry-based study. BJOG: An International Journal of Obstetrics and Gynaecology. 616-624.
Show author(s) (2008). Long-term medical and social consequences of preterm birth. New England Journal of Medicine. 262-273.
Show author(s) (2008). Hvor ”farlig” er premature fødsler? Aftenposten (morgenutg. : trykt utg.).
Show author(s) (2008). Hvor "farlig" er det å bli født for tidlig? Prematur Posten. 19-20.
Show author(s) (2008). Genetic variants in IRF6 and the risk of facial clefts: Single-marker and haplotype-based analyses in a population-based case-control study of facial clefts in Norway. Genetic Epidemiology. 413-424.
Show author(s) (2008). Folate and one-carbon metabolism gene polymorphisms and their associations with oral facial clefts. American Journal of Medical Genetics. 440-449.
Show author(s) (2008). First-trimester maternal alcohol consumption and the risk of infant oral clefts in Norway: A population-based case-control study. American Journal of Epidemiology. 638-646.
Show author(s) (2008). Familial risk of oral clefts by morphological type and severity: population based cohort study of first degree relatives. BMJ. British Medical Journal. 432-434.
Show author(s) (2008). Familial patterns of preterm delivery: Maternal and fetal contributions. American Journal of Epidemiology. 474-479.
Show author(s) (2008). Disruption of an AP-2 alpha binding site in an IRF6 enhancer is associated with cleft lip. Nature Genetics. 1341-1347.
Show author(s) (2008). Cancer risk in children with birth defects and in their families: A population based cohort study of 5.2 million children from Norway and Sweden. Cancer Epidemiology, Biomarkers and Prevention. 500-506.
Show author(s) (2008). Birthweight and perinatal mortality among singletons and twins in north-eastern Tanzania. Scandinavian Journal of Public Health. 761-768.
Show author(s) (2008). Biometrical modelling in genetics: are complex traits too complex? Statistical Methods in Medical Research. 75-96.

Show author(s) (2007). The heritability of preterm delivery: Maternal and fetal contributions. American Journal of Epidemiology. S21-S21.
Show author(s) (2007). Studier av årsaker til Medfødte misdannelser basert på Medisinsk fødselsregister. Norsk Epidemiologi. 141-146.
Show author(s) (2007). Prevalence of duplications and deletions of the 22q11 DiGeorge syndrome region in a population-based sample of infants with cleft palate. American Journal of Medical Genetics. 129-134.
Show author(s) (2007). Preeclampsia and long-term maternal mortality. American Journal of Epidemiology. S27-S27.
Show author(s) (2007). Parent's occupation and isolated orofacial clefts in Norway: A population-based case-control study. Annals of Epidemiology. 763-771.
Show author(s) (2007). Maternal alcohol consumption and the risk of oral clefts in Norway. A population-based case-control study. American Journal of Epidemiology. S1-S1.
Show author(s) (2007). Male infertility: Intracytoplasmic sperm injection (ICSI) using surgically retrieved sperm from the testis or the epididymis. 7/2007. 7/2007. .
Show author(s) (2007). Lung function and symptoms among indigenous Mayan women exposed to high levels of indoor air pollution. The International Journal of Tuberculosis and Lung Disease. 1372-1379.
Show author(s) (2007). Intergenerational exchange and perinatal risks: a note on interpretation of generational recurrence risks. Paediatric and Perinatal Epidemiology. 13-18.
Show author(s) (2007). Impact of an improved stove on women's lung health in a rural wood-using community. RESPIRE Guatemala.
Show author(s) (2007). Haplotype relative risk estimation in epidemiological studies; New methodology applied to a study of smoking, relevant detoxification genes and oral clefts in Norway. American Journal of Epidemiology. S142-S142.
Show author(s) (2007). Haplotype relative risk estimation in epidemiological studies; New methodology applied to a study of smoking, relevant detoxification genes and oral clefts in Norway. American Journal of Epidemiology. S142.
Show author(s) (2007). Fødsler i førti år. Norsk Epidemiologi. 93-94.
Show author(s) (2007). Fødsler i førti år. Norsk Epidemiologi. 93-94.
Show author(s) (2007). Fødsler i førti år. Norsk Epidemiologi. 93-94.
Show author(s) (2007). Folsyretilskudd og risiko for leppe- og ganespalte. Sykepleien Forskning. 112-117.
Show author(s) (2007). Folic acid supplements and risk of facial clefts: national population based case-control study. BMJ. British Medical Journal. 464-467.
Show author(s) (2007). Folate metabolism genes and the risk of orofacial clefts. American Journal of Epidemiology. S118-S118.
Show author(s) (2007). Eye discomfort, headache and back pain among Mayan Guatemalan women taking part in a randomised stove intervention trial. Journal of Epidemiology and Community Health. 74-79.
Show author(s) (2007). Epidemiology of cleft palate alone and cleft palate with accompanying defects. European Journal of Epidemiology (EJE). 389-395.
Show author(s) (2007). Completeness of registration of oral clefts in a medical birth registry: a population-based study. Acta Obstetricia et Gynecologica Scandinavica. 1453-1457.
Show author(s) (2007). A medical birth registry at Kilimanjaro Christian Medical Centre, Tanzania. East African Journal of Public Health. 1-4.
Show author(s) (2007). A medical birth registry at Kilimanjaro Christian Medical Centre. East African Journal of Public Health. 1-4.

