Vidar Hjellvik

Fagområder

Legemiddelepidemiologi

Faglig bakgrunn

Statistiker

Prosjekter og publikasjoner

Tone Bjørge, Vidar Hjellvik, Line Bjørge, Isabel dos Santos Silva, Kari Furu, Rune Kvåle, Anders Engeland, (2023). Incidence and prevalence of drugs used for chronic diseases in survivors of adult-onset gynaecological cancer - A nationwide cohort study. BJOG: An International Journal of Obstetrics and Gynaecology s. 1-9. doi: 10.1111/1471-0528.17410
Rachel Bedenis Forster, Anders Engeland, Rune Kvåle, Vidar Hjellvik, Tone Bjørge, (2022). Association between medical androgen deprivation therapy and long-term cardiovascular disease and all-cause mortality in nonmetastatic prostate cancer. International Journal of Cancer s. 1109-1119. doi: 10.1002/ijc.34058
Kristin Holvik, Vidar Hjellvik, Øystein Karlstad, Nina Gunnes, Mari Hoff, Grethe Seppola Tell, Haakon Eduard Meyer, (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 s. 1-11. doi: 10.1136/bmjopen-2021-057823
Anne Efjestad, Hege Ihle-Hansen, Vidar Hjellvik, Knut Engedal, Hege Salvesen Blix, (2022). Use of Drugs With Risk of Heart Rate-Related Problems is Common in Norwegian Dementia Patients Treated With Acetylcholinesterase Inhibitors: A Prevalence Study Based on the Norwegian Prescription Database . Frontiers in Pharmacology s. 1-12. doi: 10.3389/fphar.2021.791578
Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Petter Chr. Borchgrevink, Thomas Clausen, Ragnar Nesvåg, Svetlana Ondrasova Skurtveit, (2022). Vedvarende bruk av opioider og samtidig bruk av andre vanedannende legemidler. Tidsskrift for Den norske legeforening s. 1-8. doi: 10.4045/tidsskr.21.0659
Aleksi Hamina, Vidar Hjellvik, Marte Handal, Ingvild Odsbu, Thomas Clausen, Svetlana Ondrasova Skurtveit, (2022). Describing long-term opioid use utilizing Nordic Prescription Registers - A Norwegian example. Basic & Clinical Pharmacology & Toxicology s. 481-491. doi: 10.1111/bcpt.13706
Marit Rønning, Vidar Hjellvik, Solveig Sakshaug, Hege Salvesen Blix, Karsten Midtvedt, Anna Varberg Reisæter, Hallvard Holdaas, Anders Åsberg, (2022). Use of Statins in Kidney Transplant Recipients in Norway . International Journal of Environmental Research and Public Health doi: 10.3390/ijerph19031370
Oskar Halfdanarson, Jacqueline Mallory Cohen, Øystein Karlstad, Carolyn E. Cesta, Marte-Helene Bjørk, Siri Eldevik Håberg, Kristjana Einarsdottir, Kari Furu, Mika Gissler, Vidar Hjellvik, Helle Kieler, Maarit Leinonen, Mette Nørgaard, Buket Öztürk Essen, Sinna Pilgaard Ulrichsen, Johan Reutfors, Helga Zoega, (2021). Antipsychotic use in pregnancy and risk of attention/deficit-hyperactivity disorder and autism spectrum disorder: a Nordic cohort study. Evidence-Based Mental Health s. 54-62. doi: 10.1136/ebmental-2021-300311
Jacqueline Mallory Cohen, Carolyn E. Cesta, Lars Jøran Kjerpeseth, Maarit K. Leinonen, Oskar Halfdanarson, Øystein Karlstad, Pär Karlsson, Morten Andersen, Kari Furu, Vidar Hjellvik, (2021). A common data model for harmonization in the Nordic Pregnancy Drug Safety Studies (NorPreSS). Norsk Epidemiologi s. 117-135. doi: 10.5324/nje.v29i1-2.4053
Jørgen G. Bramness, Vidar Hjellvik, Audun Stubhaug, Svetlana Skurtveit, (2021). Possible opioid-saving effect of cannabis-based medicine using individual-based data from the Norwegian Prescription Database. Basic & Clinical Pharmacology & Toxicology s. 1-9. doi: 10.1111/bcpt.13660
