Anders Hammerich Riis

  1. Journal article › Research › Peer-reviewed
  2. Published

    Low-Dose Aspirin or Nonsteroidal Anti-inflammatory Drug Use and Colorectal Cancer Risk : A Population-Based, Case-Control Study. / Friis, Søren; Riis, Anders H; Erichsen, Rune; Baron, John A; Sørensen, Henrik T.

    In: Annals of Internal Medicine, Vol. 163, No. 5, 01.09.2015, p. 347-55.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  3. Published

    Male alcohol consumption and fecundability. / Høyer, S; Riis, A H; Toft, G; Wise, L A; Hatch, Elizabeth E; Wesselink, A K; Rothman, Kenneth J; Sørensen, H T; Mikkelsen, E M.

    In: Human reproduction (Oxford, England), Vol. 35, No. 4, 2020, p. 816-825.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  4. Published

    Maternal Recall Error in Retrospectively Reported Time-to-Pregnancy : an Assessment and Bias Analysis. / Radin, Rose G; Rothman, Kenneth J; Hatch, Elizabeth E; Mikkelsen, Ellen M; Sørensen, Henrik Toft; Riis, Anders H; Fox, Matthew P; Wise, Lauren A.

    In: Paediatric and Perinatal Epidemiology (Online), Vol. 29, No. 6, 11.2015, p. 576-88.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  5. Published

    Metformin use and prostate cancer risk. / Preston, Mark A; Riis, Anders H; Ehrenstein, Vera; Breau, Rodney H; Batista, Julie L; Olumi, Aria F; Mucci, Lorelei A; Adami, Hans-Olov; Sørensen, Henrik T.

    In: European Urology, Vol. 66, No. 6, 12.2014, p. 1012-20.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  6. Published

    Mortality risk in splenectomised patients: a Danish population-based cohort study. / Yong, Mellissa; Thomsen, Reimar W; Schoonen, W Marieke; Farkas, Dóra K; Riis, Anders; Fryzek, Jon P; Sørensen, Henrik Toft.

    In: European Journal of Internal Medicine, Vol. 21, No. 1, 2010, p. 12-6.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  7. Published

    Neither long-term statin use nor atherosclerotic disease is associated with risk of colorectal cancer. / Robertson, Douglas J; Riis, Anders Hammerich; Friis, Søren; Pedersen, Lars; Baron, John A; Sørensen, Henrik Toft.

    In: Clinical Gastroenterology and Hepatology, Vol. 8, No. 12, 01.12.2010, p. 1056-61.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  8. Published

    Nitrosatable drug exposure during pregnancy and risk of stillbirth. / Thomsen, Anne Marie L.; Liew, Zeyan; Riis, Anders Hammerich; Stayner, Leslie Thomas; Ramlau-Hansen, Cecilia Høst; Sigsgaard, Torben; Olsen, Jørn.

    In: Pharmacoepidemiology and Drug Safety, Vol. 28, No. 9, 01.09.2019, p. 1204-1210.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  9. Published

    Nontuberculous Pulmonary Mycobacteriosis in Denmark: Incidence and Prognostic Factors. / Andréjak, Claire; Thomsen, Vibeke O; Johansen, Isik S; Riis, Anders; Benfield, Thomas L; Duhaut, Pierre; Sørensen, Henrik T; Lescure, François-Xavier; Thomsen, Reimar W.

    In: American Journal of Respiratory and Critical Care Medicine, Vol. 181, No. 5, 2010, p. 514-21.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  10. Published

    Out-of-hours and weekend admissions to Danish medical departments : admission rates and 30-day mortality for 20 common medical conditions. / Vest-Hansen, Betina; Riis, Anders Hammerich; Sørensen, Henrik Toft; Christiansen, Christian Fynbo.

    In: BMJ Open, Vol. 5, No. 3, 2015, p. e006731.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  11. Published

    Outcome of peptic ulcer bleeding among users of traditional non-steroidal anti-inflammatory drugs and selective cyclo-oxygenase-2 inhibitors. / Thomsen, Reimar W.; Riis, Anders; Christensen, Steffen; McLaughlin, JK; Sørensen, Henrik Toft.

