Publications 2024

Bonnichsen ML, Gunnes N, Nyfløt LT, Haugen G, Roland MC (2024)
Prepregnancy body mass index and visceral fat exhibit divergent associations with metabolic factors in pregnant women with obesity: A Norwegian cohort study
Acta Obstet Gynecol Scand, 103 (12), 2511-2521
DOI 10.1111/aogs.14968, PubMed 39278817

Gaudernack LC, Einarsen AES, Sørbye IK, Lukasse M, Gunnes N, Michelsen TM (2024)
The effect of intravenous hyoscine butylbromide on slow progress in labor (BUSCLAB): A double-blind randomized placebo-controlled trial
PLoS Med, 21 (3), e1004352
DOI 10.1371/journal.pmed.1004352, PubMed 38547322

Hviid A, Nieminen TA, Pihlström N, Gunnes N, Dahl J, Karlstad Ø, Gulseth HL, Sundström A, Husby A, Hansen JV, Ljung R, Hovi P (2024)
Booster vaccination with SARS-CoV-2 mRNA vaccines and myocarditis in adolescents and young adults: a Nordic cohort study
Eur Heart J, 45 (15), 1327-1335
DOI 10.1093/eurheartj/ehae056, PubMed 38365960

Langen I, Langesæter E, Gunnes N, Almaas VM, Haugen G, Estensen ME, Sørbye IK (2024)
Hypertensive disorders of pregnancy among women with cardiovascular disease in Norway: A historical cohort study
Acta Obstet Gynecol Scand, 103 (7), 1457-1465
DOI 10.1111/aogs.14841, PubMed 38597240

Michelsen TM, Skytte HN, Gunnes N, Holven KB, Christensen JJ, Roland MCP (2024)
Metabolic profiles in early pregnancy associated with metabolic pregnancy complications in women with obesity
J Reprod Immunol, 166, 104397
DOI 10.1016/j.jri.2024.104397, PubMed 39577057

Nordklev CB, Gjesdal O, Gunnes N, Holmstrøm H, Morken NH, Vangen S, Sitras V (2024)
Down syndrome and associated atrioventricular septal defects in a nationwide Norwegian cohort: Prevalence, time trends, and outcomes
Acta Obstet Gynecol Scand, 103 (10), 2024-2030
DOI 10.1111/aogs.14932, PubMed 39104126

Riska BSL, Gunnes N, Finnes TE, Meyer HE, Hoff M, Omsland TK, Holvik K (2024)
Risk of first hip fracture under treatment with zoledronic acid versus alendronate: a NOREPOS cohort study of 88,000 Norwegian men and women in outpatient care
Arch Osteoporos, 19 (1), 102
DOI 10.1007/s11657-024-01458-4, PubMed 39443347

Publications 2023

Berge MB, Kessler J, Yli BM, Staff AC, Gunnes N, Jacobsen AF (2023)
Neonatal outcomes associated with time from a high fetal blood lactate concentration to operative delivery
Acta Obstet Gynecol Scand, 102 (8), 1106-1114
DOI 10.1111/aogs.14597, PubMed 37287317

Bernitz S, Betran AP, Gunnes N, Zhang J, Blix E, Øian P, Eggebø TM, Dalbye R (2023)
Association of oxytocin augmentation and duration of labour with postpartum haemorrhage: A cohort study of nulliparous women
Midwifery, 123, 103705
DOI 10.1016/j.midw.2023.103705, PubMed 37244235

Husby A, Gulseth HL, Hovi P, Hansen JV, Pihlström N, Gunnes N, Härkänen T, Dahl J, Karlstad Ø, Heliö T, Køber L, Ljung R, Hviid A (2023)
Clinical outcomes of myocarditis after SARS-CoV-2 mRNA vaccination in four Nordic countries: population based cohort study
BMJ Med, 2 (1), e000373
DOI 10.1136/bmjmed-2022-000373, PubMed 36936260