Kari Furu, Ellen Barth Aares, Vidar Hjellvik, Øystein Karlstad, (2021). Hormonal contraceptive use in Norway, 2006-2020, by contraceptive type, age and county: A nationwide register-based study. Norsk Epidemiologi s. 55-62. doi: 10.5324/nje.v29i1-2.4046
Anne Efjestad, Hege Ihle-Hansen, Vidar Hjellvik, Knut Engedal, Hege Salvesen Blix, (2021). Sex differences in psychotropic and analgesic drug use before and after initiating treatment with acetylcholinesterase inhibitors. PLOS ONE doi: 10.1371/journal.pone.0243804
Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Petter Chr. Borchgrevink, Thomas Clausen, Aleksi Hamina, Torgeir Gilje Lid, Ragnar Nesvåg, Svetlana Ondrasova Skurtveit, (2021). Bruk av andre vanedannende legemidler blant opioidbrukere med langvarige smerter. Norsk Epidemiologi s. 45-53. doi: 10.5324/nje.v29i1-2.4045
Olav Magnus Fredheim, Svetlana Ondrasova Skurtveit, Per Sjøgren, Mohammad Belal Aljabri, Vidar Hjellvik, (2021). Prescriptions of analgesics during chronic cancer disease trajectories: A complete national cohort study. Pharmacoepidemiology and Drug Safety s. 1504-1513. doi: 10.1002/pds.5329
Anders Engeland, Sara Ghaderi, Isabel dos-Santos-Silva, Kari Furu, Vidar Hjellvik, Rune Kvåle, Tone Bjørge, (2021). Prescribed drugs in 27 000 individuals after diagnosis of colorectal cancer: A population-based cohort study. Pharmacoepidemiology and Drug Safety s. 1037-1048. doi: 10.1002/pds.5243
Beate Oerbeck, Kristin Romvig Overgaard, Vidar Hjellvik, Lars Lien, Jørgen G Bramness, (2021). The Use of Antidepressants, Antipsychotics, and Stimulants in Youth Residential Care. Journal of child and adolescent psychopharmacology s. 350-357. doi: 10.1089/cap.2020.0123
Wenche Nystad, Vidar Hjellvik, Inger Kristin Larsen, Inger Kristine Holtermann Ariansen, Eyvind Helland, Knut Ivar Johansen, Johanne Gulbrandsen, Hanne Løvdal Gulseth, Helena Niemi Eide, Siri Eldevik Håberg, Øystein Karlstad, Inger Johanne Bakken, (2020). Underlying conditions in adults with COVID-19. Tidsskrift for Den norske legeforening doi: 10.4045/tidsskr.20.0512
Ketil Størdal, Inger Johanne Landsjøåsen Bakken, Margrethe Greve-Isdahl, Claus Klingenberg, Eyvind Helland, Wenche Nystad, Vidar Hjellvik, Hanne Løvdal Gulseth, (2020). Sars-CoV-2 hos barn og ungdom i Norge: Påvist smitte, sykehusinnleggelser og underliggende tilstander. Tidsskrift for Den norske legeforening s. 1-9. doi: 10.4045/tidsskr.20.0457
Milada Mahic, Sonia Hernandez-Diaz, Mollie Wood, Helle Kieler, Ingvild Odsbu, Mette Nørgaard, Buket Öztürk, Brian T. Bateman, Vidar Hjellvik, Svetlana Skurtveit, Marte Handal, (2020). In utero opioid exposure and risk of infections in childhood: A multinational Nordic cohort study. Pharmacoepidemiology and Drug Safety s. 1596-1604. doi: 10.1002/pds.5088
Svetlana Skurtveit, Vidar Hjellvik, Solveig Sakshaug, Petter Chr. Borchgrevink, Børge Myrlund Larsen, Thomas Clausen, Eva Skovlund, Emilie Elise Heggen, Marte Handal, (2020). Forskrivning av opioider på blå resept mot langvarige smerter. Tidsskrift for Den norske legeforening doi: 10.4045/tidsskr.20.0153