    In: Alimentary Pharmacology and Therapeutics, Vol. 24, 2006, p. 1431-8.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  12. Published

    Perforated peptic ulcer and short-term mortality among tramadol users. / Tørring, Marie Louise; Riis, Anders; Christensen, Steffen; Thomsen, Reimar W.; Jepsen, Peter; Søndergaard, Jens; Sørensen, Henrik Toft.

    In: British Journal of Clinical Pharmacology, Vol. 65, No. 4, 2007, p. 565-572.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  13. Published

    Perforated peptic ulcer: use of pre-admission oral glucocorticoids and 30-day mortality. / Christensen, Steffen; Riis, Anders; Nørgaard, M.; Thomsen, Reimar W.; Tønnesen, Else Kirstine; Larsson, A.; Sørensen, Henrik Toft.

    In: Alimentary Pharmacology and Therapeutics, Vol. 23, 2006, p. 45-52.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  14. Published

    Pneumococcal serotypes and mortality following invasive pneumococcal disease: a population-based cohort study. / Harboe, Zitta B; Thomsen, Reimar W; Riis, Anders; Valentiner-Branth, Palle; Christensen, Jens Jørgen; Lambertsen, Lotte; Krogfelt, Karen A; Konradsen, Helle B; Benfield, Thomas L.

    In: P L o S Medicine, Vol. 6, No. 5, 2009, p. e1000081.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  15. Published

    Population-based study of short- and long-term survival from colorectal cancer in Denmark, 1977-1999. / Iversen, Lene H.; Pedersen, Lars; Riis, Anders; Friis, S; Laurberg, Søren; Sørensen, Henrik Toft.

    In: British Journal of Surgery, Vol. 92, 2005, p. 873-80.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  16. Published

    Pre-admission use of glucocorticoids and 30-day mortality following colorectal cancer surgery : a population-based Danish cohort study. / Ostenfeld, E B; Erichsen, R; Thorlacius-Ussing, O; Riis, A H; Sørensen, H T.

    In: Alimentary Pharmacology and Therapeutics, Vol. 39, No. 8, 04.2014, p. 843-53.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  17. Published

    Pre-gravid oral contraceptive use and time to pregnancy : a Danish prospective cohort study. / Mikkelsen, Ellen M; Riis, Anders H; Wise, Lauren A; Hatch, Elizabeth E; Rothman, Kenneth J; Sørensen, Henrik Toft.

    In: Human reproduction (Oxford, England), Vol. 28, No. 5, 05.2013, p. 1398-405.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  18. Published

    Pre-gravid oral contraceptive use in relation to birth weight : a prospective cohort study. / Hatch, Elizabeth E; Hahn, Kristen A; Mikkelsen, Ellen M; Riis, Anders H; Sorensen, Henrik Toft; Rothman, Kenneth J; Wise, Lauren A.

    In: European Journal of Epidemiology, Vol. 30, No. 11, 11.2015, p. 1199-208.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  19. Published

    Preadmission glucocorticoid use and anastomotic leakage after colon and rectal cancer resections : a Danish cohort study. / Ostenfeld, Eva Bjerre; Erichsen, Rune; Baron, John A; Thorlacius-Ussing, Ole; Iversen, Lene Hjerrild; Riis, Anders H; Sørensen, Henrik Toft; Danish Colorectal Cancer Group.

    In: BMJ Open, Vol. 5, No. 9, 2015, p. e008045.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  20. Published

    Preadmission use of SSRIs alone or in combination with NSAIDs and 30-day mortality after peptic ulcer bleeding. / Gasse, Christiane; Christensen, Steffen; Riis, Anders; Mortensen, Preben B; Adamsen, Sven; Thomsen, Reimar W.

