Hjem
Nils-Halvdan Morkens bilde

Nils-Halvdan Morken

Professor

Obstetrikk og Gynekologi i MED 9

Masterstudiet i ernæring

2020

Sorbye LM, Cnattingius S, Skjaerven R, Klungsoyr K, Wikström AK, Kvalvik LG, Morken NH, Interpregnancy Weight Change and Recurrence of Gestational Diabetes Mellitus: A Population-Based Cohort Study. BJOG. 2020 Jun 13.

Eide KT, Morken NH, Bærøe K, Tensions and Interplay: A Qualitative Study of Access to Patient-Centered Birth Counseling of Maternal Cesarean Requests in Norway. Midwifery. 2020 May 30

Malmström O, Håberg SE, Morken NH. Probability and outcomes of second pregnancy after HELLP syndrome in the first: a population-based registry study. Acta Obstet Gynecol Scand. 2020 Mar 29.

2019

Danielsson KC, Gilhus NE, Borthen I, Lie RT, Morken NH, Maternal complications in pregnancy and childbirth for women with epilepsy: Time trends in a nationwide cohort. PLoS One. 2019 Nov 25;14(11):e0225334

Pirnat A, DeRoo LA, Skjærven R, Morken NH, Lipid levels after childbirth and association with number of children: A population-based cohort study. PLoS One. 2019 Oct 24;14(10): e0223602.

Jacobsson B, Saltvedt S, Wikström AK, Morken NH, Leijonhufvud Å, Hagberg H. Preterm delivery: an overview on prediction, prevention and treatment. Lakartidningen. 2019 Oct 8;116. Swedish.

Morken NH Victims and addicts of biostatistics. Acta Obstet Gynecol Scand. 2019 Sep;98(9.

Eide KT, Morken NH, Bærøe K, Maternal reasons for requesting planned cesarean section in Norway: a qualitative study. BMC Pregnancy Childbirth. 2019 Mar 29;19(1):102. doi: 10.1186/s12884-019-2250-6.

Magnus MC, Wilcox AJ, Morken NH, Weinberg CR, Håberg SE, Role of maternal age and pregnancy history in risk of miscarriage: prospective register based study. BMJ 2019;364:l869

Pirnat A, DeRoo LA, Skjærven R, Morken NH, Risk of having one lifetime pregnancy and modification by outcome of pregnancy and perinatal loss. Acta Obstet Gynecol Scand. 2019 Jun;98(6):753-760.

Velle-Forbord V, Skråstad RB, Salvesen Ø, Kramer MS, Morken NH, Vanky E, Breastfeeding and long-term maternal metabolic health in the HUNT Study: a longitudinal population-based cohort study. BJOG. 2019 Mar; 126 (4): 526-534

2018

Engjom HM, Morken NH, Høydahl E, Norheim OF, Klungsøyr K, Risk of eclampsia or HELLP-syndrome by institution availability and place of delivery-A population-based cohort study. Pregnancy Hypertension. 2018; 14 :1-8.

Engjom HM, Morken NH, Klungsøyr K. Risiko for peripartum perinatal død ved fødsler i fødestue. Tidsskr Nor Laegeforen. 2018 Sep 3;138 (13).

Pirnat A, DeRoo LA, Skjærven R, Morken NH, Women's prepregnancy lipid levels and number of children: a Norwegian prospective population-based cohort study. BMJ Open. 2018 Jul 9; 8(6):e021188.

Smith LK, Morisaki N, Morken NH, Gissler M, Deb-Rinker P, Rouleau J, Hakansson S, Kramer MR, Kramer MS, An International Comparison of Death Classification at 22 to 25 Weeks' Gestational Age. Pediatrics. 2018 Jul; 142(1).

Sande AK, Torkildsen EA, Sande RK, Morken NH, Maternal allergy as an isolated risk factor for early-onset preeclampsia: An epidemiological study. J Reprod Immunol. 2018 Apr 20;127: 43-47. doi: 10.1016/j.jri.2018.04.004.

Danielsson KC, Borthen I, Gilhus NE, Morken NH, The effect of parity on risk of complications in women with epilepsy: a population based cohort study. Acta Obstet Gynecol Scand. 2018 May 2. doi: 10.1111/aogs.13360.