Yury Kiselev, Marte Handal, Vidar Hjellvik, Ted Reichborn-Kjennerud, Camilla Stoltenberg, Pål Suren, Alexandra Havdahl, Svetlana Skurtveit, (2020). Nationwide study of neuropsychiatric comorbidity and medicines use in children with autism spectrum disorder in Norway. Frontiers in Psychiatry s. 1-8. doi: 10.3389/fpsyt.2020.596032
Ingvild Holdø, Jørgen Gustav Bramness, Marte Handal, Berit Hjelde Hansen, Vidar Hjellvik, Svetlana Skurtveit, (2020). Association Between Prescribed Hypnotics in Infants and Toddlers and Later ADHD: A Large Cohort Study from Norway. Child Psychiatry and Human Development doi: 10.1007/s10578-020-01039-9
Olav Magnus Fredheim, Svetlana Skurtveit, Jon Håvard Loge, Per Sjøgren, Marte Handal, Vidar Hjellvik, (2020). Prescription of analgesics to long-term survivors of cancer in early adulthood, adolescence and childhood in Norway: a national cohort study. Pain s. 1083-1091. doi: 10.1097/j.pain.0000000000001800
Beate Ørbeck, Kristin Romvig Øvergaard, Vidar Hjellvik, Jørgen Gustav Bramness, Berit M Hjelde Hansen, Lars Lien, (2020). The Use of Sleep Medication in Youth Residential Care. Journal of child and adolescent psychopharmacology s. 335-341. doi: 10.1089/cap.2019.0172
Anne Efjestad, Hege Ihle-Hansen, Vidar Hjellvik, Knut Engedal, Hege Salvesen Blix, (2019). Drug Use before and after Initiating Treatment with Acetylcholinesterase Inhibitors. Dementia and Geriatric Cognitive Disorders Extra s. 196-206. doi: 10.1159/000497307
Vidar Hjellvik, Marie L. de Bruin, Sven Ove Samuelsen, Øystein Karlstad, Morten Andersen, Jari Haukka, Peter Vestergaard, Frank de Vries, Kari Furu, (2019). Adjusting for unmeasured confounding using validation data: Simplified two-stage calibration for survival and dichotomous outcomes. Statistics in Medicine doi: 10.1002/sim.8131
Olav Magnus Fredheim, Svetlana Skurtveit, Marte Handal, Vidar Hjellvik, (2019). A complete national cohort study of prescriptions of analgesics and benzodiazepines to cancer survivors in Norway 10 years after diagnosis. Pain s. 852-859. doi: 10.1097/j.pain.0000000000001459
Marta Ebbing, Anne Reneflot, Vidar Hjellvik, Øyvind Næss, Helle Margrete Meltzer, (2018). Kunnskapskilder for folkehelse.
Ragnar Nesvåg, Jørgen Gustav Bramness, Marte Handal, Ingeborg Hartz, Vidar Hjellvik, Svetlana Skurtveit, (2018). The incidence, psychiatric co-morbidity and pharmacological treatment of severe mental disorders in children and adolescents. European psychiatry s. 16-22. doi: 10.1016/j.eurpsy.2017.12.009
Anders Engeland, Tone Bjørge, Kari Klungsøyr, Vidar Hjellvik, Svetlana Skurtveit, Kari Furu, (2018). Trends in prescription drug use during pregnancy and postpartum in Norway, 2005 to 2015. Pharmacoepidemiology and Drug Safety s. 995-1004. doi: 10.1002/pds.4577
Svetlana Skurtveit, Jørgen Gustav Bramness, Vidar Hjellvik, Ingeborg Hartz, Ragnar Nesvåg, Lars Johan Hauge, Marte Handal, (2018). Increase in diagnosis of depressive disorders contributes to the increase in antidepressant use in adolescents. Acta Psychiatrica Scandinavica s. 413-421. doi: 10.1111/acps.12877
Anne Efjestad, Hege Ihle-Hansen, Vidar Hjellvik, Hege Salvesen Blix, (2017). Comedication and treatment length in users of acetylcholinesterase inhibitors. Dementia and Geriatric Cognitive Disorders Extra s. 30-40. doi: 10.1159/000454948
