Search Results - "Olen, O"

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  1. 1

    Childhood onset inflammatory bowel disease and risk of cancer: a Swedish nationwide cohort study 1964-2014 by Olén, O, Askling, J, Sachs, MC, Frumento, P, Neovius, M, Smedby, KE, Ekbom, A, Malmborg, P, Ludvigsson, JF

    Published in BMJ (Online) (20-09-2017)
    “…Objective To assess risk of cancer in patients with childhood onset inflammatory bowel disease in childhood and adulthood.Design Cohort study with matched…”
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    Journal Article
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    Decrease in primary but not in secondary abdominal surgery for Crohn's disease: nationwide cohort study, 1990–2014 by Kalman, T. D., Everhov, Å. H., Nordenvall, C., Sachs, M. C., Halfvarson, J., Ekbom, A., Ludvigsson, J. F., Myrelid, P., Olén, O.

    Published in British journal of surgery (01-10-2020)
    “…Background Treatment of patients with Crohn's disease has evolved in recent decades, with increasing use of immunomodulatory medication since 1990 and…”
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  3. 3

    Incidence and lifetime risk of hospitalization and surgery for diverticular disease by Sköldberg, F., Granlund, J., Discacciati, A., Hjern, F., Schmidt, P. T., Olén, O.

    Published in British journal of surgery (01-06-2019)
    “…Background Studies on incidence rates of first‐time colonic diverticular disease are few, and population‐based estimates of lifetime risk are lacking. In this…”
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  4. 4

    Colectomy prior to diagnosis of primary sclerosing cholangitis is associated with improved prognosis in a nationwide cohort study of 2594 PSC‐IBD patients by Nordenvall, C., Olén, O., Nilsson, P. J., von Seth, E., Ekbom, A., Bottai, M., Myrelid, P., Bergquist, A.

    Published in Alimentary pharmacology & therapeutics (01-01-2018)
    “…Summary Background Despite the close relationship between primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD), the association between…”
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  5. 5

    The genetic influence on diverticular disease - a twin study by Granlund, J., Svensson, T., Olén, O., Hjern, F., Pedersen, N. L., Magnusson, P. K. E., Thelin Schmidt, P.

    Published in Alimentary pharmacology & therapeutics (01-05-2012)
    “…Summary Background The contribution of hereditary factors to the development of diverticular disease (DD) of the colon is unknown. Prevalence and location of…”
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  6. 6

    Anti‐TNF treatment in Crohn's disease and risk of bowel resection—a population based cohort study by Eberhardson, M., Söderling, J. K., Neovius, M., Cars, T., Myrelid, P., Ludvigsson, J. F., Askling, J., Ekbom, A., Olén, O.

    Published in Alimentary pharmacology & therapeutics (01-09-2017)
    “…SUMMARY Background TNF inhibitors (TNFi) have been shown to reduce the need for surgery in Crohn's disease, but few studies have examined their effect beyond…”
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  7. 7

    Real-World Outcomes of Patients Starting Intravenous and Transitioning to Subcutaneous Vedolizumab in Inflammatory Bowel Disease by Lamichhane, N., Melas, N., Bergqvist, V., Ekholm, N.-P., Olén, O., Ludvigsson, J. F., Hjortswang, H., Marsal, J., Eriksson, C., Halfvarson, J.

    Published in Digestive diseases and sciences (2024)
    “…Background Real-world data on starting intravenous (IV) vedolizumab (VDZ) and transitioning to subcutaneous (SC) treatment in inflammatory bowel disease (IBD)…”
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    Validating inflammatory bowel disease (IBD) in the Swedish National Patient Register and the Swedish Quality Register for IBD (SWIBREG) by Jakobsson, Gustav L., Sternegård, Emil, Olén, Ola, Myrelid, Pär, Ljung, Rickard, Strid, Hans, Halfvarson, Jonas, Ludvigsson, Jonas F.

    Published in Scandinavian journal of gastroenterology (01-01-2017)
    “…Background: Both the Swedish National Patient Register (NPR) and the Swedish Quality Register for inflammatory bowel disease (IBD, SWIBREG) are important…”
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  10. 10

    Identification of irritable bowel syndrome in the Swedish National Patient Register: a validation study by Tornkvist, Navkiran T., Backman, Ann-Sofie, Linder, Marie, Altman, Maria, Simrén, Magnus, Olén, Ola, Törnblom, Hans

    “…National patient registers are valuable in epidemiological studies. To ensure high-quality data for studies of irritable bowel syndrome (IBS), this study aimed…”
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  11. 11

    Restorative surgery after colectomy for ulcerative colitis in England and Sweden: observations from a comparison of nationwide cohorts by Worley, G., Nordenvall, C., Askari, A., Pinkney, T., Burns, E., Akbar, A., Olén, O., Ekbom, A., Bottai, M., Myrelid, P., Faiz, O.

