- nils-halvdan.morken@uib.no
- Visitor address
-
Glasblokkene blokk 1 Haukelandsbakken 15
5021 Bergen - Room: 5152
- Postal address
-
P.O. Box 7804NO-5020 BergenNorway
Publications
2025
- Linn Marie Sørbye; Kari Klungsøyr; Nils-Halvdan Morken et al. (2025). Pre-pregnancy body mass index and risk of gestational diabetes mellitus by maternal country of birth: a registry-based study.. (external link)
- Elise Amanda Aspenes Janson; Berit Gjendem Solemdal; Nils-Halvdan Morken et al. (2025). Periodontal status hos gravide kvinner. (external link)
- Mari Landås Warp; Karoline Hansen Skåra; Thea Karoline Walstad Grindstad et al. (2025). The functional ovarian anatomy of 492 women aged 18–22 years: a population-based study in Norway. (external link)
- Chloe Sage Wyatt; Rolv Skjaerven; Lars Johan Vatten et al. (2025). Hypertensive Disorders of Pregnancy, Preterm Delivery, and Infant Size: Which Mothers Have Highest Cardiovascular Disease Mortality?. (external link)
- Maria Christine Magnus; Yunsung Lee; Ellen Øen Carlsen et al. (2025). Correction: Parental epigenetic age acceleration and risk of adverse birth outcomes: the Norwegian mother, father and child cohort study. (external link)
- Torill Alise Rotevatn; Nina Høy-Petersen; Lema Hussaini et al. (2025). Utilization of antenatal care among immigrant women in Norway: a nationwide register-based cohort study. (external link)
- Linn Marie Sørbye; Kari Klungsøyr; Nils-Halvdan Morken et al. (2025). Pre-pregnancy body mass index and risk of gestational diabetes mellitus by country of birth: A registry-based study.. (external link)
- Merete Salveson Engeset; Linn Marie Sørbye; Nils-Halvdan Morken et al. (2025). Physical and cognitive performance by gestational age in young men and women: A national population-based study. (external link)
- Anders Einum; Roy Miodini Nilsen; Quaker E. Harmon et al. (2025). Timing of progesterone treatment to prevent preterm birth in pregnancies with a short cervix: A population-based historical cohort study. (external link)
- Mari Landås Warp; Thea Karoline Walstad Grindstad; Karoline Hansen Skåra et al. (2025). Maternal time interval between menarche and childbirth is associated with daughter's age at menarche. (external link)
2011
- Nils-Halvdan Morken; Nina Gunnes; Per Magnus et al. (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. (external link)
- Solveig Myking; Ronny Myhre; Håkon Gjessing et al. (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. (external link)
- Nils-halvdan Morken (2011). Preterm delivery in IVF versus ICSI singleton pregnancies: a national population-based cohort. (external link)
- Nils-Halvdan Morken; Kari Klungsøyr Melve; Rolv Skjaerven (2011). Recurrence of prolonged and post-term gestational age across generations: maternal and paternal contribution. (external link)
2019
- Aleksandra Pirnat; Lisa deRoo; Rolv Skjaerven et al. (2019). Lipid levels after childbirth and association with number of children: A population-based cohort study. (external link)
- Kim Christian Danielsson; Nils Erik Gilhus; Ingrid Borthen et al. (2019). Maternal complications in pregnancy and childbirth for women with epilepsy: time trends in a nationwide cohort. (external link)
- Maria Christine Magnus; Allen James Wilcox; Nils-Halvdan Morken et al. (2019). Role of maternal age and pregnancy history in risk of miscarriage: prospective register based study. (external link)
- Linn Marie Sørbye; Nils-Halvdan Morken; Kari Klungsøyr (2019). Maternal weight, weight change and perinatal outcomes: Can physical activity and gestational weight gain modify the risk?. (external link)
- Aleksandra Pirnat; Lisa deRoo; Rolv Skjaerven et al. (2019). Risk of having one lifetime pregnancy and modification by outcome of pregnancy and perinatal loss. (external link)
- Kristiane Tislevoll Eide; Nils-Halvdan Morken; Kristine Bærøe (2019). Maternal reasons for requesting planned cesarean section in Norway: A qualitative study. (external link)
- Nils-Halvdan Morken (2019). Victims and addicts of biostatistics. (external link)
2020
- Karolina Sofia Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2020). Placental abruption in immigrant women in Norway: a population-based study. (external link)
