| The longitudinal integrated database for health insurance and labour market studies (LISA) and its use in medical research JF Ludvigsson, P Svedberg, O Olén, G Bruze, M Neovius European journal of epidemiology 34, 423-437, 2019 | 785 | 2019 |
| Colorectal cancer in ulcerative colitis: a Scandinavian population-based cohort study O Olén, R Erichsen, MC Sachs, L Pedersen, J Halfvarson, J Askling, ... The Lancet 395 (10218), 123-131, 2020 | 375 | 2020 |
| Internet-delivered cognitive behavior therapy for children and adolescents: a systematic review and meta-analysis S Vigerland, F Lenhard, M Bonnert, M Lalouni, E Hedman, J Ahlen, ... Clinical psychology review 50, 1-10, 2016 | 304 | 2016 |
| Sex-based differences in incidence of inflammatory bowel diseases—pooled analysis of population-based studies from western countries SC Shah, H Khalili, C Gower-Rousseau, O Olen, EI Benchimol, E Lynge, ... Gastroenterology 155 (4), 1079-1089. e3, 2018 | 247 | 2018 |
| Incidence and treatment of patients diagnosed with inflammatory bowel diseases at 60 years or older in Sweden ÅH Everhov, J Halfvarson, P Myrelid, MC Sachs, C Nordenvall, ... Gastroenterology 154 (3), 518-528. e15, 2018 | 205 | 2018 |
| Antibiotic use and the development of inflammatory bowel disease: a national case-control study in Sweden LH Nguyen, AK Örtqvist, Y Cao, TG Simon, B Roelstraete, M Song, ... The lancet Gastroenterology & hepatology 5 (11), 986-995, 2020 | 188 | 2020 |
| The genetic influence on diverticular disease–a twin study J Granlund, T Svensson, O Olén, F Hjern, NL Pedersen, PKE Magnusson, ... Alimentary pharmacology & therapeutics 35 (9), 1103-1107, 2012 | 181 | 2012 |
| Adherence to a Mediterranean diet is associated with a lower risk of later-onset Crohn’s disease: results from two large prospective cohort studies H Khalili, N Håkansson, SS Chan, Y Chen, P Lochhead, JF Ludvigsson, ... Gut 69 (9), 1637-1644, 2020 | 180 | 2020 |
| Colorectal cancer in Crohn's disease: a Scandinavian population-based cohort study O Olén, R Erichsen, MC Sachs, L Pedersen, J Halfvarson, J Askling, ... The lancet Gastroenterology & hepatology 5 (5), 475-484, 2020 | 179 | 2020 |
| Childhood onset inflammatory bowel disease and risk of cancer: a Swedish nationwide cohort study 1964-2014 O Olén, J Askling, MC Sachs, P Frumento, M Neovius, KE Smedby, ... Bmj 358, 2017 | 160 | 2017 |
| Validating inflammatory bowel disease (IBD) in the Swedish National Patient Register and the Swedish Quality Register for IBD (SWIBREG) GL Jakobsson, E Sternegård, O Olén, P Myrelid, R Ljung, H Strid, ... Scandinavian journal of gastroenterology 52 (2), 216-221, 2017 | 156 | 2017 |
| Inflammatory bowel disease and Parkinson’s disease: a nationwide Swedish cohort study P Weimers, J Halfvarson, MC Sachs, R Saunders-Pullman, JF Ludvigsson, ... Inflammatory bowel diseases 25 (1), 111-123, 2019 | 155 | 2019 |
| Coeliac disease and risk of sepsis JF Ludvigsson, O Olén, M Bell, A Ekbom, SM Montgomery Gut 57 (8), 1074-1080, 2008 | 148 | 2008 |
| Internet-delivered cognitive behavior therapy for adolescents with irritable bowel syndrome: a randomized controlled trial M Bonnert, O Olén, M Lalouni, MA Benninga, M Bottai, J Engelbrektsson, ... Official journal of the American College of Gastroenterology| ACG 112 (1 …, 2017 | 123 | 2017 |
| Socioeconomic position and education in patients with coeliac disease O Olén, E Bihagen, F Rasmussen, JF Ludvigsson Digestive and Liver Disease 44 (6), 471-476, 2012 | 115 | 2012 |
| Usefulness of symptoms to screen for celiac disease A Rosén, O Sandström, A Carlsson, L Högberg, O Olen, H Stenlund, ... Pediatrics 133 (2), 211-218, 2014 | 101 | 2014 |
| Mortality in adult-onset and elderly-onset IBD: a nationwide register-based cohort study 1964–2014 O Olén, J Askling, MC Sachs, M Neovius, KE Smedby, A Ekbom, ... Gut 69 (3), 453-461, 2020 | 94 | 2020 |
| Coeliac disease and body mass index: a study of two Swedish general population-based registers O Olén, SM Montgomery, C Marcus, A Ekbom, JF Ludvigsson Scandinavian journal of gastroenterology 44 (10), 1198-1206, 2009 | 91 | 2009 |
| Association of childhood-onset inflammatory bowel disease with risk of psychiatric disorders and suicide attempt A Butwicka, O Olén, H Larsson, J Halfvarson, C Almqvist, P Lichtenstein, ... JAMA pediatrics 173 (10), 969-978, 2019 | 89 | 2019 |
| Gastrointestinal infection increases odds of inflammatory bowel disease in a nationwide case–control study JE Axelrad, O Olén, J Askling, B Lebwohl, H Khalili, MC Sachs, ... Clinical Gastroenterology and Hepatology 17 (7), 1311-1322. e7, 2019 | 84 | 2019 |