Show author(s) (2006). Paternal occupational exposure to radiofrequency electromagnetic fields and risk of adverse pregnancy outcome. European Journal of Epidemiology (EJE). 529-535.
Show author(s) (2006). Maternal and paternal influences on length of pregnancy. Obstetrics and Gynecology. 880-885.
Show author(s) (2006). Jordmorstyrte fødestuer. 16. 16. .
Show author(s) (2006). Grandparents' age and the risk of Down's syndrome in Norway. Acta Obstetricia et Gynecologica Scandinavica. 236-240.
Show author(s) (2006). Case-parent triads: Estimating single- and double-dose effects of fetal and maternal disease gene haplotypes. Annals of Human Genetics. 382-396.

Show author(s) (2005). Sense and sensibility in delivery care. Tidsskrift for Den norske legeforening. 2818-2820.
Show author(s) (2005). Recurrence of pre-eclampsia across generations: exploring fetal and maternal genetic components in a population based cohort. BMJ. British Medical Journal.
Show author(s) (2005). Recurrence of pre-eclampsia across generations: exploring fetal and maternal genetic components in a popluation based cohort. BMJ. British Medical Journal. 877-880.
Show author(s) (2005). Maternal occupation and oral clefts in Norway. American Journal of Epidemiology. 1 pages.
Show author(s) (2005). Gender, age, and ethnicity in HIV vaccine-related research and clinical trials - Report from a WHO-UNAIDS consultation, 26-28 August 2004. Lausanne, Switzerland. AIDS (London). W7-W28.
Show author(s) (2005). Follow-up studies of children with birth defects in the Medical Birth Registry of Norway; A review. Norsk Epidemiologi. 21-24.
Show author(s) (2005). Follow-up studies of children with birth defects in the Medical Birth Registry of Norway: A review. Norsk Epidemiologi. 21-24.
Show author(s) (2005). Cleft lip and palate versus cleft lip only: are they distinct defects? American Journal of Epidemiology. 448-453.
Show author(s) (2005). Cleft lip and palate versus cleft lip only: Are they distinct defects? American Journal of Epidemiology. 448-453.
Show author(s) (2005). Case-parent triads: Estimating single- and double-dose effects of fetal and maternal disease gene haplotypes. Annals of Human Genetics. 1-15.
Show author(s) (2005). Birth defects in children conceived by ICSI compared with children conceived by other IVF-methods; a meta-analysis. International Journal of Epidemiology. 696-701.
Show author(s) (2005). Birth defects in children conceived by ICSI compared with children conceived by other IVF-methods; a meta-analysis. International Journal of Epidemiology. 696-701.
Show author(s) (2005). An international perspective on anencephaly and spina bifida: Prevalences by the turn of the century. 16 pages.

