Works by Morken, Nils‐Halvdan

Results: 63

Probability and outcomes of second pregnancy after HELLP syndrome in the first: A population-based registry study.

Published in:

2020

By:

Malmström, Ola;
Håberg, Siri Eldevik;
Morken, Nils‐Halvdan;
Morken, Nils-Halvdan

Publication type:

journal article

Victims and addicts of biostatistics.

Published in:

2019

By:

Morken, Nils‐Halvdan;
Morken, Nils-Halvdan

Publication type:

Editorial

Risk of having one lifetime pregnancy and modification by outcome of pregnancy and perinatal loss.

Published in:

2019

By:

Pirnat, Aleksandra;
DeRoo, Lisa A.;
Skjærven, Rolv;
Morken, Nils‐Halvdan;
Skjaerven, Rolv;
Morken, Nils-Halvdan

Publication type:

journal article

HELLP syndrome, risk factors in first and second pregnancy: a population-based cohort study.

Published in:

2018

By:

Malmström, Ola;
Morken, Nils‐Halvdan;
Morken, Nils-Halvdan

Publication type:

journal article

Methodological challenges in studies in obstetrics and gynecology.

Published in:

2018

By:

Kesmodel, Ulrik Schiøler;
Morken, Nils‐Halvdan;
Morken, Nils-Halvdan

Publication type:

Editorial

Placental abruption in immigrant women in Norway: A population-based study.

Published in:

2021

By:

Mæland, Karolina S.;
Morken, Nils‐Halvdan;
Schytt, Erica;
Aasheim, Vigdis;
Nilsen, Roy M.;
Maeland, Karolina S;
Morken, Nils-Halvdan

Publication type:

journal article

Risk of miscarriage in women with chronic diseases in Norway: A registry linkage study.

Published in:

2021

By:

Magnus, Maria C.;
Morken, Nils-Halvdan;
Wensaas, Knut-Arne;
Wilcox, Allen J.;
Håberg, Siri E.

Publication type:

journal article

Estimated risk of miscarriages in Norwegian health registries according to pregnancy history.

Published in:

Norsk Epidemiologi, 2018, v. 28, n. Supplement 1, p. 10

By:

Magnus, Maria C.;
Wilcox, Allen J.;
Morken, Nils-Halvdan;
Håberg, Siri E.

Publication type:

Article

Risiko for peripartum perinatal død ved fødsler i fødestue.

Published in:

Journal of the Norwegian Medical Association / Tidsskrift for Den Norske Laegeforening, 2018, v. 138, n. 13, p. 1213

By:

ENGJOM, HILDE MARIE;
MORKEN, NILS-HALVDAN;
KLUNGSØYR, KARI

Publication type:

Article

Intimkirurgi i Norge.

Published in:

Journal of the Norwegian Medical Association / Tidsskrift for Den Norske Laegeforening, 2017, v. 137, n. 14/15, p. 987

By:

ROSENBERG, BJØRN E.;
MORKEN, NILS-HALVDAN

Publication type:

Article

Vaginal progesteronbehandling i graviditet forebygger ikke for tidlig fødsel.

Published in:

Journal of the Norwegian Medical Association / Tidsskrift for Den Norske Laegeforening, 2016, v. 136, n. 9, p. 794, doi. 10.4045/tidsskr.16.0338

By:

Morken, Nils-Halvdan;
Jacobsson, Bo

Publication type:

Article

Risk of Subsequent Preeclampsia by Maternal Country of Birth: A Norwegian Population-Based Study.

Published in:

International Journal of Environmental Research & Public Health, 2023, v. 20, n. 5, p. 4109, doi. 10.3390/ijerph20054109

By:

Mæland, Karolina S.;
Morken, Nils-Halvdan;
Schytt, Erica;
Aasheim, Vigdis;
Nilsen, Roy M.

Publication type:

Article

Maternal reasons for requesting planned cesarean section in Norway: a qualitative study.