Anna But, Marie L de Bruin, Marloes T Bazelier, Vidar Hjellvik, Morten Andersen, Anssi Auvinen, Jakob Starup-Linde, Marjanka K Schmidt, Kari Furu, Frank de Vries, Øystein Karlstad, Nils Ekström, Jari Haukka, (2017). Cancer risk among insulin users: comparing analogues with human insulin in the CARING five-country cohort study. Diabetologia s. 1691-1703. doi: 10.1007/s00125-017-4312-5
Solveig Sakshaug, Marte Handal, Vidar Hjellvik, Christian Lie Berg, Åse Ripel, Ingebjørg G. Gustavsen, Jørg Mørland, Svetlana Skurtveit, (2017). Long-term Use of Z-Hypnotics and Co-Medication with Benzodiazepines and Opioids. Basic & Clinical Pharmacology & Toxicology s. 292-298. doi: 10.1111/bcpt.12684
Ragnar Nesvåg, Ingeborg Hartz, Jørgen Gustav Bramness, Vidar Hjellvik, Marte Handal, Svetlana Skurtveit, (2016). Mental disorder diagnoses among children and adolescents who use antipsychotic drugs. European Neuropsychopharmacology s. 1412-1418. doi: 10.1016/j.euroneuro.2016.07.001
Ingeborg Hartz, Svetlana Skurtveit, Vidar Hjellvik, Kari Furu, Ragnar Nesvåg, Marte Handal, (2016). Antidepressant drug use among adolescents during 2004–2013: a population-based register linkage study. Acta Psychiatrica Scandinavica s. 420-429. doi: 10.1111/acps.12633
Marte Handal, Solveig Sakshaug, Vidar Hjellvik, Christian Lie Berg, Svetlana Skurtveit, (2015). Kjønnsforskjeller i bruk av vanedannende legemidler i Norge. Norsk Farmaceutisk Tidsskrift s. 27-31.
Hege Salvesen Blix, DIDRIK FRIMANN VESTRHEIM, Vidar Hjellvik, Dagfinn Skaare, Andreas Christensen, Martin Steinbakk, (2015). Antibiotic prescriptions and cycles of Mycoplasma pneumoniae infections in Norway: can a nationwide prescription register be used for surveillance?. Epidemiology and Infection s. 1884-1892. doi: 10.1017/S0950268814002908
Bjørn Heine Strand, Ellen Melbye Langballe, Vidar Hjellvik, Marte Handal, Øyvind Næss, Gun Peggy Knudsen, Helga Refsum, Kristian Tambs, Per Nafstad, Henrik Schirmer, Astrid Liv Mina Bergem, Randi Selmer, Knut Arne Engedal, Per Magnus, Espen Bjertness, (2013). Midlife vascular risk factors and their association with dementia deaths: Results from a Norwegian prospective study followed up for 35 years. Journal of Neurological Sciences s. 124-130. doi: 10.1016/j.jns.2012.10.018
Øystein Karlstad, Jakob Starup-Linde, Peter Vestergaard, Vidar Hjellvik, Marloes T Bazelier, Marjanka K Schmidt, Morten Andersen, Anssi Auvinen, Jari Haukka, Kari Furu, Frank de Vries, Marie L De Bruin, (2013). Use of insulin and insulin analogs and risk of cancer - systematic review and meta-analysis of observational studies. Current Drug Safety s. 333-348. doi: 10.2174/15680266113136660067
Jakob Starup-Linde, Øystein Karlstad, Stine Aistrup Eriksen, Peter Vestergaard, Heleen K Bronsveld, Frank de Vries, Morten Andersen, Anssi Auvinen, Jari Haukka, Vidar Hjellvik, Marloes T Bazelier, Anthonius de Boer, Kari Furu, Marie L De Bruin, (2013). CARING (CAncer Risk and INsulin analoGues): the association of diabetes mellitus and cancer risk with focus on possible determinants - a systematic review and a meta-analysis. Current Drug Safety s. 296-332. doi: 10.2174/15748863113086660071
Vidar Hjellvik, Randi Selmer, Håkon K. Gjessing, Aage Tverdal, Stein Emil Vollset, (2013). Body mass index, smoking, and risk of death between 40 and 70 years of age in a Norwegian cohort of 32,727 women and 33,475 men. European Journal of Epidemiology (EJE) s. 35-43. doi: 10.1007/s10654-012-9758-7