Show author(s) (2004). Variations in the risk of disability pension in Norway 1970-99 - A gender-specific age-period-cohort analysis. Scandinavian Journal of Public Health. 340-348.
Show author(s) (2004). Ultrasound estimates of gestational age among perinatally demised: a population-based study. Acta Obstetricia et Gynecologica Scandinavica. 149-154.
Show author(s) (2004). Risk of selected birth defects by maternal residence close to power lines during pregnancy. Occupational and Environmental Medicine. 174-176.
Show author(s) (2004). Paternal age and the risk of birth defects in Norway. Annals of Epidemiology. 566-570.
Show author(s) (2004). On a study of familial risk of incontinence. Epidemiology. 508-508.
Show author(s) (2004). Maternal and fetal variants of genetic thrombophilias and the risk of preeclampsia. Epidemiology. 317-322.
Show author(s) (2004). Increasing risk of gastroschisis in Norway: an age-period-cohort analysis. American Journal of Epidemiology. 358-363.
Show author(s) (2004). Increasing risk of gastroschisis in Norway: an age-period-cohort analysis. American Journal of Epidemiology. 358-363.
Show author(s) (2004). Familial risk of urinary incontinence in women: population based cross sectional study. BMJ. British Medical Journal. 889-891.
Show author(s) (2004). Examination of IMPA1 and IMPA2 genes in manic-depressive patients: association between IMPA2 promoter polymorphisms and bipolar disorder. Molecular Psychiatry. 621-629.
Show author(s) (2004). Birth defects and age effects.

Show author(s) (2003). Variants of Developmental Genes (TGFA, TGFB3, and MSX1) and Their Associations With Orofacial Clefts: A Case-Parent Triad Analysis. Genetic Epidemiology. 230-239.
Show author(s) (2003). Sostrup statement on low birthweight. International Journal of Epidemiology. 884-885.
Show author(s) (2003). Retraction of paper on maternal diabetes. BMJ. British Medical Journal. 929-929.
Show author(s) (2003). Residence Near Power Lines and the Risk of Birth Defects. Epidemiology. 95-98.
Show author(s) (2003). Perinatal mortality in northern rural Tanzania. Journal of Health, Population and Nutrition. 8-17.
Show author(s) (2003). No association between preeclampsia or cesarean section and incidence of type 1 diabetes among children: a large, population-based cohort study. Pediatric Research. 487-490.
Show author(s) (2003). No association between preeclampsia or cesarean section and incidence of type 1 diabetes among children: a large, population-based cohort study. Pediatric Research. 487-90.
Show author(s) (2003). No association between preeclampsia or Cesarean section and incidence of type 1 diabetes among children: A large, population-based cohort study. Pediatric Research. 487-490.
Show author(s) (2003). Exploring the effects of methylenetetrahydrofolate reductase gene variants C677T and A1298C on the risk of orofacial clefts in 261 Norwegian case-parents triads. American Journal of Epidemiology. 1083-1091.
Show author(s) (2003). Examination of IMPA1- and IMPA2 genes in manic-depressive patients: Association between IMPA2 promoter polymorphisms and bipolar disorder. Molecular Psychiatry. Epub-23Dec2003.
Show author(s) (2003). Cleft Palate, Transforming Growth Factor Alpha Gene Variants, and Maternal Exposures: Assessing Gene-Environment Interactions in Case-Parent Triads. Genetic Epidemiology. 367-374.
Show author(s) (2003). Avoidable stillbirths and neonatal deaths in rural Tanzania. British Journal of Obstetrics and Gynaecology. 616-623.