    In: Scandinavian Journal of Gastroenterology, Vol. 44, No. 11, 2009, p. 1288-95.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  21. Published

    Preadmission use of statins and outcomes after hospitalization with pneumonia: population-based cohort study of 29,900 patients. / Thomsen, Reimar W; Riis, Anders; Kornum, Jette B; Christensen, Steffen; Johnsen, Søren P; Sørensen, Henrik T.

    In: Archives of Internal Medicine, Vol. 168, No. 19, 2008, p. 2081-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  22. Published

    Preadmission use of systemic glucocorticoids and 30-day mortality following bleeding peptic ulcer: a population-based cohort study. / Olsen, Morten; Christensen, Steffen; Riis, Anders; Thomsen, Reimar W.

    In: American Journal of Therapeutics, Vol. 17, No. 1, 2010, p. 23-9.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  23. Published

    Predictors and patterns of red blood cell transfusion use among newly diagnosed cancer patients with chemotherapy-associated anemia in Western Denmark (1998-2003). / Yong, Mellissa; Riis, Anders H; Fryzek, Jon P; Møller, Bjarne K; Johnsen, Søren P.

    In: Clinical Epidemiology, Vol. 3, 01.01.2011, p. 91-9.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  24. Published

    Predictors of preconceptional folic acid or multivitamin supplement use : a cross-sectional study of Danish pregnancy planners. / Cueto, Heidi T; Riis, Anders H; Hatch, Elizabeth E; Wise, Lauren A; Rothman, Kenneth J; Mikkelsen, Ellen M.

    In: Clinical Epidemiology, Vol. 4, 2012, p. 259-65.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  25. Published

    Prospective study of time to pregnancy and adverse birth outcomes. / Wise, Lauren A; Mikkelsen, Ellen M; Sørensen, Henrik Toft; Rothman, Kenneth J; Hahn, Kristen A; Riis, Anders H; Hatch, Elizabeth E.

    In: Fertility and Sterility, Vol. 103, No. 4, 04.2015, p. 1065-1073.e2.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  26. Published

    Registration of acute medical hospital admissions in the Danish National Patient Registry : a validation study. / Hansen, Betina; Riis, Anders Hammerich; Christiansen, Christian Fynbo.

    In: Clinical Epidemiology, Vol. 5, 2013, p. 129-33.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  27. Published
  28. Published

    Rising incidence and persistently high mortality of hospitalized pneumonia: 10-year population-based study in Denmark. / Thomsen, Reimar W.; Riis, Anders; Nørgaard, Mette; Jacobsen, Jacob; Christensen, Steffen; McDonald, CJ; Sørensen, Henrik Toft.

    In: Journal of Internal Medicine, Vol. 259, 2006, p. 410-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  29. Published

    Risk factors for revision due to infection after primary total hip arthroplasty. A population-based study of 80,756 primary procedures in the Danish Hip Arthroplasty Registry. / Pedersen, Alma B; Svendsson, Jens E; Johnsen, Søren P; Riis, Anders; Overgaard, Søren.

    In: Acta Orthopaedica (Print Edition), Vol. 81, No. 5, 2010, p. 542-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  30. Published

    Risk for hospital contact with infection in patients with splenectomy: a population-based cohort study. / Thomsen, Reimar W; Schoonen, W Marieke; Farkas, Dóra K; Riis, Anders; Jacobsen, Jacob; Fryzek, Jon P; Sørensen, Henrik Toft.

    In: Annals of Internal Medicine, Vol. 151, No. 8, 2009, p. 546-55.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  31. Published

    Risk of venous thromboembolism in splenectomized patients compared with the general population and appendectomized patients: a 10-year nationwide cohort study. / Thomsen, Reimar W.; Schoonen, W M; Farkas, D K; Riis, A; Fryzek, J P; Sørensen, Henrik Toft.