Vidar Hjellvik, Solveig Sakshaug, Hanne Strøm, (2012). Body mass index, triglycerides, glucose, and blood pressure as predictors of type 2 diabetes in a middle-aged Norwegian cohort of men and women. Clinical Epidemiology s. 213-224. doi: 10.2147/CLEP.S31830
Vidar Hjellvik, Knut Arne Engedal, Marte Handal, Trond Peder Flaten, Ellen Melbye Langballe, Randi Selmer, Bjørn Heine Strand, (2012). Dementia in the National Cause of Death Registry in Norway 1969-2010. Norsk Epidemiologi s. 217-224. doi: 10.5324/nje.v22i2.1569
Hege Salvesen Blix, Vidar Hjellvik, (2012). Økt bruk av antibiotika blant 19-åringer i mai. Tidsskrift for Den norske legeforening s. 1084-1088. doi: 10.4045/tidsskr.11.1122
Vidar Hjellvik, Milada Mahic, Aage Tverdal, (2012). Utdanning og legemiddelbruk. Tidsskrift for Den norske legeforening s. 2166-2170. doi: 10.4045/tidsskr.11.1431
Hege Salvesen Blix, Vidar Hjellvik, Irene Litleskare, Marit Rønning, Aage Tverdal, (2011). Cigarette smoking and risk of subsequent use of antibacterials: a follow-up of 365117 men and women. Journal of Antimicrobial Chemotherapy s. 2159-2167. doi: 10.1093/jac/dkr273
Aage Tverdal, Vidar Hjellvik, Randi Marie Selmer, (2011). Coffee intake and oral-oesophageal cancer: follow-up of 389 624 Norwegian men and women 40-45 years. British Journal of Cancer s. 157-161. doi: 10.1038/bjc.2011.192
Vidar Hjellvik, Aage Tverdal, Hanne Strøm, (2011). Boiled Coffee Intake and Subsequent Risk for Type 2 Diabetes. Epidemiology s. 418-421. doi: 10.1097/EDE.0b013e31821083e3
Vidar Hjellvik, Aage Tverdal, Kari Furu, (2010). Body mass index as predictor for asthma: a cohort study of 118,723 males and females. European Respiratory Journal s. 1235-1242. doi: 10.1183/09031936.00192408
Anne Gerd Granås, Christian Lie Berg, Vidar Hjellvik, Cecilie Haukereid, Arvid Kronstad, Hege Salvesen Blix, Bente Kilhovd, Kirsten K Viktil, Anne Marie Horn, (2010). Evaluating categorisation and clinical relevance of drug-related problems in medication reviews. Pharmacy World & Science (PWS) s. 394-403. doi: 10.1007/s11096-010-9385-x
Jørgen G. Bramness, Fredrik A Walby, Vidar Hjellvik, Randi Marie Selmer, Aage Tverdal, (2010). Self-reported mental health and its gender differences as a predictor of suicide in the middle-aged. American Journal of Epidemiology s. 160-166. doi: 10.1093/aje/kwq091
Aage Tverdal, Vidar Hjellvik, Randi Marie Selmer, (2008). Heart rate and mortality from cardiovascular causes: a 12 year follow-up study of 379 843 men and women aged 40-45 years. European Heart Journal s. 2772-2781. doi: 10.1093/eurheartj/ehn435
Vidar Hjellvik, Dag Bjarne Tjøstheim, Olav Rune Godø, (2007). Can the precision of bottom trawl indices be increased by using simultaneously collected acoustic data? The Barents Sea experience. Canadian Journal of Fisheries and Aquatic Sciences s. 1390-1402. doi: 10.1139/F07-101
Anders Løland, Magne Aldrin, Egil Ona, Vidar Hjellvik, Jens Christian Holst, (2007). Estimating and decomposing total uncertainty for survey-based abundance estimates of Norwegian spring-spawning herring. ICES Journal of Marine Science
Vidar Hjellvik, Olav Rune Godø, Dag Bjarne Tjøstheim, (2004). Diurnal variation in acoustic densities: why do we see less in the dark?. Canadian Journal of Fisheries and Aquatic Sciences s. 2237-2254.