Published in:

2019

By:

Eide, Kristiane Tislevoll;
Morken, Nils-Halvdan;
Bærøe, Kristine

Publication type:

journal article

Paternal and maternal birthweight and offspring risk of macrosomia at term gestations: A nationwide population study.

Published in:

Paediatric & Perinatal Epidemiology, 2024, v. 38, n. 3, p. 183, doi. 10.1111/ppe.13005

By:

Rasmussen, Svein;
Carlsen, Ellen Øen;
Linde, Lorentz Erland;
Morken, Nils‐Halvdan;
Håberg, Siri Eldevik;
Ebbing, Cathrine

Publication type:

Article

Unveiling sex bias and adverse neonatal outcomes in ultrasound estimation of gestational age: A population‐based cohort study.

Published in:

Paediatric & Perinatal Epidemiology, 2024, v. 38, n. 1, p. 34, doi. 10.1111/ppe.13029

By:

Einum, Anders;
Sørbye, Linn Marie;
Nilsen, Roy Miodini;
Ebbing, Cathrine;
Morken, Nils‐Halvdan

Publication type:

Article

Long‐term cardiovascular mortality in women with twin pregnancies by lifetime reproductive history.

Published in:

Paediatric & Perinatal Epidemiology, 2023, v. 37, n. 1, p. 19, doi. 10.1111/ppe.12928

By:

Basnet, Prativa;
Skjærven, Rolv;
Sørbye, Linn Marie;
Morken, Nils‐Halvdan;
Klungsøyr, Kari;
Singh, Aditi;
Mannseth, Janne;
Harmon, Quaker E.;
Kvalvik, Liv Grimstvedt

Publication type:

Article

Adverse Infant Outcomes Associated with Discordant Gestational Age Estimates.

Published in:

2016

By:

Morken, Nils‐Halvdan;
Skjærven, Rolv;
Richards, Jennifer L.;
Kramer, Michael R.;
Cnattingius, Sven;
Johansson, Stefan;
Gissler, Mika;
Dolan, Siobhan M.;
Zeitlin, Jennifer;
Kramer, Michael S.

Publication type:

journal article

Maternal Smoking Status in Successive Pregnancies and Risk of Having a Small for Gestational Age Infant.

Published in:

2017

By:

Kvalvik, Liv G.;
Haug, Kjell;
Klungsøyr, Kari;
Morken, Nils ‐ Halvdan;
DeRoo, Lisa A.;
Skjærven, Rolv

Publication type:

journal article

Maternal complications in pregnancy and childbirth for women with epilepsy: Time trends in a nationwide cohort.

Published in:

PLoS ONE, 2019, v. 14, n. 11, p. 1, doi. 10.1371/journal.pone.0225334

By:

Danielsson, Kim Christian;
Gilhus, Nils Erik;
Borthen, Ingrid;
Lie, Rolv Terje;
Morken, Nils-Halvdan

Publication type:

Article

Lipid levels after childbirth and association with number of children: A population-based cohort study.

Published in:

PLoS ONE, 2019, v. 14, n. 10, p. 1, doi. 10.1371/journal.pone.0223602

By:

Pirnat, Aleksandra;
DeRoo, Lisa A.;
Skjærven, Rolv;
Morken, Nils-Halvdan

Publication type:

Article

Pre-pregnant body mass index, gestational weight gain and the risk of operative delivery.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2013, v. 92, n. 7, p. 809, doi. 10.1111/aogs.12115

By:

Morken, Nils‐Halvdan;
Klungsøyr, Kari;
Magnus, Per;
Skjærven, Rolv

Publication type:

Article

Time to focus on the public health aspects of preterm delivery.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2010, v. 89, n. 2, p. 165, doi. 10.3109/00016340903530944

By:

MORKEN, NILS-HALVDAN

Publication type:

Article

Quantification of Ureaplasma urealyticum DNA in the amniotic fluid from patients in PTL and pPROM and its relation to inflammatory cytokine levels.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2009, v. 88, n. 1, p. 63, doi. 10.1080/00016340802572646