- Kristiane Tislevoll Eide; Nils-Halvdan Morken; Kristine Bærøe (2020). Tensions and interplay: A qualitative study of access to patient-centered birth counseling of maternal cesarean requests in Norway.. (external link)
- Ola Malmström; Siri Eldevik Håberg; Nils-Halvdan Morken (2020). Probability and outcomes of second pregnancy after HELLP syndrome in the first: A population-based registry study. (external link)
- Linn Marie Sørbye; Sven Cnattingius; Rolv Skjærven et al. (2020). Interpregnancy weight change and recurrence of gestational diabetes mellitus: a population-based cohort study. (external link)
2013
- Hilde Marie Engjom; Nils-Halvdan Morken; Ole Frithjof Norheim et al. (2013). Availability and access in modern obstetric care: a retrospective population-based cohort study. (external link)
- Nils-Halvdan Morken; Cesar Diaz-Garcia; Mats Brännström (2013). Maternal solid organ transplantation and pregnancy outcome; a national population-based cohort study. (external link)
- Craig E. Pennell; Felipe Vadillo-Ortega; David M. Olson et al. (2013). Preterm Birth Genome Project (PGP) - Validation of resources for preterm birth genome-wide studies. (external link)
- Nils-Halvdan Morken; Kari Klungsøyr Melve; Per Magnus et al. (2013). Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. (external link)
- Solveig Myking; Heather A Boyd; Ronny Myhre et al. (2013). X-chromosomal maternal and fetal SNPs and the risk of spontaneous preterm delivery in a Danish/Norwegian genome-wide association study. (external link)
2012
- Brandon W Alleman; Solveig Myking; Kelli K Ryckman et al. (2012). No observed association for mitochondrial SNPs with preterm delivery and related outcomes. (external link)
- Ali Khatibi; Verena Sengpiel; Marian Kacerovsky et al. (2012). Pre-pregnancy maternal body mass index, physical activity, nutrition, and preterm delivery. (external link)
- Nils-Halvdan Morken (2012). Preterm birth: new data on a global health priority. (external link)
- Kari Klungsøyr Melve; Nils-Halvdan Morken; Lorentz M. Irgens et al. (2012). Secular trends in the epidemiology of pre-eclampsia throughout 40 years in Norway: prevalence, risk factors and perinatal survival. (external link)
- Nils-Halvdan Morken; Kari Klungsøyr Melve; Rolv Skjaerven (2012). Recurrence of Prolonged and Postterm Gestational Age Across Generations: Maternal and Paternal Contribution EDITORIAL COMMENT. (external link)
- Nils-Halfdan Morken; Per Magnus; Rolv Skjaerven (2012). Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery. (external link)
- Nils-Halvdan Morken (2012). What is the price of proactive management in post term pregnancies?. (external link)
- Ali Khatibi; Anne Lise Brantsæter; Verena Sengpiel et al. (2012). Prepregnancy maternal body mass index and preterm delivery. (external link)
2022
- Camilla Haavaldsen; Nils-Halvdan Morken; Ola Didrik Saugstad et al. (2022). Is the increasing prevalence of labor induction accompanied by changes in pregnancy outcomes? An observational study of all singleton births at gestational weeks 37–42 in Norway during 1999–2019. (external link)
- Tone Engen; Katrine Mari Owe; Julie Horn et al. (2022). Preconception leisure-time physical activity and family history of stroke and myocardial infarction associate with preterm delivery: findings from a Norwegian cohort. (external link)
- Karolina Sofia Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2022). Rsik of Recurrent Preeclampsia by Maternal Region of Birth: A Nationwide Population-based Study. (external link)
- Prativa Basnet; Rolv Skjaerven; Linn Marie Sørbye et al. (2022). Long-term cardiovascular mortality in women with twin pregnancies by lifetime reproductive history. (external link)
- Yeneabeba Sima; Rolv Skjaerven; Liv Grimstvedt Kvalvik et al. (2022). Cesarean delivery in Norwegian nulliparous women with singleton cephalic term births, 1967–2020: a population-based study. (external link)
- Anne Kvie Sande; Erik Andreas Torkildsen; Ragnar Sande et al. (2022). Use of antihistamines before or during pregnancy and risk of early-onset pre-eclampsia in allergic women: a population-based cohort study. (external link)
- Mari Haaland Sagstad; Nils-Halvdan Morken; Agnethe Lund et al. (2022). Quantitative User Data From a Chatbot Developed for Women With Gestational Diabetes Mellitus: Observational Study. (external link)