Danielsson KC, Borthen I, Morken NH, Gilhus NE, Hypertensive pregnancy complications in women with epilepsy and antiepileptic drugs: a population-based cohort study of first pregnancies in Norway. BMJ Open. 2018 Apr 24; 8(4):e020998. doi: 10.1136/bmjopen-2017-020998.

Kesmodel US, Morken NH. Methodological challenges in studies in obstetrics and gynecology. Acta Obstet Gynecol Scand. 2018 Apr; 97(4):369-370. doi: 10.1111/aogs.13317.

Khatibi A, Nybo Andersen AM, Gissler M, Morken NH, Jacobsson B, Obstetric and neonatal outcome in women aged 50 years and up: A collaborative, Nordic population-based study. Eur J Obstet Gynecol Reprod Biol. 2018 May; 224:17-20. doi: 10.1016/j.ejogrb.2018.03.001. Epub 2018 Mar 3.

Malmström O, Morken NH, HELLP syndrome, risk factors in first and second pregnancy: a population-based cohort study. Acta Obstet Gynecol Scand. 2018 Jun; 97(6):709-716. doi: 10.1111/aogs.13322. Epub 2018 Mar 25.

 

2017

Magnus MC, Ghaderi S, Morken NH, Magnus P, Bente Romundstad L, Skjærven R, Wilcox AJ, Eldevik Håberg S, Vanishing twin syndrome among ART singletons and pregnancy outcomes. Hum Reprod. 2017 Nov 1; 32(11):2298-2304.

Rosenberg BE, Morken NH, Intimkirurgi i Norge. Tidsskr Nor Laegeforen. 2017 Aug 10;137(14-15). Norwegian.

Sorbye LM, Skjaerven R, Klungsoyr K, Morken NH, Gestational diabetes mellitus and interpregnancy weight change: A population-based cohort study. PLoS Med. 2017 Aug 1; 14(8):e1002367.

Engjom HM, Morken NH, Klungsøyr K. Reply. Am J Obstet Gynecol. 2017 Oct;217(4):495-496. doi: 10.1016/j.ajog.2017.06.035. Epub 2017 Jul 6.

Engjom HM, Morken NH, Høydahl E, Norheim OF, Klungsøyr K, Increased risk of peripartum perinatal mortality in unplanned births outside institution - a retrospective population-based study. Am J Obstet Gynecol. 2017 Aug; 217(2):210.e1-210.e12.

Morken NH, Halland F, DeRoo LA, AJ Wilcox AJ, R Skjærven R, Offspring birth weight by gestational age and parental cardiovascular mortality: a population-based cohort study. BJOG. 2018 Feb; 125(3):336-341. doi: 10.1111/1471-0528.14522. Epub 2017 Feb 6.

Kvalvik LG, Haug K, Klungsøyr K, Morken NH, DeRoo LA, Skjærven R, Maternal smoking status in successive pregnancies and risk of having a small-for-gestational-age infant. Paediatr Perinat Epidemiol. 2017 Jan; 31(1):21-28. doi: 10.1111/ppe.12333. Epub 2016 Dec 16.

 

2016

Halland F, Morken NH, DeRoo L, Klungsøyr K, Wilcox A, Skjærven R, Long-term mortality in mothers with perinatal losses and risk modification by surviving children and attained education: a population-based cohort study. BMJ Open. 2016 Nov 24; 6(11):e012894. doi: 10.1136/bmjopen-2016-012894. Erratum in: BMJ Open. 2016 Dec 15; 6(12):e012894corr1.

Morken NH, Skjærven R, Richards JL, Kramer MR, Cnattingius S, Johansson S, Gissler M, Dolan SM, Zeitlin J, Kramer MS, for the PREBIC Epidemiology Working Group, Adverse infant outcomes associated with discordant gestational age estimates. Paediatr Perinat Epidemiol. 2016 Nov; 30(6):541-549. doi: 10.1111/ppe.12311. Epub 2016 Aug 23.