    Published in Colorectal disease (01-09-2018)
    “…Aim A longstanding disparity exists between the approaches to restorative surgery after colectomy for patients with ulcerative colitis (UC) in England and…”
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    Journal Article
  12. 12

    Letter: phenotype and natural history of elderly onset inflammatory bowel disease by Everhov, Å. H., Ludvigsson, J. F., Olén, O.

    Published in Alimentary pharmacology & therapeutics (01-05-2018)
    “…Linked Content This article is linked to Mañosa et al and Mañosa and Doménech papers. To view these articles visit https://doi.org/10.1111/apt.14494 and…”
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    Journal Article
  13. 13

    Prevalence of paediatric inflammatory bowel disease in Sweden: a nationwide population-based register study by Ludvigsson, J F, Büsch, K, Olén, O, Askling, J, Smedby, K E, Ekbom, A, Lindberg, E, Neovius, M

    Published in BMC gastroenterology (31-01-2017)
    “…We evaluated the impact of different case definition algorithms on the prevalence of paediatric inflammatory bowel disease (IBD), Crohn's disease (CD) and…”
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  14. 14

    Editorial: importance of definition of inflammatory bowel disease and an increased incidence in children by Everhov, Å. H., Olén, O., Ludvigsson, J. F.

    Published in Alimentary pharmacology & therapeutics (01-05-2017)
    “…Linked ContentThis article is linked to Lophaven et al paper. To view this article visit https://doi.org/10.1111/apt.13971…”
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  15. 15

    Coeliac disease and risk of sepsis by Ludvigsson, J F, Olén, O, Bell, M, Ekbom, A, Montgomery, S M

    Published in Gut (01-08-2008)
    “…To examine the risk of subsequent sepsis in individuals with coeliac disease. We used Swedish national health registers to identify 15 325 individuals with a…”
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  16. 16

    Allergy‐related diseases and recurrent abdominal pain during childhood – a birth cohort study by Olén, O., Neuman, Å., Koopmann, B., Ludvigsson, J. F., Ballardini, N., Westman, M., Melén, E., Kull, I., Simrén, M., Bergström, A.

    Published in Alimentary pharmacology & therapeutics (01-12-2014)
    “…Summary Background Allergy and immune dysregulation may have a role in the pathophysiology of recurrent abdominal pain of functional origin, but previous…”
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  17. 17

    Prevalence and Progression of Recurrent Abdominal Pain, From Early Childhood to Adolescence by Sjölund, Jessica, Uusijärvi, Agneta, Tornkvist, Navkiran T., Kull, Inger, Bergström, Anna, Alm, Johan, Törnblom, Hans, Olén, Ola, Simrén, Magnus

    Published in Clinical gastroenterology and hepatology (01-05-2021)
    “…Little is known about the natural history of childhood recurrent abdominal pain (RAP). We investigated the prevalence and progression of childhood RAP and its…”
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    Identification of Childhood-Onset Inflammatory Bowel Disease in Swedish Healthcare Registers: A Validation Study by Mouratidou, Natalia, Malmborg, Petter, Järås, Jacob, Sigurdsson, Vignir, Sandström, Olof, Fagerberg, Ulrika L, Bröms, Gabriella, Ludvigsson, Jonas F, Olén, Ola

    Published in Clinical epidemiology (01-01-2022)
    “…The Swedish National Patient Register (NPR) is often used in observational studies of childhood-onset inflammatory bowel disease (IBD) (<18 years of age) and…”
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    Use of antibiotics in infancy and childhood and risk of recurrent abdominal pain—a Swedish birth cohort study by Uusijärvi, A., Bergström, A., Simrén, M., Ludvigsson, J. F., Kull, I., Wickman, M., Alm, J., Olén, O.

    Published in Neurogastroenterology and motility (01-06-2014)
    “…Background The etiology of recurrent abdominal pain of functional origin (AP) is largely unknown. Antibiotic treatment influences the intestinal microbiota,…”
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