Show author(s) (2002). Variations in risk for disability pension in Norway 1970-1999: period or cohort effects?
Show author(s) (2002). Variants of developmental genes (TGFA,TGFB3 and MSX1) and their assiciation with facial clefts - A case-parent triad analysis.
Show author(s) (2002). The interval between pregnancies and the risk of preeclampsia. New England Journal of Medicine. 33-8.
Show author(s) (2002). Skeletal measurements among infants who die during the perinatal period: new population-based reference. Pediatric Radiology. 667-73.
Show author(s) (2002). Risk of birth defects by parental occupational exposure to 50 Hz electromagnetic fields: a population based study. Occupational and Environmental Medicine. 92-7.
Show author(s) (2002). Ossification sequence among infants who die during the perinatal period. Radiology. 240-244.
Show author(s) (2002). Maternal mortality in northern rural Tanzania; assessing the completeness of various information sources. Acta Obstetricia et Gynecologica Scandinavica. 301-307.
Show author(s) (2002). Maternal deaths in rural northern Tanzania.
Show author(s) (2002). Joint association of Apgar scores and early neonatal symptoms with minor disabilities at school age. Archives of Disease in Childhood: Fetal and Neonatal Edition. F16-F21.
Show author(s) (2002). How do we best detect toxic effects of drugs taken during pregnancy? A EuroMap paper. Drug Safety. 21-32.
Show author(s) (2002). How do we best detect toxic effects of drugs taken during pregnancy? Drug Safety. 21-32.
Show author(s) (2002). Down's syndrome and paternal age in Norway. Paediatric and Perinatal Epidemiology. 314-9.
Show author(s) (2002). Causes and characteristics of maternal deaths in rural northern Tanzania. Acta Obstetricia et Gynecologica Scandinavica. 1101-1109.
Show author(s) (2002). Barn født etter intracytoplasmisk spermieinjeksjon. .
Show author(s) (2002). Barn født etter intracytoplasmatisk spermieinjeksjon. SMM-rapport 3/2002. SMM-rapport 3/2002. .
Show author(s) (2002). Barn født etter intracytoplasmatisk spermieinjeksjon.
Show author(s) (2002). Anemia in pregnancy in rural Tanzania; associations with micro-nutritients status and infections. European Journal of Clinical Nutrition. 192-199.

Show author(s) (2001). The association of Apgar score with subsequent death and cerebral palsy; A population based study in term infants. Journal of Pediatrics. 798-803.
Show author(s) (2001). The association of Apgar score with subsequent death and cerebral palsy: A population-based study in term infants. Journal of Pediatrics. 798-803.
Show author(s) (2001). Survival and Reproduction among Males with Birth Defects and the Risk of Recurrence in their Children. Journal of the American Medical Association (JAMA). 755-760.
Show author(s) (2001). Skeletal measurements among infants who die during the perinatal period: a new population-based reference.
Show author(s) (2001). Perintal factors and incidence of chilhood onset type 1 diabetes: a large population based cohort study.
Show author(s) (2001). Perinatal factors and incidence of childhood-onset type 1 diabetes in a large poulation based cohort study.
Show author(s) (2001). Outcome of pregnancy in diabetic women - authors reply (letter). BMJ. British Medical Journal. 615.
Show author(s) (2001). Original communication. Homocysteine and methylmalonic acid levels in pregnant Nepali women. Should cobalamin supplementation be considered? European Journal of Clinical Nutrition. 856-864.
Show author(s) (2001). Neonatal mortality rates in communities with small maternity units compared whith those having larger maternity units. British Journal of Obstetrics and Gynaecology. 904-909.
Show author(s) (2001). Maternal hematological status and risk of low birth weight and preterm delivery in Nepal. Acta Obstetricia et Gynecologica Scandinavica. 402-408.
Show author(s) (2001). Maternal and paternal age at delivery, birth order, and risk of childhood onset type 1 diabetes: population based cohort study. BMJ. British Medical Journal. 369-371.
Show author(s) (2001). Maternal and paternal age at delivery, birth order, and risk of childhood onset type 1 diabetes: a population based cohort study. BMJ. British Medical Journal. 369-371.
Show author(s) (2001). Maternal age at delivery, birth order, and risk of childhood-onset type 1 diabetes: a population based cohort study.
Show author(s) (2001). Long term mortality of mothers and fathers after pre-eclampsia: population based cohort study. BMJ. British Medical Journal. 1213-1217.
Show author(s) (2001). Long term mortality of mothers and fathers after pre-eclampsia: population based cohort study. BMJ. British Medical Journal. 1213-1217.
Show author(s) (2001). Homocysteine and methylmalonic acid levels in pregnant Nepali women. Should cobalamin supplementation be considered? European Journal of Clinical Nutrition. 856-864.
Show author(s) (2001). Head circumference at birth and childhood-onset type 1 diabetes.
Show author(s) (2001). Birth weight and childhood onset type 1 diabetes: population based cohort study. BMJ. British Medical Journal. 889-892.
Show author(s) (2001). Birth weight and childhood onset type 1 diabetes: population based cohort study. BMJ. British Medical Journal. 889-892.
Show author(s) (2001). Birth interval as a risk factor for preeclampsia: implications for the observed effects of parity and paternity.
Show author(s) (2001). Anemia in pregnancy in the highlands of Tanzania. Acta Obstetricia et Gynecologica Scandinavica. 18-26.