Richards JL, Kramer MS,  Deb-Rinker P, Rouleau J, Mortensen L, Gissler M, Morken NH, Skjærven R, Cnattingius S, Johansson S, Delnord M, Dolan SM, Morisaki N, Tough S, Zeitlin J, Kramer MR, Temporal trends in late preterm and early term birth rates in six high-income countries in North America and Europe and association with clinician-initiated obstetric interventions. JAMA. 2016 Jul 26; 316(4):410-9. doi: 10.1001/jama.2016.9635. Erratum in: JAMA. 2016 Oct 18; 316(15):1601.

Morken NH, Jacobsson B, Vaginal progesterone treatment in pregnancy does not prevent premature birth. Tidsskr Nor Laegeforen. 2016 May 24; 136(9):794. Norwegian.

DeRoo L, Skjærven R, Wilcox A, Klungsøyr K, Wikström AK, Morken NH, Cnattingius S. Placental abruption and long-term maternal cardiovascular disease mortality: a population-based registry study in Norway and Sweden. Eur J Epidemiol. 2016 May; 31(5):501-11. doi: 10.1007/s10654-015-0067-9. Epub 2015 Jul 16.

 

2015

Halland F, Morken NH, DeRoo LA, Klungsøyr K, Wilcox AJ, Skjærven R. Association of Women's Reproductive History With Long-term Mortality and Effect of Socioeconomic Factors. Obstet Gynecol. 2015 Dec; 126(6):1181-7. doi: 10.1097/AOG.0000000000001155.

Verner MA, Loccisano AE, Morken NH, Yoon M, Wu H, McDougall R, Maisonet M, Marcus M, Kishi R, Miyashita C, Chen MH, Hsieh WS, Andersen ME, Clewell HJ, Longnecker MP. Associations of Perfluoroalkyl Substances (PFAS) with Lower Birth Weight: An Evaluation of Potential Confounding by Glomerular Filtration Rate Using a Physiologically Based Pharmacokinetic Model (PBPK). Environ Health Perspect. 2015 Dec; 123(12):1317-24. doi: 10.1289/ehp.1408837. Epub 2015 May 22.

Morken NH, Diaz-Garcia C, Reisaeter AV, Foss A, Leivestad T, Geiran O, Hervás D, Brännström M. Obstetric and neonatal outcome of pregnancies fathered by males on immunosuppression after solid organ transplantation. Am J Transplant. 2015 Jun; 15(6):1666-73. doi: 10.1111/ajt.13159. Epub 2015 Apr 13.

Sorbye LM, Klungsoyr K, Samdal O, Owe KM, Morken NH. Pre-pregnant body mass index and recreational physical activity: effects on perinatal mortality in a prospective pregnancy cohort. BJOG. 2015 Sep; 122(10):1322-30. doi: 10.1111/1471-0528.13290. Epub 2015 Feb 3.

Morken NH, Skjaerven R, Wilcox AJ. Ultrasound prediction of perinatal outcome: the unrecognised value of sibling data. BJOG. 2015 Nov; 122 (12):1674-81. doi: 10.1111/1471-0528.13022. Epub 2014 Aug 19

 

2014

Morken NH, Haavaldsen C, Heimstad R, Holdø B, Øian P Postterm pregnancies. Chapter 35 in Norwegian guidelines in obstetrics, 2014. Norwegian.

Morken NH, Travlos GS, Wilson RE, Eggesbø M, Longnecker MP. Maternal glomerular filtration rate in pregnancy and fetal size. PLoS One. 2014 Jul 8; 9(7):e101897. doi: 10.1371/journal.pone.0101897. eCollection 2014. Erratum in: PLoS One. 2015; 10(6):e0130752.

Morken NH, Klungsøyr K, Skjaerven R. Perinatal mortality by gestational week and size at birth in singleton pregnancies at and beyond term: a nationwide population-based cohort study. BMC Pregnancy Childbirth. 2014 May 22; 14:172. doi: 10.1186/1471-2393-14-172.

Engjom HM, Morken NH, Norheim OF, Klungsøyr K. Availability and access in modern obstetric care: a retrospective population-based study. BJOG. 2014 Feb; 121 (3):290-9. doi: 10.1111/1471-0528.12510. Epub 2013 Nov 28.