By:

JACOBSSON, BO;
AALTONEN, RIIKKA;
RANTAKOKKO-JALAVA, KAISU;
MORKEN, NILS-HALVDAN;
ALANEN, ANNA

Publication type:

Article

Subgroups of preterm delivery in the Norwegian Mother and Child Cohort Study.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2008, v. 87, n. 12, p. 1374, doi. 10.1080/00016340802491508

By:

Morken, Nils-Halvdan;
Magnus, Per;
Jacobsson, Bo

Publication type:

Article

Insulin producing primary ovarian carcinoid tumor.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2007, v. 86, n. 4, p. 500, doi. 10.1080/00016340600613477

By:

Morken, Nils-Halvdan;
Majak, Bernard;
Kahn, Jarl A.

Publication type:

Article

Hyperreactio luteinalis, presented as an acute abdomen.

Published in:

2007

By:

Morken, Nils-Halvdan;
Friberg-Otterstad, Unn Mette;
Kahn, Jarl A.

Publication type:

Case Study

Placenta accreta and methotrexate treatment.

Published in:

2006

By:

Morken, Nils-Halvdan;
Kahn, Jarl A.

Publication type:

journal article

Preterm birth in Sweden 1973–2001: Rate, subgroups, and effect of changing patterns in multiple births, maternal age, and smoking.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2005, v. 84, n. 6, p. 558, doi. 10.1111/j.0001-6349.2005.00765.x

By:

Morken, Nils-Halvdan;
Källen, Karin;
Hagberg, Henrik;
Jacobsson, Bo

Publication type:

Article

Cesarean delivery in Norwegian nulliparous women with singleton cephalic term births, 1967-2020: a population-based study.

Published in:

2022

By:

Sima, Yeneabeba Tilahun;
Skjærven, Rolv;
Kvalvik, Liv Grimstvedt;
Morken, Nils-Halvdan;
Klungsøyr, Kari;
Sørbye, Linn Marie

Publication type:

journal article

Preconception leisure-time physical activity and family history of stroke and myocardial infarction associate with preterm delivery: findings from a Norwegian cohort.

Published in:

2022

By:

Engen, Tone;
Owe, Katrine Mari;
Horn, Julie;
Sulo, Gerhard;
Næss, Øyvind Erik;
Juliusson, Petur Benedikt;
Morken, Nils-Halvdan;
Egeland, Grace Margrethe

Publication type:

journal article

Preconception leisure-time physical activity and family history of stroke and myocardial infarction associate with preterm delivery: findings from a Norwegian cohort.

Published in:

BMC Pregnancy & Childbirth, 2022, v. 22, n. 1, p. 1, doi. 10.1186/s12884-022-04528-y

By:

Engen, Tone;
Owe, Katrine Mari;
Horn, Julie;
Sulo, Gerhard;
Næss, Øyvind Erik;
Juliusson, Petur Benedikt;
Morken, Nils-Halvdan;
Egeland, Grace Margrethe

Publication type:

Article

Correction: Parental epigenetic age acceleration and risk of adverse birth outcomes: the Norwegian mother, father and child cohort study.

Published in:

2025

By:

Magnus, Maria C.;
Lee, Yunsung;
Carlsen, Ellen Ø.;
Arge, Lise A.;
Jugessur, Astanand;
Kvalvik, Liv G.;
Morken, Nils-Halvdan;
Ramlau-Hansen, Cecilia H.;
Myrskylä, Mikko;
Magnus, Per;
Håberg, Siri E.

Publication type:

Correction Notice

Parental epigenetic age acceleration and risk of adverse birth outcomes: the Norwegian mother, father and child cohort study.

Published in:

BMC Medicine, 2024, v. 22, n. 1, p. 1, doi. 10.1186/s12916-024-03780-7

By:

Magnus, Maria C.;
Lee, Yunsung;
Carlsen, Ellen Ø.;
Arge, Lise A.;
Jugessur, Astanand;
Kvalvik, Liv G.;
Morken, Nils-Halvdan;
Ramlau-Hansen, Cecilia H.;
Myrskylä, Mikko;
Magnus, Per;
Håberg, Siri E.