Riska BSL, Gunnes N, Stigum H, Finnes TE, Meyer HE, Omsland TK, Holvik K (2023)
Time-varying exposure to anti-osteoporosis drugs and risk of first-time hip fracture: a population wide study within the Norwegian Epidemiologic Osteoporosis Studies (NOREPOS)
Osteoporos Int, 34 (8), 1369-1379
DOI 10.1007/s00198-023-06752-4, PubMed 37100950

Skytte HN, Christensen JJ, Gunnes N, Holven KB, Lekva T, Henriksen T, Michelsen TM, Roland MCP (2023)
Metabolic profiling of pregnancies complicated by preeclampsia: A longitudinal study
Acta Obstet Gynecol Scand, 102 (3), 334-343
DOI 10.1111/aogs.14505, PubMed 36647289

Skytte HN, Roland MCP, Christensen JJ, Holven KB, Lekva T, Gunnes N, Michelsen TM (2023)
Maternal metabolic profiling across body mass index groups: An exploratory longitudinal study
Acta Obstet Gynecol Scand, 103 (3), 540-550
DOI 10.1111/aogs.14750, PubMed 38083835

Publications 2022

Holvik K, Hjellvik V, Karlstad Ø, Gunnes N, Hoff M, Tell GS, Meyer HE (2022)
Contribution of an extensive medication-based comorbidity index (Rx-Risk) in explaining the excess mortality after hip fracture in older Norwegians: a NOREPOS cohort study
BMJ Open, 12 (5), e057823
DOI 10.1136/bmjopen-2021-057823, PubMed 35501100

Karlstad Ø, Hovi P, Husby A, Härkänen T, Selmer RM, Pihlström N, Hansen JV, Nohynek H, Gunnes N, Sundström A, Wohlfahrt J, Nieminen TA, Grünewald M, Gulseth HL, Hviid A, Ljung R (2022)
SARS-CoV-2 Vaccination and Myocarditis in a Nordic Cohort Study of 23 Million Residents
JAMA Cardiol, 7 (6), 600-612
DOI 10.1001/jamacardio.2022.0583, PubMed 35442390

Lopez-Doriga Ruiz P, Gunnes N, Michael Gran J, Karlstad Ø, Selmer R, Dahl J, Bøås H, Aubrey White R, Christine Hofman A, Hessevik Paulsen T, Viksmoen Watle S, Hylen Ranhoff A, Bukholm G, Løvdal Gulseth H, Tapia G (2022)
Short-term safety of COVID-19 mRNA vaccines with respect to all-cause mortality in the older population in Norway
Vaccine, 41 (2), 323-332
DOI 10.1016/j.vaccine.2022.10.085, PubMed 36376216

Sørbye IK, Gaudernack LC, Einarsen A, Rosseland LA, Lukasse M, Gunnes N, Michelsen TM (2022)
Study protocol for the BUSCopan in LABor (BUSCLAB) study: A randomized placebo-controlled trial investigating the effect of butylscopolamine bromide to prevent prolonged labor
PLoS One, 17 (11), e0276613
DOI 10.1371/journal.pone.0276613, PubMed 36327275

Publications 2020

Dalbye R, Gunnes N, Blix E, Zhang J, Eggebø T, Nistov Tokheim L, Øian P, Bernitz S (2020)
Maternal body mass index and risk of obstetric, maternal and neonatal outcomes: A cohort study of nulliparous women with spontaneous onset of labor
Acta Obstet Gynecol Scand, 100 (3), 521-530
DOI 10.1111/aogs.14017, PubMed 33031566

Gunnes N, Gjessing HK, Bakken IJ, Ghaderi S, Gran JM, Hungnes O, Magnus P, Samuelsen SO, Skrondal A, Stoltenberg C, Trogstad L, Wilcox AJ, Håberg SE (2020)
Seasonal and pandemic influenza during pregnancy and risk of fetal death: A Norwegian registry-based cohort study
Eur J Epidemiol, 35 (4), 371-379
DOI 10.1007/s10654-020-00600-z, PubMed 31950373

Publications 2017

Ghaderi S, Størdal K, Gunnes N, Bakken IJ, Magnus P, Håberg SE (2017)
Encephalitis after influenza and vaccination: a nationwide population-based registry study from Norway
Int J Epidemiol, 46 (5), 1618-1626
DOI 10.1093/ije/dyx149, PubMed 29024996