Morken NH, Källen K, Jacobsson B. Predicting risk of spontaneous preterm delivery in women with a singleton pregnancy. Paediatr Perinat Epidemiol. 2014 Jan; 28(1):11-22. doi: 10.1111/ppe.12087. Epub 2013 Oct 10.

 

2013

Myking S, Boyd HA, Myhre R, Feenstra B, Jugessur A, Devold Pay AS, Ostensen IH, Morken NH, Busch T, Ryckman KK, Geller F, Magnus P, Gjessing HK, Melbye M, Jacobsson B, Murray JC. X-chromosomal maternal and fetal SNPs and the risk of spontaneous preterm delivery in a Danish/Norwegian genome-wide association study. PLoS One. 2013 Apr 16; 8(4):e61781. doi: 10.1371/journal.pone.0061781. Print 2013.

Morken NH, Klungsøyr K, Magnus P, Skjærven R. Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. Acta Obstet Gynecol Scand. 2013 Jul; 92(7): 809-15. doi: 10.1111/aogs.12115. Epub 2013 Mar 19.

 

2012

Alleman BW, Myking S, Ryckman KK, Myhre R, Feingold E, Feenstra B, Geller F, Boyd HA, Shaffer JR, Zhang Q, Begum F, Crosslin D, Doheny K, Pugh E, Pay AS, Ostensen IH, Morken NH, Magnus P, Marazita ML, Jacobsson B, Melbye M, Murray JC; Gene, Environment Association Studies (GENEVA) Consortium; Norwegian Mother and Child Cohort Study (MoBA) Genome-Wide Association Study Group. No observed association for mitochondrial SNPs with preterm delivery and related outcomes. Pediatr Res. 2012 Nov; 72(5):539-44. doi: 10.1038/pr.2012.112. Epub 2012 Aug 17.

Khatibi A, Brantsaeter AL, Sengpiel V, Kacerovsky M, Magnus P, Morken NH, Myhre R, Gunnes N, Jacobsson B. Prepregnancy maternal body mass index and preterm delivery. Am J Obstet Gynecol. 2012 Sep; 207(3):212.e1-7. doi: 10.1016/j.ajog.2012.06.002. Epub 2012 Jun 11.

Morken NH. Preterm birth: new data on a global health priority. Lancet. 2012 Jun 9; 379(9832):2128-30.

Klungsøyr K, Morken NH, Irgens L, Vollset SE, Skjaerven R. Secular trends in the epidemiology of pre-eclampsia throughout 40 years in Norway: prevalence, risk factors and perinatal survival. Paediatr Perinat Epidemiol. 2012 May; 26(3):190-8. doi: 10.1111/j.1365-3016.2012.01260.x. Epub 2012 Feb 10.

 

2011

Myking S, Myhre R, Gjessing HK, Morken NH, Sengpiel V, Williams SM, Ryckman KK, Magnus P, Jacobsson B. Candidate gene analysis of spontaneous preterm delivery: new insights from re-analysis of a case-control study using case-parent triads and control-mother dyads. BMC Med Genet. 2011 Dec 30; 12:174. doi: 10.1186/1471-2350-12-174.

Morken NH, Melve KK, Skjaerven R. Recurrence of prolonged and post-term gestational age across generations: maternal and paternal contribution. BJOG. 2011 Dec; 118 (13):1630-5. doi: 10.1111/j.1471-0528.2011.03154.x. Epub 2011 Oct 10.

Morken NH, Gunnes N, Magnus P, Jacobsson B. Risk of spontaneous preterm delivery in a low-risk population: the impact of maternal febrile episodes, urinary tract infection, pneumonia and ear-nose-throat infections. Eur J Obstet Gynecol Reprod Biol. 2011 Dec; 159(2):310-4. doi: 10.1016/j.ejogrb.2011.08.006. Epub 2011 Oct 1.

Morken NH. Preterm delivery in IVF versus ICSI singleton pregnancies: a national population-based cohort. Eur J Obstet Gynecol Reprod Biol. 2011 Jan; 154 (1):62-6. doi: 10.1016/j.ejogrb.2010.08.025. Epub 2010 Sep 29.