Publication type:

Article

Birth Weight in Consecutive Pregnancies and Maternal Cardiovascular Disease Mortality Among Spontaneous and Iatrogenic Term Births: A Population-Based Cohort Study.

Published in:

American Journal of Epidemiology, 2023, v. 192, n. 8, p. 1326, doi. 10.1093/aje/kwad075

By:

Sima, Yeneabeba Tilahun;
Skjaerven, Rolv;
Kvalvik, Liv Grimstvedt;
Morken, Nils-Halvdan;
Klungsøyr, Kari;
Mannseth, Janne;
Sørbye, Linn Marie

Publication type:

Article

Rutinemessig urindyrkning hos gravide -- slutt med det.

Published in:

Journal of the Norwegian Medical Association / Tidsskrift for Den Norske Laegeforening, 2020, v. 140, n. 17, p. 1735

By:

BACKE, BJØRN;
JACOBSEN, ANNE FLEM;
MAGNUSSEN, ELISABETH BALSTAD;
MORKEN, NILS-HALVDAN

Publication type:

Article

Utilization of antenatal care among immigrant women in Norway: a nationwide register-based cohort study.

Published in:

BMC Pregnancy & Childbirth, 2025, v. 25, n. 1, p. 1, doi. 10.1186/s12884-025-07519-x

By:

Rotevatn, Torill A.;
Høy-Petersen, Nina;
Hussaini, Lema;
Håberg, Siri E.;
Magnus, Maria C.;
Morken, Nils-Halvdan;
Wensaas, Knut-Arne;
Flaathen, Eva Marie;
Hart, Rannveig Kaldager

Publication type:

Article

Pregnancy‐Associated Maternal Mortality Within One Year After Childbirth: Population‐Based Cohort Study.

Published in:

BJOG: An International Journal of Obstetrics & Gynaecology, 2025, v. 132, n. 3, p. 365, doi. 10.1111/1471-0528.17985

By:

Arshad, Nadia;
Skjærven, Rolv;
Klungsøyr, Kari;
Sørbye, Linn Marie;
Kvalvik, Liv Grimstvedt;
Morken, Nils‐Halvdan

Publication type:

Article

Risk of adverse pregnancy outcomes in twin‐ and singleton‐born women: An inter‐generational cohort study.

Published in:

BJOG: An International Journal of Obstetrics & Gynaecology, 2024, v. 131, n. 6, p. 750, doi. 10.1111/1471-0528.17690

By:

Basnet, Prativa;
Skjærven, Rolv;
Harmon, Quaker E.;
Sørbye, Linn Marie;
Morken, Nils‐Halvdan;
Singh, Aditi;
Klungsøyr, Kari;
Kvalvik, Liv Grimstvedt

Publication type:

Article

Predicting Risk of Spontaneous Preterm Delivery in Women with a Singleton Pregnancy.

Published in:

Paediatric & Perinatal Epidemiology, 2014, v. 28, n. 1, p. 11, doi. 10.1111/ppe.12087

By:

Morken, Nils‐Halvdan;
Källen, Karin;
Jacobsson, Bo

Publication type:

Article

Secular trends in the epidemiology of pre-eclampsia throughout 40 years in Norway: prevalence, risk factors and perinatal survival.

Published in:

Paediatric & Perinatal Epidemiology, 2012, v. 26, n. 3, p. 190, doi. 10.1111/j.1365-3016.2012.01260.x

By:

Klungsøyr, Kari;
Morken, Nils Halvdan;
Irgens, Lorentz;
Vollset, Stein Emil;
Skjærven, Rolv

Publication type:

Article

Outcomes of preterm children according to type of delivery onset: a nationwide population-based study.