Havdahl KA, Bishop SL, Surén P, Øyen AS, Lord C, Pickles A, von Tetzchner S, Schjølberg S, Gunnes N, Hornig M, Lipkin WI, Susser E, Bresnahan M, Magnus P, Stenberg N, Reichborn-Kjennerud T, Stoltenberg C (2017)
The influence of parental concern on the utility of autism diagnostic instruments
Autism Res, 10 (10), 1672-1686
DOI 10.1002/aur.1817, PubMed 28639396

Hornig M, Bresnahan MA, Che X, Schultz AF, Ukaigwe JE, Eddy ML, Hirtz D, Gunnes N, Lie KK, Magnus P, Mjaaland S, Reichborn-Kjennerud T, Schjølberg S, Øyen AS, Levin B, Susser ES, Stoltenberg C, Lipkin WI (2017)
Prenatal fever and autism risk
Mol Psychiatry, 23 (3), 759-766
DOI 10.1038/mp.2017.119, PubMed 28607458

Kårhus LL, Gunnes N, Størdal K, Bakken IJ, Tapia G, Stene LC, Håberg SE, Mårild K (2017)
Influenza and risk of later celiac disease: a cohort study of 2.6 million people
Scand J Gastroenterol, 53 (1), 15-23
DOI 10.1080/00365521.2017.1362464, PubMed 29076383

Mahic M, Mjaaland S, Bøvelstad HM, Gunnes N, Susser E, Bresnahan M, Øyen AS, Levin B, Che X, Hirtz D, Reichborn-Kjennerud T, Schjølberg S, Roth C, Magnus P, Stoltenberg C, Surén P, Hornig M, Lipkin WI (2017)
Maternal Immunoreactivity to Herpes Simplex Virus 2 and Risk of Autism Spectrum Disorder in Male Offspring
mSphere, 2 (1)
DOI 10.1128/mSphere.00016-17, PubMed 28251181

Mahic M, Mjaaland S, Bøvelstad HM, Gunnes N, Susser E, Bresnahan M, Øyen AS, Levin B, Che X, Hirtz D, Reichborn-Kjennerud T, Schjølberg S, Roth C, Magnus P, Stoltenberg C, Surén P, Hornig M, Lipkin WI (2017)
Correction for Mahic et al., "Maternal Immunoreactivity to Herpes Simplex Virus 2 and Risk of Autism Spectrum Disorder in Male Offspring"
mSphere, 2 (2)
DOI 10.1128/mSphere.00154-17, PubMed 28435887

Thallinger M, Ersdal HL, Francis F, Yeconia A, Mduma E, Kidanto H, Linde JE, Eilevstjønn J, Gunnes N, Størdal K (2017)
Born not breathing: A randomised trial comparing two self-inflating bag-masks during newborn resuscitation in Tanzania
Resuscitation, 116, 66-72
DOI 10.1016/j.resuscitation.2017.04.012, PubMed 28427883

Trogstad L, Bakken IJ, Gunnes N, Ghaderi S, Stoltenberg C, Magnus P, Håberg SE (2017)
Narcolepsy and hypersomnia in Norwegian children and young adults following the influenza A(H1N1) 2009 pandemic
Vaccine, 35 (15), 1879-1885
DOI 10.1016/j.vaccine.2017.02.053, PubMed 28302408

Aaberg KM, Gunnes N, Bakken IJ, Lund Søraas C, Berntsen A, Magnus P, Lossius MI, Stoltenberg C, Chin R, Surén P (2017)
Incidence and Prevalence of Childhood Epilepsy: A Nationwide Cohort Study
Pediatrics, 139 (5)
DOI 10.1542/peds.2016-3908, PubMed 28557750

Publications 2016

Bakken IJ, Tveito K, Aaberg KM, Ghaderi S, Gunnes N, Trogstad L, Magnus P, Stoltenberg C, Håberg SE (2016)
Comorbidities treated in primary care in children with chronic fatigue syndrome / myalgic encephalomyelitis: A nationwide registry linkage study from Norway
BMC Fam Pract, 17 (1), 128
DOI 10.1186/s12875-016-0527-7, PubMed 27590471