2006
2008
- Nils-Halvdan Morken; Ida Vogel; Karin Kallen et al. (2008). Reference population for international comparisons and time trend surveillance of preterm delivery proportions in three countries. (external link)
- Nils-Halvdan Morken; Per Magnus; Bo Jacobsson (2008). Subgroups of preterm delivery in the Norwegian Mother and Child Cohort Study. (external link)
2023
- Prativa Basnet; Rolv Skjaerven; Quaker E. Harmon et al. (2023). Risk of adverse pregnancy outcomes in twin- and singleton-born women: An inter-generational cohort study. (external link)
- Svein Rasmussen; Ellen Øen Carlsen; Lorentz Linde et al. (2023). Paternal and maternal birthweight and offspring risk of macrosomia at term gestations: A nationwide population study. (external link)
- Yeneabeba Tilahun Sima; Rolv Skjaerven; Liv Grimstvedt Kvalvik et al. (2023). Birth Weight in Consecutive Pregnancies and Maternal Cardiovascular Disease Mortality Among Spontaneous and Iatrogenic Term Births: A Population-Based Cohort Study. (external link)
- Benedikte Gjerde Vågenes; Siren Tveitnes; Nils-Halvdan Morken et al. (2023). Forekomst av spontan preterm fødsel i Norge mellom 1967-2020 – En deskriptiv populasjonbasert studie. (external link)
- Yeneabeba Tilahun Sima; Maria Christine Magnus; Liv Grimstvedt Kvalvik et al. (2023). The relationship between cesarean delivery and fecundability: a population-based cohort study. (external link)
- Prativa Basnet; Rolv Skjaerven; Quaker E. Harmon et al. (2023). Birthweight of the subsequent singleton pregnancy following a first twin or singleton pregnancy. (external link)
- Anders Einum; Linn Marie Sørbye; Roy Miodini Nilsen et al. (2023). Unveiling sex bias and adverse neonatal outcomes in ultrasound estimation of gestational age: A population-based cohort study. (external link)
- Karolina Sofia Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2023). Risk of Subsequent Preeclampsia by Maternal Country of Birth: A Norwegian Population-Based Study. (external link)
- Anne Kvie Sande; Ingvild Dalen; Erik Andreas Torkildsen et al. (2023). Pregestational maternal risk factors for preterm and term preeclampsia: A population-based cohort study. (external link)
- Linn Marie Sørbye; Nils-Halvdan Morken; Ruth Marie Haug et al. (2023). Forekomst av indusert preterm fødsel – en populasjonsbasert registerstudie. (external link)
- Karolina Sofia Mæland; Roy Miodini Nilsen; Nils-Halvdan Morken et al. (2023). Migration-related risk factors and perinatal outcomes: A national population-based study of immigrant and non-immigrant women in Norway. (external link)
- Nils-Halvdan Morken (2023). Wrapping up eight years of editing in a healthy medical journal. (external link)
- Abdu Kedir Seid; Nils-Halvdan Morken; Kari Klungsøyr et al. (2023). Pregnancy complications in last pregnancy and mothers’ long-term cardiovascular mortality: does the relation differ from that of complications in first pregnancy? A population-based study. (external link)
2015
- Nils-Halvdan Morken; Rolv Skjaerven; Allen J. Wilcox (2015). Ultrasound prediction of perinatal outcome: the unrecognised value of sibling data. (external link)
- Frode Halland; Nils-Halvdan Morken; Lisa deRoo et al. (2015). Association of Women's Reproductive History with Long-term Mortality and Effect of Socioeconomic Factors. (external link)
- Linn Marie Sørbye; Kari Klungsøyr; Oddrun Samdal et al. (2015). Pre-pregnant body mass index and recreational physical activity: effects on perinatal mortality in a prospective pregnancy cohort. (external link)
- Nils-Halvdan Morken; César Diaz-Garcia; Anna Varberg Reisæter et al. (2015). Obstetric and neonatal outcome of pregnancies fathered by males on immunosuppression after solid organ transplantation. (external link)
- Lisa deRoo; Rolv Skjaerven; Allen Wilcox et al. (2015). Placental abruption and long-term maternal cardiovascular disease mortality: a population-based registry study in Norway and Sweden. (external link)
- Marc-André Verner; Anne E. Loccisano; Nils-Halvdan Morken et al. (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). (external link)
2018
- Lucy K Smith; Naho Morisaki; Nils-Halvdan Morken et al. (2018). An international comparison of death classification at 22 to 25 weeks' gestational age. (external link)