Vidar Hjellvik, Rong Chen, Dag Bjarne Tjøstheim, (2004). Nonparametric estimation and testing in panels of intercorrelated time series. Journal of Time Series Analysis s. 831-872.
Vidar Hjellvik, Olav Rune Godø, Dag Bjarne Tjøstheim, (2004). Decomposing and explaining the variability of bottom trawl survey data from the Barents Sea. Sarsia s. 196-210.
Vidar Hjellvik, Olav Rune Godø, Dag Bjarne Tjøstheim, (2002). Modelling diurnal variation in bottom trawl survey catches: does it pay to adjust?. Canadian Journal of Fisheries and Aquatic Sciences s. 33-48.
Vidar Hjellvik, Olav Rune Godø, Dag Bjarne Tjøstheim, (2002). The measurement error of marine survey registrations: the bottom trawl case. Fishery Bulletin
Vidar Hjellvik, Olav Rune Godø, Dag Tjostheim, (2001). Modelling diurnal variations in marine populations. Biometrics s. 189-196.
Vidar Hjellvik, Dag Bjarne Tjøstheim, (1999). Residual variance estimates and order determination in panels of intercorrelated time series. s. 385-409.
Vidar Hjellvik, Dag Bjarne Tjøstheim, (1999). Modeling panels of intercorrelated autoregressive time series. Biometrika s. 572-590.
Vidar Hjellvik, Q. Yao, Dag Bjarne Tjøstheim, (1998). Local polynomial approximation and linearity testing. Journal of Statistical Planning and Inference s. 295-321.
Vidar Hjellvik, Dag Bjarne Tjøstheim, (1996). Nonparametric statistics for testing linearity and serial independence. Nonparametric Statistics s. 223-251.
Dag Bjarne Tjøstheim, Vidar Hjellvik, (1995). Nonparametric tests of linearity for time series. Biometrika s. 351-368.

Christian Lie Berg, Hege Salvesen Blix, Olaug Sveinsgjerd Fenne, Kari Furu, Vidar Hjellvik, Kari Jansdotter Husabø, Irene Litleskare, Marit Rønning, Solveig Sakshaug, Randi Marie Selmer, Anne-Johanne Søgaard, Sissel Marie Torheim,
Kari Furu, Vidar Hjellvik, Ingeborg Hartz, Øystein Karlstad, Svetlana Skurtveit, Hege Salvesen Blix, Hanne Strøm, Randi Marie Selmer, (2018). Legemiddelbruk hos barn og unge i Norge 2008–2017
Jørgen Bramnes, Lena Catherine Lossius Westby, Vidar Hjellvik, Halvor Fauske, Lars Lien, (2018). Legemidler og deres håndtering i barnverninstitusjoner
Christian Lie Berg, Hege Salvesen Blix, Olaug Sveinsgjerd Fenne, Kari Furu, Vidar Hjellvik, Kari Jansdotter Husabø, Per Olav Kormeset, Solveig Sakshaug, Hanne Strøm, Sissel Marie Torheim, (2017). Reseptregisteret 2012–2016 / The Norwegian Prescription Database 2012–2016
Svetlana Ondrasova Skurtveit, Solveig Sakshaug, Vidar Hjellvik, Christian Lie Berg, Marte Handal, (2014). Bruk av vanedannende legemidler i Norge 2005 - 2013. Basert på data fra Reseptregisteret
Marit Rønning, Vidar Hjellvik, Christian Lie Berg, Milada Mahic, Aage Tverdal, (2009). Kartlegging og vurdering av sosiale ulikheter i tilgangen til legemidler på blå resept
Vidar Hjellvik, (1997). Nonparametric tests of linearity for time series and panels of time se ries

Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Sonia Hernandez-Diaz, Helle Kieler, Mette Nørgaard, Svetlana Ondrasova Skurtveit, Buket Ozturk Esen, Milada Mahic, (2023). Prenatal opioid exposure and risk of asthma in childhood: a population-based study from Denmark, Norway, and Sweden. Frontiers in Pharmacology doi: 10.3389/fphar.2023.1056192