Publications 2015

Bakken IJ, Aaberg KM, Ghaderi S, Gunnes N, Trogstad L, Magnus P, Håberg SE (2015)
Febrile seizures after 2009 influenza A (H1N1) vaccination and infection: a nationwide registry-based study
BMC Infect Dis, 15, 506
DOI 10.1186/s12879-015-1263-7, PubMed 26553258

Bresnahan M, Hornig M, Schultz AF, Gunnes N, Hirtz D, Lie KK, Magnus P, Reichborn-Kjennerud T, Roth C, Schjølberg S, Stoltenberg C, Surén P, Susser E, Lipkin WI (2015)
Association of maternal report of infant and toddler gastrointestinal symptoms with autism: evidence from a prospective birth cohort
JAMA Psychiatry, 72 (5), 466-74
DOI 10.1001/jamapsychiatry.2014.3034, PubMed 25806498

Carter KW, Francis RW, Carter KW, Francis RW, Bresnahan M, Gissler M, Grønborg TK, Gross R, Gunnes N, Hammond G, Hornig M, Hultman CM, Huttunen J, Langridge A, Leonard H, Newman S, Parner ET, Petersson G, Reichenberg A, Sandin S, Schendel DE, Schalkwyk L, Sourander A, Steadman C, Stoltenberg C et al. (2015)
ViPAR: a software platform for the Virtual Pooling and Analysis of Research Data
Int J Epidemiol, 45 (2), 408-416
DOI 10.1093/ije/dyv193, PubMed 26452388

Ghaderi S, Gunnes N, Bakken IJ, Magnus P, Trogstad L, Håberg SE (2015)
Risk of Guillain-Barré syndrome after exposure to pandemic influenza A(H1N1)pdm09 vaccination or infection: a Norwegian population-based cohort study
Eur J Epidemiol, 31 (1), 67-72
DOI 10.1007/s10654-015-0047-0, PubMed 26008750

Magnus P, Gunnes N, Tveito K, Bakken IJ, Ghaderi S, Stoltenberg C, Hornig M, Lipkin WI, Trogstad L, Håberg SE (2015)
Chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is associated with pandemic influenza infection, but not with an adjuvanted pandemic influenza vaccine
Vaccine, 33 (46), 6173-7
DOI 10.1016/j.vaccine.2015.10.018, PubMed 26475444

Sandin S, Schendel D, Magnusson P, Hultman C, Surén P, Susser E, Grønborg T, Gissler M, Gunnes N, Gross R, Henning M, Bresnahan M, Sourander A, Hornig M, Carter K, Francis R, Parner E, Leonard H, Rosanoff M, Stoltenberg C, Reichenberg A (2015)
Autism risk associated with parental age and with increasing difference in age between the parents
Mol Psychiatry, 21 (5), 693-700
DOI 10.1038/mp.2015.70, PubMed 26055426

Publications 2014

Bakken IJ, Revdal E, Nesvåg R, Brenner E, Knudsen GP, Surén P, Ghaderi S, Gunnes N, Magnus P, Reichborn-Kjennerud T, Camilla Stoltenberg, Trogstad LI, Håberg SE, Brodtkorb E (2014)
Substance use disorders and psychotic disorders in epilepsy: a population-based registry study
Epilepsy Res, 108 (8), 1435-43
DOI 10.1016/j.eplepsyres.2014.06.021, PubMed 25062893

Bakken IJ, Tveito K, Gunnes N, Ghaderi S, Stoltenberg C, Trogstad L, Håberg SE, Magnus P (2014)
Two age peaks in the incidence of chronic fatigue syndrome/myalgic encephalomyelitis: a population-based registry study from Norway 2008-2012
BMC Med, 12, 167
DOI 10.1186/s12916-014-0167-5, PubMed 25274261