    In: Journal of Thrombosis and Haemostasis, Vol. 8, No. 6, 2010, p. 1413-6.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  32. Published

    Risk stratification by assessment of coronary artery disease using coronary computed tomography angiography in diabetes and non-diabetes patients : a study from the Western Denmark Cardiac Computed Tomography Registry. / Olesen, Kevin K W; Riis, Anders H; Nielsen, Lene H; Steffensen, Flemming H; Nørgaard, Bjarne L; Jensen, Jesper M; Poulsen, Per L; Thim, Troels; Bøtker, Hans Erik; Sørensen, Henrik T; Maeng, Michael.

    In: European Heart Journal Cardiovascular Imaging, Vol. 20, No. 11, 11.2019, p. 1271-1278.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  33. Published

    Rosiglitazone use and post-discontinuation glycaemic control in two European countries, 2000-2010. / Ehrenstein, V; Hernandez, R K; Ulrichsen, Sinna Pilgaard; Rungby, J; Lash, T L; Riis, A H; Li, L.; Sørensen, Henrik Toft; Jick, S S.

    In: BMJ Open, Vol. 3, No. 9, 2013, p. e003424.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  34. Published

    Seasonal patterns in fecundability in North America and Denmark : a preconception cohort study. / Wesselink, Amelia K.; Wise, Lauren A.; Hatch, Elizabeth E.; Mikkelsen, Ellen M.; Sørensen, Henrik T.; Riis, Anders H.; McKinnon, Craig J.; Rothman, Kenneth J.

    In: Human Reproduction, Vol. 35, No. 3, 2020, p. 565-572.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  35. Published

    Short look-back periods in pharmacoepidemiologic studies of new users of antibiotics and asthma medications introduce severe misclassification. / Riis, Anders Hammerich; Johansen, Martin Berg; Jacobsen, Jacob B; Brookhart, M Alan; Stürmer, Til; Støvring, Henrik.

    In: Pharmacoepidemiology and Drug Safety, Vol. 24, No. 5, 05.2015, p. 478-485.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  36. Published

    Short-term mortality after perforated or bleeding peptic ulcer among elderly patients: a population-based cohort study. / Christensen, Steffen; Hammerich Riis, Anders; Nørgaard, Mette; Sørensen, Henrik Toft; Thomsen, Reimar W.

    In: B M C Geriatrics, Vol. 7, 2007.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  37. Published

    Short-term mortality in relation to age and comorbidity in older adults with community-acquired bacteremia: A population-based cohort study. / Søgaard, Mette; Schønheyder, Henrik C; Riis, Anders; Sørensen, Henrik T; Nørgaard, Mette.

    In: Journal of the American Geriatrics Society, Vol. 56, No. 9, 2008, p. 1593-1600.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  38. Published

    Statin use and risk of amyotrophic lateral sclerosis and other motor neuron disorders. / Sørensen, Henrik Toft; Riis, Anders; Lash, Timothy L; Pedersen, Lars.

    In: Circulation: Cardiovascular Quality and Outcomes, Vol. 3, No. 4, 2010, p. 413-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  39. Published

    Surgical repair of coarctation of the aorta: up to 40 years of follow-up. / Høimyr, Hilde; Christensen, Thomas Decker; Emmertsen, Kristian; Johnsen, Søren Paaske; Riis, Anders; Hansen, Ole Kromann; Hjortdal, Vibeke E.

    In: European Journal of Cardio-Thoracic Surgery, Vol. 30, No. 6, 2006, p. 910-916.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  40. Published

    Survival of primary total hip arthroplasty in rheumatoid arthritis patients. / Rud-Sørensen, Christoffer; Pedersen, Alma B; Johnsen, Søren Paaske; Riis, Anders Hammerich; Overgaard, Søren.

    In: Acta Orthopaedica (Print Edition), Vol. 81, No. 1, 2010, p. 60-5.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  41. Published

    The association of serum lipid levels with colorectal cancer recurrence. / Brantley, Kristen D.; Riis, Anders H.; Erichsen, Rune; Thorlacius-Ussing, Ole; Møller, Holger Jon; Lash, Timothy L.