 

2010

Morken NH, Albrechtsen S, Backe B, Iversen OE. Caesarean section does not prevent cerebral palsy in singleton term breech infants. Dev Med Child Neurol. 2010 Jul; 52(7):684-5; author reply 685-6.

Ryckman KK, Morken NH, White MJ, Velez DR, Menon R, Fortunato SJ, Magnus P, Williams SM, Jacobsson B. Maternal and fetal genetic associations of PTGER3 and PON1 with preterm birth. PLoS One. 2010 Feb 3; 5(2):e9040. doi: 10.1371/journal.pone.0009040.

Morken NH. Time to focus on the public health aspects of preterm delivery. Acta Obstet Gynecol Scand. 2010; 89(2):165-7.

 

2009

Jacobsson B, Aaltonen R, Rantakokko-Jalava K, Morken NH, Alanen A. Quantification of Ureaplasma urealyticum DNA in the amniotic fluid from patients in PTL and pPROM and its relation to inflammatory cytokine levels. Acta Obstet Gynecol Scand. 2009; 88 (1):63-70. doi: 10.1080/00016340802572646.

 

2008

Morken NH, Magnus P, Jacobsson B. Subgroups of preterm delivery in the Norwegian Mother and Child Cohort Study. Acta Obstet Gynecol Scand. 2008; 87(12):1374-7. doi: 10.1080/00016340802491508.

Morken NH, Vogel I, Kallen K, Skjaerven R, Langhoff-Roos J, Kesmodel US, Jacobsson B. Reference population for international comparisons and time trend surveillance of preterm delivery proportions in three countries. BMC Womens Health. 2008 Sep 25; 8:16. doi: 10.1186/1472-6874-8-16.

Biggio J, Christiaens I, Katz M, Menon R, Merialdi M, Morken NH, Pennell C, Williams SM; Preterm Birth Genome Project. A call for an international consortium on the genetics of preterm birth. Am J Obstet Gynecol. 2008 Aug; 199(2):95-7.

 

2007

Morken NH, Källen K, Jacobsson B. Outcomes of preterm children according to type of delivery onset: a nationwide population-based study. Paediatr Perinat Epidemiol. 2007 Sep; 21(5):458-64.

Morken NH, Majak B, Kahn JA. Insulin producing primary ovarian carcinoid tumor. Acta Obstet Gynecol Scand. 2007; 86(4):500-1.

Pennell CE, Jacobsson B, Williams SM, Buus RM, Muglia LJ, Dolan SM, Morken NH, Ozcelik H, Lye SJ; PREBIC Genetics Working Group, Relton C. Genetic epidemiologic studies of preterm birth: guidelines for research. Am J Obstet Gynecol. 2007 Feb; 196(2):107-18.

Morken NH, Friberg-Otterstad UM, Kahn JA. Hyperreactio luteinalis, presented as an acute abdomen. Acta Obstet Gynecol Scand. 2007; 86 (1): 104-6.

 

2006

Morken NH, Kahn JA. Placenta accreta and methotrexate treatment. Acta Obstet Gynecol Scand. 2006; 85(2):248-50.

Morken NH, Källen K, Jacobsson B. Fetal growth and onset of delivery: a nationwide population-based study of preterm infants. Am J Obstet Gynecol. 2006 Jul;195(1):154-61

Svenningsen R, Morken NH, Kahn JA. Corticosteroids in the treatment of HELLP-syndrome? Tidsskr Nor Laegeforen. 2006 Sep 7; 126(17):2253-6. Norwegian.

 

2005

Morken NH, Källen K, Hagberg H, Jacobsson B. Preterm birth in Sweden 1973-2001: rate, subgroups, and effect of changing patterns in multiple births, maternal age, and smoking. Acta Obstet Gynecol Scand. 2005 Jun; 84(6):558-65.

 

2003

Morken NH. Cortical blindness and pre-eclampsia. Tidsskr Nor Laegeforen. 2003 Jan 23; 123(2):160-2. Norwegian.

 

2001

Morken NH, Henriksen H. Placenta percreta-two cases and review of the literature. Eur J Obstet Gynecol Reprod Biol. 2001 Dec 10; 100(1):112-5.