Nilsen RM, Mastroiacovo P, Gunnes N, Alsaker ER, Bjørke-Monsen AL, Eussen SJ, Haugen M, Johannessen A, Meltzer HM, Stoltenberg C, Ueland PM, Vollset SE (2014)
Folic acid supplementation and interpregnancy interval
Paediatr Perinat Epidemiol, 28 (3), 270-4
DOI 10.1111/ppe.12111, PubMed 24506308

Stenberg N, Bresnahan M, Gunnes N, Hirtz D, Hornig M, Lie KK, Lipkin WI, Lord C, Magnus P, Reichborn-Kjennerud T, Schjølberg S, Surén P, Susser E, Svendsen BK, von Tetzchner S, Oyen AS, Stoltenberg C (2014)
Identifying children with autism spectrum disorder at 18 months in a general population sample
Paediatr Perinat Epidemiol, 28 (3), 255-62
DOI 10.1111/ppe.12114, PubMed 24547686

Surén P, Gunnes N, Roth C, Bresnahan M, Hornig M, Hirtz D, Lie KK, Lipkin WI, Magnus P, Reichborn-Kjennerud T, Schjølberg S, Susser E, Oyen AS, Smith GD, Stoltenberg C (2014)
Parental obesity and risk of autism spectrum disorder
Pediatrics, 133 (5), e1128-38
DOI 10.1542/peds.2013-3664, PubMed 24709932

Publications 2013

Gunnes N, Surén P, Bresnahan M, Hornig M, Lie KK, Lipkin WI, Magnus P, Nilsen RM, Reichborn-Kjennerud T, Schjølberg S, Susser ES, Øyen AS, Stoltenberg C (2013)
Interpregnancy interval and risk of autistic disorder
Epidemiology, 24 (6), 906-12
DOI 10.1097/01.ede.0000434435.52506.f5, PubMed 24045716

Haberg SE, Trogstad L, Gunnes N, Wilcox AJ, Gjessing HK, Samuelsen SO, Skrondal A, Cappelen I, Engeland A, Aavitsland P, Madsen S, Buajordet I, Furu K, Nafstad P, Vollset SE, Feiring B, Nokleby H, Magnus P, Stoltenberg C (2013)
Risk of Fetal Death After Pandemic Influenza Virus Infection or Vaccination EDITORIAL COMMENT
Obstet. Gynecol. Surv., 68 (5), 348-349
DOI 10.1097/01.ogx.0000430377.29993.2b

Håberg SE, Trogstad L, Gunnes N, Wilcox AJ, Gjessing HK, Samuelsen SO, Skrondal A, Cappelen I, Engeland A, Aavitsland P, Madsen S, Buajordet I, Furu K, Nafstad P, Vollset SE, Feiring B, Nøkleby H, Magnus P, Stoltenberg C (2013)
Risk of fetal death after pandemic influenza virus infection or vaccination
N Engl J Med, 368 (4), 333-40
DOI 10.1056/NEJMoa1207210, PubMed 23323868

Nilsen RM, Surén P, Gunnes N, Alsaker ER, Bresnahan M, Hirtz D, Hornig M, Lie KK, Lipkin WI, Reichborn-Kjennerud T, Roth C, Schjølberg S, Smith GD, Susser E, Vollset SE, Øyen AS, Magnus P, Stoltenberg C (2013)
Analysis of self-selection bias in a population-based cohort study of autism spectrum disorders
Paediatr Perinat Epidemiol, 27 (6), 553-63
DOI 10.1111/ppe.12077, PubMed 23919580

Schendel DE, Bresnahan M, Carter KW, Francis RW, Gissler M, Grønborg TK, Gross R, Gunnes N, Hornig M, Hultman CM, Langridge A, Lauritsen MB, Leonard H, Parner ET, Reichenberg A, Sandin S, Sourander A, Stoltenberg C, Suominen A, Surén P, Susser E (2013)
The International Collaboration for Autism Registry Epidemiology (iCARE): multinational registry-based investigations of autism risk factors and trends
J Autism Dev Disord, 43 (11), 2650-63
DOI 10.1007/s10803-013-1815-x, PubMed 23563868