Aleksi Hamina, Ingvild Odsbu, Petter Chr. Borchgrevink, Li-Chia Chen, Thomas Clausen, Ketil Arne Espnes, Kine Gjesdal, Marte Handal, Sirpa Hartikainen, Vidar Hjellvik, Marianne Therese Smogeli Holter, Trond Høibø, Geana Paula Kurita, Harald Chr. Langaas, Torgeir Gilje Lid, Torunn Hatlen Nøst, Per Sjøgren, Svetlana Ondrasova Skurtveit, (2022). Cohort Description: Preventing an Opioid Epidemic in Norway – Focusing on Treatment of Chronic Pain (POINT) – A National Registry-Based Study. Clinical Epidemiology s. 1477-1486. doi: 10.2147/CLEP.S382136
Aleksi Hamina, Ingvild Odsbu, Vidar Hjellvik, Linn Gjersing, Torgeir Gilje Lid, Thomas Clausen, Svetlana Ondrasova Skurtveit, (2022). Fatal overdoses in a cohort of chronic pain patients.
Kristin Holvik, Vidar Hjellvik, Øystein Karlstad, Nina Gunnes, Mari Hoff, Grethe S. Tell, Haakon Eduard Meyer, (2022). Implementing a medication-based index to account for comorbidity in pharmacoepidemiologic studies: The Rx-Risk Comorbidity Index.
Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Svetlana Ondrasova Skurtveit, (2021). Trends in long-term use of prescribed opioids in Norway 2010-2019. Pharmacoepidemiology and Drug Safety s. 53-53. doi: 10.1002/pds.5305
Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Svetlana Ondrasova Skurtveit, (2021). Trends in long-term use of prescribed opioids in Norway 2010-2019.
Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Svetlana Ondrasova Skurtveit, (2021). Trends in long-term use of prescribed opioids in Norway 2010-2019. .
Trine Elisabeth Finnes, Vidar Hjellvik, Haakon Eduard Meyer, Kristin Holvik, (2021). Are High-Dose Statin Users at Higher Risk of Hip Fractures? A Population-Wide Registry-Based Cohort Study from NOREPOS. Journal of Bone and Mineral Research s. 306-306.
Kristin Holvik, Vidar Hjellvik, Øystein Karlstad, Nina Gunnes, Mari Hoff, Grethe Seppola Tell, Haakon Eduard Meyer, (2020). The contribution of an extensive medication-based comorbidity index to explain excess mortality after hip fracture in Norway. Therapeutic Advances in Musculoskeletal Disease (TAMD) s. 53-53. doi: 10.1177/1759720X20969289
Svetlana Skurtveit, Yury Kiselev, Marte Handal, Camilla Stoltenberg, Ted Reichborn-Kjennerud, Pål Suren, Alexandra Havdahl, Vidar Hjellvik, (2019). Co-Occurring Neuropsychiatric Diagnoses and Use of Psychotropic Drugs in Children with Autism Spectrum Disorder. Pharmacoepidemiology and Drug Safety doi: 10.10002/pds.4864
Svetlana Skurtveit, Jørgen Gustav Bramness, Vidar Hjellvik, Ingeborg Hartz, Ragnar Nesvåg, Lars Johan Hauge, Marte Handal, (2018). Increase in diagnosis of depressive disorders contributes to the increase in antidepressant use in adolescents. Pharmacoepidemiology and Drug Safety
Ingvild Holdø, Jørgen Gustav Bramness, Marte Handal, Berit Marina Hjelde Hansen, Vidar Hjellvik, Svetlana Skurtveit, (2017). Infants With dispensed hypnotics have a greater risk of developing hyperkinetic disorder in School age.
Ingvild Holdø, Jørgen Gustav Bramness, Svetlana Skurtveit, Marte Handal, Berit Hjelde Hansen, Vidar Hjellvik, (2017). Infants with Sleep Problems have a Greater Risk of Developing ADHD in school age.