Show author(s) (2000). The prevalence of anemia in pregnant Nepali women - a study in Katmandu. Acta Obstetricia et Gynecologica Scandinavica. 341-349.
Show author(s) (2000). The prevalence of anemia in pregnant Nepali women - a study in Kathmandu. Acta Obstetricia et Gynecologica Scandinavica. 341-349.
Show author(s) (2000). The diagnosis of urinary tract infections among pregnant women in rural Tanzania; prevalences and correspondence between different diagnostic methods. Acta Obstetricia et Gynecologica Scandinavica. 729-736.
Show author(s) (2000). The Norwegian Childhood Diabetes Study Group. Birth weight and risk of childhood type 1 diabetes: a population based cohort study.
Show author(s) (2000). Seasonal variation in risk of anemia among pregnant Nepali women. International Journal of Gynecology & Obstetrics. 215-222.
Show author(s) (2000). Registry based perinatal research. Acta Obstetricia et Gynecologica Scandinavica. 433-434.
Show author(s) (2000). Registry based perinatal research. Acta Obstetricia et Gynecologica Scandinavica. 433-434.
Show author(s) (2000). Outcome of pregnancy in diabetic women in northeast England and in Norway, 1994-7. BMJ. British Medical Journal. 730-731.
Show author(s) (2000). Outcome of pregnancy in diabetic women in northeast England and in Norway, 1994-7. BMJ. British Medical Journal. 730-731.
Show author(s) (2000). Invited commentary: intersecting perinatal mortality curves by gestational age - are appearances deceiving? American Journal of Epidemiology. 1117-1119.
Show author(s) (2000). Estimates of maternal mortality by the sisterhood method in rural northern Tanzania: a household sample and an antenatal clinic sample. British Journal of Obstetrics and Gynaecology. 1290-1297.
Show author(s) (2000). Birth weigth and risk of childhood type 1 diabetes: a population based cohort study.
Show author(s) (2000). Association between birth weight and the risk of childhood type 1 diabetes in a population based cohort study.
Show author(s) (2000). Association between birth weight and the risk of childhood type 1 diabetes in a nationwide cohort study.
Show author(s) (2000). Assessing quality of obstetric care for low-risk deliveries; methodological problems in the use of population based mortality data. Acta Obstetricia et Gynecologica Scandinavica. 478-484.
Show author(s) (2000). Anemia in pregnancy: possible causes and risk factors in Nepali women. European Journal of Clinical Nutrition. 3-8.

Show author(s) (1999). Relation between size of delivery unit and neonatal death in low risk deliveries: population based study. Archives of Disease in Childhood. F221-F224.
Show author(s) (1999). Relation between size of delivery unit and neonatal death in low risk deliveries: population based study. Archives of Disease in Childhood. 221-224.
Show author(s) (1999). Neonatal mortality in communities using small vs. communities using large maternity units for regular births.
Show author(s) (1999). Consanguinity and recurrence risk of stillbirth and infant death. American Journal of Public Health. 517-523.
Show author(s) (1999). Consanguinity and recurrence risk of birth defects: a population-based study. American Journal of Public Health. 423-428.
Show author(s) (1999). Causes of death in patients with peptic ulcer perforation: a long-term follow-up study. Scandinavian Journal of Gastroenterology. 18-24.
Show author(s) (1999). Allelic variants of candidate genes TGFA, TGFB3, and MSX1 and orofacial clefting in Norway: A case-parent triad approach.
Show author(s) (1999). Allelic variants of candidate genes TGFA, TGFB3 and MSX1 and orofacial clefting in Norway: A case-parent triad approach.
Show author(s) (1999). A population-based study of survival and childbearing among female subjects with birth defects and the risk of recurrence in their children. New England Journal of Medicine. 1057-1062.