- Hilde Marie Engjom; Nils-Halvdan Morken; Even Høydahl et al. (2018). Risk of eclampsia or HELLP-syndrome by institution availability and place of delivery - A population-based cohort study. (external link)
- Hilde Marie Engjom; Nils-Halvdan Morken; Kari Klungsøyr (2018). Risiko for peripartum perinatal død ved fødsler i fødestue. (external link)
- Ola Malmström; Nils-Halvdan Morken (2018). HELLP syndrome, risk factors in first and second pregnancy: a population-based cohort study. (external link)
- Anne Kvie Sande; Erik Andreas Torkildsen; Ragnar Sande et al. (2018). Maternal allergy as an isolated risk factor for early-onset preeclampsia: An epidemiological study. (external link)
- Veronica Velle-Forbord; Ragnhild Bergene Skråstad; Øyvind Salvesen et al. (2018). Breastfeeding and long-term metabolic health: consequence or reverse causality?. (external link)
- Veronica Velle-Forbord; Ragnhild Bergene Skråstad; Øyvind Salvesen et al. (2018). Breastfeeding and long‐term maternal metabolic health in the HUNT Study: a longitudinal population‐based cohort study. (external link)
- Kim Christian Danielsson; Ingrid Borthen; Nils-Halvdan Morken et al. (2018). Hypertensive pregnancy complications in women with epilepsy and antiepileptic drugs; a population-based cohort study of first pregnancies in Norway. (external link)
- Ali Khatibi; Anne-Marie Nybo Andersen; Mika Gissler et al. (2018). Obstetric and neonatal outcome in women aged 50 years and up: A collaborative, Nordic population-based study. (external link)
- Kim Christian Danielsson; Ingrid Borthen; Nils Erik Gilhus et al. (2018). The effect of parity on risk of complications in pregnant women with epilepsy: a population-based cohort study. (external link)
- Ulrik Schiøler Kesmodel; Nils-Halvdan Morken (2018). Methodological challenges in studies in obstetrics and gynecology. (external link)
- Hilde Marie Engjom; Ole Frithjof Norheim; Bernt Lindtjorn et al. (2018). Obstetric care in Norway - the role of institution availability and place of delivery for maternal and perinatal outcomes. Population-based retrospective cohort studies. (external link)
- Aleksandra Pirnat; Lisa deRoo; Rolv Skjaerven et al. (2018). Women's prepregnancy lipid levels and number of children: a Norwegian prospective population-based cohort study. (external link)
- Nils-Halvdan Morken; Frode Halland; Lisa deRoo et al. (2018). Offspring birthweight by gestational age and parental cardiovascular mortality: a population-based cohort study. (external link)
2017
- Maria Christine Magnus; Sara Ghaderi; Nils-Halvdan Morken et al. (2017). Vanishing twin syndrome among ART singletons and pregnancy outcomes. (external link)
- Linn Marie Sørbye; Rolv Skjaerven; Kari Klungsøyr et al. (2017). Gestational diabetes mellitus and interpregnancy weight change: A population-based cohort study. (external link)
- Hilde Marie Engjom; Nils-Halvdan Morken; Even Høydahl et al. (2017). Increased risk of peripartum perinatal mortality in unplanned births outside an institution: a retrospective population-based study. (external link)
- Hilde Marie Engjom; Nils-Halvdan Morken; Kari Klungsøyr (2017). Reply. (external link)
2014
- Nils-Halvdan Morken; Karin Källén; Bo Jacobsson (2014). Predicting risk of spontaneous preterm delivery in women with a singleton pregnancy. (external link)
- Nils-Halvdan Morken; Gregory S. Travlos; Ralph E. Wilson et al. (2014). Maternal glomerular filtration rate in pregnancy and fetal size. (external link)
- Hilde Marie Engjom; Nils-Halvdan Morken; Ole Frithjof Norheim et al. (2014). Availability and access in modern obstetric care: a retrospective population-based study. (external link)
- Nils-Halvdan Morken; Kari Klungsøyr; Rolv Skjaerven (2014). Perinatal mortality by gestational week and size at birth in singleton pregnancies at and beyond term: A nationwide population-based cohort study. (external link)
2024
- Anders Einum; Quaker E. Harmon; Linn Marie Sørbye et al. (2024). Associations between term cesarean delivery in the first pregnancy and second-pregnancy preterm delivery. (external link)
- Maria Christine Magnus; Yunsung Lee; Ellen Øen Carlsen et al. (2024). Parental epigenetic age acceleration and risk of adverse birth outcomes: the Norwegian mother, father and child cohort study. (external link)