  • Vis forfatter(e) (2021). Risk of miscarriage in women with psychiatric disorders. British Journal of Psychiatry. 501-506.
  • Vis forfatter(e) (2021). Risk of miscarriage in women with chronic diseases in Norway: A registry linkage study. PLoS Medicine. 1-14.
  • Vis forfatter(e) (2021). Pregnancy Outcomes in Immigrant Women in Norway.
  • Vis forfatter(e) (2021). Placental Abruption by Maternal Country of Birth: a nationwide population-based study.
  • Vis forfatter(e) (2021). Complications during pregnancy and childbirth in immigrant women giving birth in Norway.
  • Vis forfatter(e) (2020). Tensions and interplay: A qualitative study of access to patient-centered birth counseling of maternal cesarean requests in Norway. . Midwifery.
  • Vis forfatter(e) (2020). Probability and outcomes of second pregnancy after HELLP syndrome in the first: A population-based registry study. Acta Obstetricia et Gynecologica Scandinavica. 1206-1213.
  • Vis forfatter(e) (2020). Placental abruption in immigrant women in Norway: a population-based study. Acta Obstetricia et Gynecologica Scandinavica. 1-8.
  • Vis forfatter(e) (2020). Interpregnancy weight change and recurrence of gestational diabetes mellitus: a population-based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 1608-1616.
  • Vis forfatter(e) (2019). Role of maternal age and pregnancy history in risk of miscarriage: prospective register based study. The BMJ. 8 sider.
  • Vis forfatter(e) (2019). Risk of having one lifetime pregnancy and modification by outcome of pregnancy and perinatal loss. Acta Obstetricia et Gynecologica Scandinavica. 753-760.
  • Vis forfatter(e) (2019). Maternal weight, weight change and perinatal outcomes: Can physical activity and gestational weight gain modify the risk?
  • Vis forfatter(e) (2019). Maternal reasons for requesting planned cesarean section in Norway: A qualitative study. BMC Pregnancy and Childbirth. 1-10.
  • Vis forfatter(e) (2019). Maternal complications in pregnancy and childbirth for women with epilepsy: time trends in a nationwide cohort. PLOS ONE. 1-14.
  • Vis forfatter(e) (2019). Lipid levels after childbirth and association with number of children: A population-based cohort study. PLOS ONE. 1-16.
  • Vis forfatter(e) (2018). Women's prepregnancy lipid levels and number of children: a Norwegian prospective population-based cohort study. BMJ Open. 9 sider.
  • Vis forfatter(e) (2018). The effect of parity on risk of complications in pregnant women with epilepsy: a population-based cohort study. Acta Obstetricia et Gynecologica Scandinavica. 1006-1014.
  • Vis forfatter(e) (2018). Risk of eclampsia or HELLP-syndrome by institution availability and place of delivery - A population-based cohort study. Pregnancy Hypertension. 1-8.
  • Vis forfatter(e) (2018). Risiko for peripartum perinatal død ved fødsler i fødestue. Tidsskrift for Den norske legeforening. 1213-1213.
  • Vis forfatter(e) (2018). Offspring birthweight by gestational age and parental cardiovascular mortality: a population-based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 336-341.
  • Vis forfatter(e) (2018). Obstetric care in Norway - the role of institution availability and place of delivery for maternal and perinatal outcomes. Population-based retrospective cohort studies.
  • Vis forfatter(e) (2018). Obstetric and neonatal outcome in women aged 50 years and up: A collaborative, Nordic population-based study. European Journal of Obstetrics, Gynecology, and Reproductive Biology. 17-20.
  • Vis forfatter(e) (2018). Methodological challenges in studies in obstetrics and gynecology. Acta Obstetricia et Gynecologica Scandinavica. 369-370.
  • Vis forfatter(e) (2018). Maternal allergy as an isolated risk factor for early-onset preeclampsia: An epidemiological study. Journal of Reproductive Immunology. 43-47.
  • Vis forfatter(e) (2018). Hypertensive pregnancy complications in women with epilepsy and antiepileptic drugs; a population-based cohort study of first pregnancies in Norway. BMJ Open. 8 sider.