Show author(s) (1998). Women with birth defects: Survival, fertility and offspring recurrence risk.
Show author(s) (1998). Relationship between size of delivery unit and neonatal death in low-risk deliveries: population based study. Archives of Disease in Childhood. 221-224.
Show author(s) (1998). Recurrence of birth defects through generations. Evidence for environmental effects?
Show author(s) (1998). Intervju om KNM-Kvikk saken.
Show author(s) (1998). Innslag om egen forskning (Preeklampsi).
Show author(s) (1998). Influence of consanguinity and maternal education on risk of stillbirth and infant death in Norway, 1967-1993. American Journal of Epidemiology. 452-459.
Show author(s) (1998). Influence of consanguinity and maternal education on risk of still birth and infant death in Norway 1967-1993. American Journal of Epidemiology. 452-8.
Show author(s) (1998). Influence of consanguinity and maternal education on risk of still birth and infant death in Norway 1967-1993. American Journal of Epidemiology. 452-8.
Show author(s) (1998). Genetic characterization of a cluster of Down�s syndrome babies among a cohort of mothers i Norway.
Show author(s) (1998). Fetal and maternal contributions to the risk of pre-eclampsia: population based study. BMJ. British Medical Journal. 1343-7.
Show author(s) (1998). Fetal and maternal contributions to risk of pre-eclampsia: population based study. BMJ. British Medical Journal. 1343-1347.
Show author(s) (1998). Fetal and maternal contributions to risk of pre-eclampsia: population based study. BMJ. British Medical Journal. 1343-1347.
Show author(s) (1998). Expected survival compared with survival of peptic ulcer patients. Statistics in Medicine. 1189-1199.
Show author(s) (1998). Expected survival and survival of peptic ulcer patients. Statistics in Medicine. 1189-1199.
Show author(s) (1998). Distinguishing the effects of maternal and offspring genes through studies of case-parent triads. American Journal of Epidemiology. 893-901.
Show author(s) (1998). Distinguishing maternal and fetal contributions to birth weight using half-sib data.
Show author(s) (1998). Deltagelse i paneldebatt, KNM-Kvikk saken.
Show author(s) (1998). Clubfoot in offspring of servicemen in the Royal Norwegian Navy. Teratology.
Show author(s) (1998). Clubfoot in offspring of servicemen in the Royal Norwegian Navy. Teratology. 34.
Show author(s) (1998). Artikkel om egen forskning. Legemidler og samfunn.
Show author(s) (1998). Artikkel om egen forskning. Dagbladet.
Show author(s) (1998). A log-Linear Approach to the Case-Parent-Triad Data: Assessing Effects of Disease Genes That Act Either Directly or through Maternal Effects and Th May Be Subject to Parental Imprinting. American Journal of Human Genetics. 969-978.

Show author(s) (1997). Sammenheng mellom fødestedets størrelse og risiko for neonatal mortalitet ved lavrisikofødsler.
Show author(s) (1997). Sammenheng mellom fødestedets størrelse og risiko for neonatal mortalitet ved lavrisikofødsler.
Show author(s) (1997). Sammenheng mellom fødestedets størrelse og risiko for neonatal mortalitet ved lavrisikofødsler.
Show author(s) (1997). Parental Consanguinity and Recurrence of Stillbirth and Infant Death in Siblings.
Show author(s) (1997). Parental Consanguinity and Recurrence of Stillbirth and Infant Death in Siblings.
Show author(s) (1997). Parental Consanguinity and Recurrence of Stillbirth and Infant Death in Siblings.
Show author(s) (1997). Føtalt og maternelt bidrag til risiko for preeklampsi.
Show author(s) (1997). Føtalt og maternelt bidrag til risiko for preeklampsi.
Show author(s) (1997). Føtalt og maternelt bidrag til risiko for preeklampsi.
Show author(s) (1997). Distinguishing the effects of maternal and offspring genes through the studies of "case-parent triads".
Show author(s) (1997). Distinguishing the effects of maternal and offspring genes through the studies of "case-parent triads".
Show author(s) (1997). Distinguishing the effects of maternal and offspring genes through the studies of "case-parent triads".
Show author(s) (1997). Clubfoot in offspring of the servicemen in the Royal Norwagian Navy.

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Fields of competence

Perinatal epidemiology