Publications 2012

Khatibi A, Brantsaeter AL, Sengpiel V, Kacerovsky M, Magnus P, Morken NH, Myhre R, Gunnes N, Jacobsson B (2012)
Prepregnancy maternal body mass index and preterm delivery
Am J Obstet Gynecol, 207 (3), 212.e1-7
DOI 10.1016/j.ajog.2012.06.002, PubMed 22835494

Surén P, Bakken IJ, Aase H, Chin R, Gunnes N, Lie KK, Magnus P, Reichborn-Kjennerud T, Schjølberg S, Øyen AS, Stoltenberg C (2012)
Autism spectrum disorder, ADHD, epilepsy, and cerebral palsy in Norwegian children
Pediatrics, 130 (1), e152-8
DOI 10.1542/peds.2011-3217, PubMed 22711729

Vikanes AV, Støer NC, Gunnes N, Grjibovski AM, Samuelsen SO, Magnus P, Melby KK (2012)
Helicobacter pylori infection and severe hyperemesis gravidarum among immigrant women in Norway: a case-control study
Eur J Obstet Gynecol Reprod Biol, 167 (1), 41-6
DOI 10.1016/j.ejogrb.2012.11.007, PubMed 23273662

Publications 2011

Morken NH, Gunnes N, Magnus P, Jacobsson B (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
Eur J Obstet Gynecol Reprod Biol, 159 (2), 310-4
DOI 10.1016/j.ejogrb.2011.08.006, PubMed 21962464

Saastad E, Israel P, Ahlborg T, Gunnes N, Frøen JF (2011)
Fetal movement counting--effects on maternal-fetal attachment: a multicenter randomized controlled trial
Birth, 38 (4), 282-93
DOI 10.1111/j.1523-536X.2011.00489.x, PubMed 22112328

Winje BA, Saastad E, Gunnes N, Tveit JV, Stray-Pedersen B, Flenady V, Frøen JF (2011)
Analysis of 'count-to-ten' fetal movement charts: a prospective cohort study
BJOG, 118 (10), 1229-38
DOI 10.1111/j.1471-0528.2011.02993.x, PubMed 21585644

Publications 2010

Vikanes A, Grjibovski AM, Vangen S, Gunnes N, Samuelsen SO, Magnus P (2010)
Maternal body composition, smoking, and hyperemesis gravidarum
Ann Epidemiol, 20 (8), 592-8
DOI 10.1016/j.annepidem.2010.05.009, PubMed 20609338

Vikanes A, Skjaerven R, Grjibovski AM, Gunnes N, Vangen S, Magnus P (2010)
Recurrence of hyperemesis gravidarum across generations: population based cohort study
BMJ, 340, c2050
DOI 10.1136/bmj.c2050, PubMed 21030362

Vikanes A, Skjaerven R, Grjibovski AM, Gunnes N, Vangen S, Magnus P (2010)
Recurrence of Hyperemesis Gravidarum Across Generations: Population-Based Cohort Study EDITORIAL COMMENT
Obstet. Gynecol. Surv., 65 (9), 549-550
DOI 10.1097/OGX.0b013e3182021d24

Aalen OO, Gunnes N (2010)
A dynamic approach for reconstructing missing longitudinal data using the linear increments model
Biostatistics, 11 (3), 453-72
DOI 10.1093/biostatistics/kxq014, PubMed 20388914

Publications 2009

Gunnes N, Farewell DM, Seierstad TG, Aalen OO (2009)
Analysis of censored discrete longitudinal data: estimation of mean response
Stat Med, 28 (4), 605-24
DOI 10.1002/sim.3492, PubMed 19035531

Gunnes N, Seierstad TG, Aamdal S, Brunsvig PF, Jacobsen AB, Sundstrøm S, Aalen OO (2009)
Assessing quality of life in a randomized clinical trial: correcting for missing data
BMC Med Res Methodol, 9, 28
DOI 10.1186/1471-2288-9-28, PubMed 19405936

Publications 2007

Gunnes N, Borgan O, Aalen OO (2007)
Estimating stage occupation probabilities in non-Markov models
Lifetime Data Anal, 13 (2), 211-40
DOI 10.1007/s10985-007-9034-4, PubMed 17334924