- Ingvild Vollesfjord Moseid; Sølvi Tørressen; Nils-Halvdan Morken et al. (2024). Sammenheng mellom pregravid kroppsmasseindeks og preterm fødsel: En registerstudie. (external link)
- Karolina S. Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2024). Associations between non-registered ultrasound examination in pregnancy and adverse perinatal outcomes in immigrant and non-immigrant women: a Norwegian population-based study 1999–2016. (external link)
- Roy Miodini Nilsen; Ragnhild Bjarkøy Strandberg; Yaliso Yaya et al. (2024). Pre-pregnancy obesity among immigrant and non-immigrant women in Norway: Prevalence, trends, and subgroup variations. (external link)
- Mari Landås Warp; Thea Karoline Walstad Grindstad; Maria Christine Magnus et al. (2024). Early or late menarche is associated with reduced fecundability in the Norwegian Mother, Father and Child Cohort Study. (external link)
- Nadia Arshad; Rolv Skjaerven; Kari Klungsøyr et al. (2024). Pregnancy-Associated Maternal Mortality Within One Year After Childbirth: Population-Based Cohort Study. (external link)
- Cecilie Bryn Nordklev; Ola Gjesdal; Nina Gunnes et al. (2024). Down syndrome and associated atrioventricular septal defects in a nationwide Norwegian cohort: Prevalence, time trends, and outcomes. (external link)
2010
- Nils-halvdan Morken (2010). Time to focus on the public health aspects of preterm delivery. (external link)
- Kelli K Ryckman; Nils-Halvdan Morken; Marquitta J White et al. (2010). Maternal and fetal genetic associations of PTGER3 and PON1 with preterm birth. (external link)
- Nils-halvdan Morken; Susanne Albrechtsen; Bjørn Backe (2010). Caesarean section does not prevent cerebral palsy in singleton term breech infants. (external link)
2021
- Maria Christine Magnus; Alexandra Havdahl; Nils-Halvdan Morken et al. (2021). Risk of miscarriage in women with psychiatric disorders. (external link)
- Karolina S. Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2021). Obstetric outcomes in immigrant women in Norway. (external link)
- Maria Christine Magnus; Nils-Halvdan Morken; Knut-Arne Wensaas et al. (2021). Risk of miscarriage in women with chronic diseases in Norway: A registry linkage study. (external link)
- Camilla Haavaldsen; Nils-Halvdan Morken; Anne Eskild (2021). Antall induksjoner øker – har det noen betydning for utfallet?. (external link)
- Camilla Haavaldsen; Nils-Halvdan Morken; Anne Eskild (2021). Increasing prevalence of labour induction; has it had any impact on the prevalence of adverse pregnancy outcomes? A populations study in Norway 1999-2019.. (external link)
- Karolina Sofia Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2021). Pregnancy Outcomes in Immigrant Women in Norway. (external link)
- Karolina Sofia Mæland; Nils-Halvdan Morken; Schytt Erica et al. (2021). Abruptio placentae hos innvandrerkvinner – en populasjonsstudie med data fra Medisinsk fødselsregister. (external link)
- Karolina Sofia Mæland; Nils-Halvdan Morken; Vigdis Aasheim et al. (2021). Complications during pregnancy and childbirth in immigrant women giving birth in Norway. (external link)
- Karolina Sofia Mæland; Nils-Halvdan Morken; Erica Schytt et al. (2021). Placental Abruption by Maternal Country of Birth: a nationwide population-based study. (external link)
2016
- Jennifer L. Richards; Michael S. Kramer; Paromita Deb-Rinker et al. (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. (external link)
- Frode Halland; Nils-Halvdan Morken; Lisa deRoo et al. (2016). Long-term mortality in mothers with perinatal losses and risk modification by surviving children and attained education: A population-based cohort study. (external link)
- Liv Grimstvedt Kvalvik; Kjell Haug; Kari Klungsøyr et al. (2016). Maternal smoking status in successive pregnancies and risk of having a small for gestational age infant. (external link)
- Nils-Halvdan Morken; Bo Jacobsson (2016). Vaginal progesteronbehandling i graviditet forebygger ikke for tidlig fødsel. (external link)
- Nils-Halvdan Morken; Rolv Skjaerven; Jennifer L. Richards et al. (2016). Adverse infant outcomes associated with discordant gestational age estimates. (external link)