  • Vis forfatter(e) (2018). HELLP syndrome, risk factors in first and second pregnancy: a population-based cohort study. Acta Obstetricia et Gynecologica Scandinavica. 709-716.
  • Vis forfatter(e) (2018). Breastfeeding and long‐term maternal metabolic health in the HUNT Study: a longitudinal population‐based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 526-534.
  • Vis forfatter(e) (2018). Breastfeeding and long-term metabolic health: consequence or reverse causality?
  • Vis forfatter(e) (2018). An international comparison of death classification at 22 to 25 weeks' gestational age. Pediatrics.
  • Vis forfatter(e) (2017). Vanishing twin syndrome among ART singletons and pregnancy outcomes. Human Reproduction. 2298-2304.
  • Vis forfatter(e) (2017). Reply. American Journal of Obstetrics and Gynecology. 495-496.
  • Vis forfatter(e) (2017). Increased risk of peripartum perinatal mortality in unplanned births outside an institution: a retrospective population-based study. American Journal of Obstetrics and Gynecology. 210.e1-210.e12.
  • Vis forfatter(e) (2017). Gestational diabetes mellitus and interpregnancy weight change: A population-based cohort study. PLoS Medicine. 19 sider.
  • Vis forfatter(e) (2016). Vaginal progesteronbehandling i graviditet forebygger ikke for tidlig fødsel. Tidsskrift for Den norske legeforening. 794-794.
  • Vis forfatter(e) (2016). Temporal trends in late preterm and early term birthrates in 6 high-income countries in North America and Europe and association with clinician-initiated obstetric interventions. Journal of the American Medical Association (JAMA). 410-419.
  • Vis forfatter(e) (2016). Maternal smoking status in successive pregnancies and risk of having a small for gestational age infant. Paediatric and Perinatal Epidemiology. 21-28.
  • Vis forfatter(e) (2016). Long-term mortality in mothers with perinatal losses and risk modification by surviving children and attained education: A population-based cohort study. BMJ Open. 8 sider.
  • Vis forfatter(e) (2016). Adverse infant outcomes associated with discordant gestational age estimates. Paediatric and Perinatal Epidemiology. 541-549.
  • Vis forfatter(e) (2015). Ultrasound prediction of perinatal outcome: the unrecognised value of sibling data. BJOG: An International Journal of Obstetrics and Gynaecology. 1674-1681.
  • Vis forfatter(e) (2015). Pre-pregnant body mass index and recreational physical activity: effects on perinatal mortality in a prospective pregnancy cohort. BJOG: An International Journal of Obstetrics and Gynaecology. 1322-1330.
  • Vis forfatter(e) (2015). Placental abruption and long-term maternal cardiovascular disease mortality: a population-based registry study in Norway and Sweden. European Journal of Epidemiology (EJE). 501-511.
  • Vis forfatter(e) (2015). Obstetric and neonatal outcome of pregnancies fathered by males on immunosuppression after solid organ transplantation. American Journal of Transplantation. 1666-1673.
  • Vis forfatter(e) (2015). Association of Women's Reproductive History with Long-term Mortality and Effect of Socioeconomic Factors. Obstetrics and Gynecology. 1181-1187.
  • Vis forfatter(e) (2015). Assfociations of perfluoroalkyl substances (PFAS) with lower birth weight: An evaluation of potential confounding by glomerular filtration rate using a physiologically based pharmacokinetic model (PBPK). Environmental Health Perspectives. 1317-1324.
  • Vis forfatter(e) (2014). Predicting risk of spontaneous preterm delivery in women with a singleton pregnancy. Paediatric and Perinatal Epidemiology. 11-22.
  • Vis forfatter(e) (2014). Perinatal mortality by gestational week and size at birth in singleton pregnancies at and beyond term: A nationwide population-based cohort study. BMC Pregnancy and Childbirth. 9 sider.
  • Vis forfatter(e) (2014). Maternal glomerular filtration rate in pregnancy and fetal size. PLOS ONE.
  • Vis forfatter(e) (2014). Availability and access in modern obstetric care: a retrospective population-based study. BJOG: An International Journal of Obstetrics and Gynaecology. 290-299.