Marte Handal, Milada Mahic, Vidar Hjellvik, Ingunn Olea Lund, Inger Øhman, Birgitta Norstedt Wikner, Helle Kieler, Mette Nørgaard, Sonia Hernandez-Diaz, Jørgen Gustav Bramness, Edle Ravndal, Erja Halmesmaki, Svetlana Skurtveit, (2016). Background and design: A Scandinavian cohort of pregnant women in opioid maintenance treatment during pregnancy: long term consequences for the child (ScopeOMT).
Ingeborg Hartz, Svetlana Skurtveit, Vidar Hjellvik, Kari Furu, Ragnar Nesvåg, Marte Handal, (2016). Antidepressant Drug use Among Adolescents in Norway from 2004 to 2013‐ A Population‐Based Register Study. Pharmacoepidemiology and Drug Safety
Ragnar Nesvåg, Ingeborg Hartz, Jørgen Gustav Bramness, Vidar Hjellvik, Marte Handal, Svetlana Skurtveit, (2016). Differences Between Genders in Antipsychotic Medication Among Children and Adolescents – Patterns in Use and Underlying Mental Disorders. Pharmacoepidemiology and Drug Safety
Marte Handal, Milada Mahic, Vidar Hjellvik, Ingunn Olea Lund, Inger Øhman, Birgitta Nordstedt Wikner, Helle Kieler, Mette Nørgaard, Sonia Hernandez-Diaz, Jørgen Gustav Bramness, Edle Ravndal, Erja Halmesmæki, Svetlana Skurtveit, (2016). Background and design: A Scandinavian cohort of pregnant women in opioid maintenance treatment during pregnancy: long term consequences for the child (ScopeOMT).
Ingeborg Hartz, Svetlana Skurtveit, Vidar Hjellvik, Kari Furu, Ragnar Nesvåg, Marte Handal, (2015). Antidepressant drug use among adolescents during 2004-2013 – a population-based linkage study between the Nationwide prescription database and patient register . Norsk Epidemiologi, Supplement s. 95-95.
Christian Lie Berg, Svetlana Skurtveit, Solveig Sakshaug, Vidar Hjellvik, Marte Handal, (2015). Reduced Prescribing of Benzodiazepines in Denmark and Norway. Basic & Clinical Pharmacology & Toxicology s. 457-458. doi: 10.1111/bcpt.12377
Vidar Hjellvik, Marte Handal, Svetlana Skurtveit, Ingeborg Hartz, (2011). The relationship between unfavourable lifestyle in the ages 13-25 and subsequent use of potentially addictive prescription drugs in Norwegian men and women. Norsk Epidemiologi, Supplement s. 25-25.
Vidar Hjellvik, Marte Handal, Svetlana Skurtveit, Ingeborg Hartz, (2011). The relationship between unfavourable lifestyle in the ages 13-25 and subsequent use of potentially addictive prescription drugs in Norwegian men and women.
Vidar Hjellvik, Marte Handal, Svetlana Skurtveit, Ingeborg Hartz, (2011). The Relationship between Unfavourable Behaviour in the Ages 13-25 and Subsequent Use of Potentially Addictive Prescription Drugs in Norwegian Men and Women. Pharmacoepidemiology and Drug Safety s. S110-S111.
Vidar Hjellvik, Randi Marie Selmer, Hege Salvesen Blix, Solveig Sakshaug, Aage Tverdal, (2009). Persistence of statin treatment by socioeconomic status. Pharmacoepidemiology and Drug Safety doi: 10.1002/pds
Hege Salvesen Blix, Vidar Hjellvik, Irene Litleskare, Marit Rønning, Aage Tverdal, (2009). Is cigarette smoking a risk factor for subsequent use of antibiotics?. Pharmacoepidemiology and Drug Safety s. S98-S99. doi: 10.1002/pds.1806
Vidar Hjellvik, Randi Marie Selmer, Hege Salvesen Blix, Solveig Sakshaug, Aage Tverdal, (2009). Persistence of antihypertensive therapy by socioeconomic status. Pharmacoepidemiology and Drug Safety s. S131-S132. doi: 10.1002/pds

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