    In: Cancer epidemiology, Vol. 66, 101725, 2020.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  42. Published

    The impact of pre-existing heart failure on pneumonia prognosis: population-based cohort study. / Thomsen, Reimar W; Kasatpibal, Nongyao; Riis, Anders; Nørgaard, Mette; Sørensen, Henrik T.

    In: Journal of General Internal Medicine, Vol. 23, No. 9, 2008, p. 1407-13.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  43. Published

    The impact of statin use on pneumonia risk and outcome : a combined population-based case-control and cohort study. / Nielsen, Anders Gunnar; Nielsen, Rikke Beck; Riis, Anders Hammerich; Johnsen, Søren Paaske; Sørensen, Henrik Toft; Thomsen, Reimar Wernich.

    In: Critical Care (Online Edition), Vol. 16, No. 4, 2012, p. R122.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  44. Published

    The potential impact of paternal age on risk of asthma in childhood: a study within the Danish National Birth Cohort. / Thomsen, Anne Marie L; Ehrenstein, Vera; Riis, Anders Hammerich; Toft, Gunnar; Mikkelsen, Ellen M; Olsen, Jørn.

    In: Respiratory Medicine, Vol. 137, 04.2018, p. 30-34.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  45. Published

    Thirty-day mortality after peptic ulcer bleeding in hospitalized patients receiving low-dose aspirin at time of admission. / Mose, Hanne; Larsen, Mette; Riis, Anders; Johnsen, Søren Paaske; Thomsen, Reimar W.; Sørensen, Henrik Toft.

    In: The American Journal of Geriatric Pharmacotherapy, Vol. 4, No. 3, 2006, p. 244-50.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  46. Published

    Type 2 diabetes and pneumonia outcomes: a population-based cohort study. / Kornum, Jette Brommann; Thomsen, Reimar W.; Hammerich Riis, Anders; Lervang, H.H.; Schønheyder, Henrik Carl; Sørensen, Henrik Toft.

    In: Diabetes Care, Vol. 30, No. 9, 2007, p. 2251-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  47. Published

    Use of systemic glucocorticoids and the risk of colorectal cancer. / Ostenfeld, E B; Erichsen, R; Thorlacius-Ussing, O; Hammerich Riis, Anders; Sørensen, H T.

    In: Alimentary Pharmacology and Therapeutics, 2013.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  48. Published

    Validating registry data on statins prescriptions by blood measurements. / Riis, Anders H; Erichsen, Rune; Ostenfeld, Eva B; Højskov, Carsten S; Thorlacius-Ussing, Ole; Stender, Mogens Tornby; Lash, Timothy L; Møller, Holger Jon.

    In: Pharmacoepidemiology and Drug Safety, Vol. 28, No. 5, 05.2019, p. 609-615.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  49. Published

    Volitional determinants and age-related decline in fecundability : a general population prospective cohort study in Denmark. / Rothman, Kenneth J; Wise, Lauren A; Sørensen, Henrik T; Riis, Anders H; Mikkelsen, Ellen M; Hatch, Elizabeth E.

    In: Fertility and Sterility, 18.03.2013.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  50. Published

    Weight at birth and subsequent fecundability : a prospective cohort study. / Wildenschild, Cathrine; Riis, Anders H; Ehrenstein, Vera; Heitmann, Berit L; Hatch, Elizabeth E; Wise, Lauren A; Rothman, Kenneth J; Sørensen, Henrik T; Mikkelsen, Ellen M.

    In: PLOS ONE, Vol. 9, No. 4, 2014, p. e95257.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  51. Published

    Weight at birth and subsequent fecundability: a prospective cohort study. / Nielsen, Cathrine Wildenschild ; Hammerich Riis, Anders; Ehrenstein, Vera; Heitmann, Berit Lilienthal; Hatch, Elizabeth E; Wise, Lauren A; Rothman, Kenneth J; Sørensen, Henrik Toft; Mikkelsen, Ellen Margrethe.

    In: P L o S One, 15.04.2014, p. e95257.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review