  • Vis forfatter(e) (2013). X-chromosomal maternal and fetal SNPs and the risk of spontaneous preterm delivery in a Danish/Norwegian genome-wide association study. PLOS ONE. 11 sider.
  • Vis forfatter(e) (2013). Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. Acta Obstetricia et Gynecologica Scandinavica. 809-815.
  • Vis forfatter(e) (2013). Maternal solid organ transplantation and pregnancy outcome; a national population-based cohort study. American Journal of Obstetrics and Gynecology. S304-S304.
  • Vis forfatter(e) (2013). Availability and access in modern obstetric care: a retrospective population-based cohort study. BJOG: An International Journal of Obstetrics and Gynaecology. 412-413.
  • Vis forfatter(e) (2012). What is the price of proactive management in post term pregnancies? Acta Obstetricia et Gynecologica Scandinavica. 14-14.
  • Vis forfatter(e) (2012). Secular trends in the epidemiology of pre-eclampsia throughout 40 years in Norway: prevalence, risk factors and perinatal survival. Paediatric and Perinatal Epidemiology. 190-198.
  • Vis forfatter(e) (2012). Recurrence of Prolonged and Postterm Gestational Age Across Generations: Maternal and Paternal Contribution EDITORIAL COMMENT. Obstetrical and Gynecological Survey. 207-208.
  • Vis forfatter(e) (2012). Preterm birth: new data on a global health priority. The Lancet. 2128-2130.
  • Vis forfatter(e) (2012). Prepregnancy maternal body mass index and preterm delivery. American Journal of Obstetrics and Gynecology. 212.e1-212.e7.
  • Vis forfatter(e) (2012). Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. American Journal of Obstetrics and Gynecology. S76-S76.
  • Vis forfatter(e) (2012). Pre-pregnancy maternal body mass index, physical activity, nutrition, and preterm delivery. American Journal of Obstetrics and Gynecology. S47-S48.
  • Vis forfatter(e) (2012). No observed association for mitochondrial SNPs with preterm delivery and related outcomes. Pediatric Research. 539-544.
  • Vis forfatter(e) (2011). Risk of spontaneous preterm delivery in a low-risk population: the impact of maternal febrile episodes, urinary tract infection, pneumonia and ear-nose-throat infections. European Journal of Obstetrics, Gynecology, and Reproductive Biology. 310-314.
  • Vis forfatter(e) (2011). Recurrence of prolonged and post-term gestational age across generations: maternal and paternal contribution. BJOG: An International Journal of Obstetrics and Gynaecology. 1630-1635.
  • Vis forfatter(e) (2011). Preterm delivery in IVF versus ICSI singleton pregnancies: a national population-based cohort. European Journal of Obstetrics, Gynecology, and Reproductive Biology. 62-66.
  • Vis forfatter(e) (2011). Candidate gene analysis of spontaneous preterm delivery: New insights from re-analysis of a case-control study using case-parent triads and control-mother dyads. BMC Medical Genetics.
  • Vis forfatter(e) (2010). Time to focus on the public health aspects of preterm delivery. Acta Obstetricia et Gynecologica Scandinavica. 165-167.
  • Vis forfatter(e) (2010). Maternal and fetal genetic associations of PTGER3 and PON1 with preterm birth. PLOS ONE.
  • Vis forfatter(e) (2010). Caesarean section does not prevent cerebral palsy in singleton term breech infants. Developmental Medicine & Child Neurology. 684-685.
  • Vis forfatter(e) (2009). Quantification of Ureaplasma urealyticum DNA in the amniotic fluid from patients in PTL and pPROM and its relation to inflammatory cytokine levels. Acta Obstetricia et Gynecologica Scandinavica. 63-70.
  • Vis forfatter(e) (2008). Subgroups of preterm delivery in the Norwegian Mother and Child Cohort Study. Acta Obstetricia et Gynecologica Scandinavica. 1374-1377.
  • Vis forfatter(e) (2008). Reference population for international comparisons and time trend surveillance of preterm delivery proportions in three countries. BMC Women's Health.
  • Vis forfatter(e) (2006). Placenta accreta and methotrexate treatment. Acta Obstetricia et Gynecologica Scandinavica. 248-250.
  • Vis forfatter(e) (2006). Kortikosteroider i behandlingen av HELLP-syndrom? Tidsskrift for Den norske legeforening. 2253-2256.

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