Published in:

Paediatric & Perinatal Epidemiology, 2007, v. 21, n. 5, p. 458, doi. 10.1111/j.1365-3016.2007.00823.x

By:

Morken, Nils-Halvdan;
Källen, Karin;
Jacobsson, Bo

Publication type:

Article

Maternal time interval between menarche and childbirth is associated with daughter's age at menarche.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2025, v. 104, n. 6, p. 1101, doi. 10.1111/aogs.15088

By:

Warp, Mari Landås;
Grindstad, Thea;
Skåra, Karoline H.;
Magnus, Maria C.;
Håberg, Siri E.;
Morken, Nils‐Halvdan;
Romundstad, Liv Bente;
Ramlau‐Hansen, Cecilia H.;
Hanevik, Hans Ivar

Publication type:

Article

Associations between term cesarean delivery in the first pregnancy and second‐pregnancy preterm delivery.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2025, v. 104, n. 1, p. 68, doi. 10.1111/aogs.14996

By:

Einum, Anders;
Harmon, Quaker E.;
Sørbye, Linn Marie;
Nilsen, Roy Miodini;
Morken, Nils‐Halvdan

Publication type:

Article

Down syndrome and associated atrioventricular septal defects in a nationwide Norwegian cohort: Prevalence, time trends, and outcomes.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2024, v. 103, n. 10, p. 2024, doi. 10.1111/aogs.14932

By:

Nordklev, Cecilie Bryn;
Gjesdal, Ola;
Gunnes, Nina;
Holmstrøm, Henrik;
Morken, Nils‐Halvdan;
Vangen, Siri;
Sitras, Vasilis

Publication type:

Article

Pre‐pregnancy obesity among immigrant and non‐immigrant women in Norway: Prevalence, trends, and subgroup variations.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2024, v. 103, n. 10, p. 2081, doi. 10.1111/aogs.14923

By:

Nilsen, Roy M.;
Strandberg, Ragnhild B.;
Yaya, Yaliso;
Fismen, Anne‐Siri;
Macsali, Ferenc;
Morken, Nils‐Halvdan;
Gómez Real, Francisco;
Schytt, Erica;
Vik, Eline S.;
Sørbye, Linn Marie

Publication type:

Article

Birthweight of the subsequent singleton pregnancy following a first twin or singleton pregnancy.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2023, v. 102, n. 12, p. 1674, doi. 10.1111/aogs.14644

By:

Basnet, Prativa;
Skjærven, Rolv;
Harmon, Quaker E.;
Wilcox, Allen J.;
Klungsøyr, Kari;
Sørbye, Linn Marie;
Morken, Nils‐Halvdan;
Kvalvik, Liv G.

Publication type:

Article

Pregestational maternal risk factors for preterm and term preeclampsia: A population‐based cohort study.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2023, v. 102, n. 11, p. 1549, doi. 10.1111/aogs.14642

By:

Sande, Anne Kvie;
Dalen, Ingvild;
Torkildsen, Erik Andreas;
Sande, Ragnar Kvie;
Morken, Nils‐Halvdan

Publication type:

Article

Wrapping up eight years of editing in a healthy medical journal.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2023, v. 102, n. 3, p. 238, doi. 10.1111/aogs.14511

By:

Morken, Nils‐Halvdan

Publication type:

Article

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.

Published in:

Acta Obstetricia et Gynecologica Scandinavica, 2023, v. 102, n. 2, p. 158, doi. 10.1111/aogs.14489

By:

Haavaldsen, Camilla;
Morken, Nils‐Halvdan;
Saugstad, Ola Didrik;
Eskild, Anne

Publication type:

Article

Quantitative User Data From a Chatbot Developed for Women With Gestational Diabetes Mellitus: Observational Study.

Published in:

JMIR Formative Research, 2022, v. 6, n. 4, p. 1, doi. 10.2196/28091

By:

Sagstad, Mari Haaland;
Morken, Nils-Halvdan;
Lund, Agnethe;
Dingsør, Linn Jannike;
Nilsen, Anne Britt Vika;
Sorbye, Linn Marie

Publication type:

Article