Anders Hammerich Riis

  1. Published

    Folic acid supplement use and menstrual cycle characteristics : a cross-sectional study of Danish pregnancy planners. / Cueto, Heidi T; Riis, Anders H; Hatch, Elizabeth E; Wise, Lauren A; Rothman, Kenneth J; Sørensen, Henrik Toft; Mikkelsen, Ellen M.

    In: Annals of Epidemiology, Vol. 25, No. 10, 2015, p. 723-9.e1.

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

  2. Published

    Folic acid supplementation and fecundability : a Danish prospective cohort study. / Cueto, H T; Riis, A H; Hatch, E E; Wise, L A; Rothman, K J; Sørensen, Henrik Toft; Mikkelsen, Ellen Margrethe.

    In: European Journal of Clinical Nutrition, Vol. 70, No. 1, 01.2016, p. 66-71.

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

  3. Published

    Heart failure and mortality within 90 days after hospitalized pneumonia: A population-based cohort study. / Thomsen, Reimar W.; Kasatpibal, N; Riis, Anders; Nørgaard, Mette; Sørensen, Henrik Toft.

    2006. Poster session presented at 16th European Congress of Clinical Microbiology and Infectious Diseases (ECCMID), Nice, France.

    Research output: Contribution to conferencePosterResearch

  4. Published

    Heritability and familial aggregation of diverticular disease : a population-based study of twins and siblings. / Strate, Lisa L; Erichsen, Rune; Baron, John A; Mortensen, Jakob; Pedersen, Jacob Krabbe; Riis, Anders H; Christensen, Kaare; Sørensen, Henrik Toft.

    In: Gastroenterology, Vol. 144, No. 4, 04.2013, p. 736-742.e1.

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

  5. Published

    History of oral contraceptive use and risk of spontaneous abortion. / Hahn, Kristen A; Hatch, Elizabeth E; Rothman, Kenneth J; Mikkelsen, Ellen M; Brogly, Susan B; Sørensen, Henrik Toft; Riis, Anders H; Wise, Lauren A.

    In: Annals of Epidemiology, 14.09.2015.

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

  6. Published

    Impact of Allogeneic Stem Cell Transplantation in First Complete Remission in Acute Myeloid Leukemia : A National Population-Based Cohort Study. / Østgård, Lene Sofie Granfeldt; Lund, Jennifer L; Nørgaard, Jan Maxwell; Nørgaard, Mette; Medeiros, Bruno C; Nielsen, Bendt; Nielsen, Ove Juul; Overgaard, Ulrik Malthe; Kallenbach, Maria; Marcher, Claus Werenberg; Riis, Anders Hammerich; Sengeløv, Henrik.

    In: Biology of Blood and Marrow Transplantation, Vol. 24, No. 2, 24, 02.2018, p. 314-323.

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

  7. Published

    Impact of COPD on outcome among patients with complicated peptic ulcer. / Christensen, Steffen; Thomsen, Reimar W; Tørring, Marie Louise; Riis, Anders; Nørgaard, Mette; Sørensen, Henrik T.

    In: Chest, Vol. 133, No. 6, 2008, p. 1360-6.

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

  8. Published

    Impact of diabetes and poor glycaemic control on risk of bacteraemia with haemolytic streptococci groups A, B, and G. / Thomsen, Reimar Wernich; Riis, Anders Hammerich; Kjeldsen, Sia; Schønheyder, Henrik Carl.

    In: Journal of Infection, Vol. 63, No. 1, 2011, p. 8-16.

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

  9. Published
  10. Published

    Introduction of COX-2 inhibitors did not change hospitalization rates of bleeding and perforated peptic ulcer in Denmark. / Christensen, Steffen; Nørgaard, Mette; Riis, Anders; Thomsen, Reimar W.; Sørensen, Henrik Toft.

    2006. Poster session presented at 22nd International Conference on Pharmacoepidemiology & Therapeutic Risk Management, Lissabon, Portugal.

    Research output: Contribution to conferencePosterResearch

  11. Published

    Introduction of newer selective cyclo-oxygenase-2 inhibitors and rates of hospitalization with bleeding and perforated peptic ulcer. / Christensen, Steffen; Riis, Anders; Nørgaard, Mette; Thomsen, Reimar W.; Sørensen, Henrik Toft.

    In: Alimentary Pharmacology and Therapeutics, Vol. 25, No. 8, 2007, p. 907-13.

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

  12. Published

    Kirurgisk fjernelse af milten og risikoen for efterfølgende infektioner, blodpropper og død : Danmark 1996-2005. / Lietzen, Lone Winther; Jacobsen, Jacob Bonde; Thomsen, Reimar W.; Hammerich Riis, Anders; Nørgaard, Mette.

    Aarhus : Department of Clinical Epidemiology, Aarhus University Hospital, 2013.

    Research output: Book/anthology/dissertation/reportReportCommunication

  13. 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

  14. Published

    Lungebetændelse i Nordjyllands, Viborg og Århus amter 1994-2004 : Forekomst og prognose - et pilotprojekt. / Thomsen, Reimar W.; Riis, Anders; Nørgaard, Mette; Jacobsen, Jacob; Christensen, Steffen; Sørensen, Henrik Toft.

    2005.

    Research output: Book/anthology/dissertation/reportReportResearch

  15. 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

  16. 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

  17. 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

  18. Published

    Mortality Trends among Adults with Pneumococcal Meningitis before and after the Introduction of Adjunctive Corticosteroid Therapy: a Nationwide Population-Based Cohort Study. / Harboe, Z B; Thomsen, Reimar W.; Hammerich Riis, Anders; Konradsen, H B; Benfield, T.

    2010. Poster session presented at 50th Annual Interscience Conference on antimicrobial agents and Chemotherapy (ICAAC), Boston, United States.

    Research output: Contribution to conferencePosterResearchpeer-review

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. Published

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

    2005. Poster session presented at Dansk Anæstesiologisk Selskab, Århus, Denmark.

    Research output: Contribution to conferencePosterResearch

  28. 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

  29. 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

  30. 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

  31. 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

  32. 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

  33. 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

  34. 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

  35. Published

    Preadmission use of antipsychotic drugs was associated with increased short-term mortality after peptic ulcer perforation. / Christiansen, Christian; Christensen, Steffen; Riis, Anders; Thomsen, Reimar Niels Wernich; Tønnesen, Else Kirstine; Sørensen, Henrik Toft.

    2008. Poster session presented at 23rd international Conference for Pharmacoepidemiology and therapeutic risk Management (ICPE), Quebec, Canada.

    Research output: Contribution to conferencePosterResearch

  36. Published

    Preadmission use of statins and mortality within 90 days after hospitalization with pneumonia: population-based cohort study of 29,900 adult patients. / Thomsen, Reimar Niels Wernich; Riis, Anders; Kornum, Jette Brommann; Christensen, Steffen; Johnsen, Søren Paaske; Sørensen, Henrik Toft.

    2008. Poster session presented at 17th European Congress of Clinical Microbiology and Infectious Diseases (ECCMID), München, Germany.

    Research output: Contribution to conferencePosterResearch

  37. 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

  38. Published

    Preadmission use of systemic glucocorticoids and 30-day mortality following bleeding peptic ulcer - A population-based cohort study. / Olsen, Morten Smærup; Christensen, Steffen; Riis, A.; Thomsen, Reimar Niels Wernich; Sørensen, Henrik Toft.

    In: Pharmacoepidemiology and Drug Safety, No. s1, 2008, p. 489.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperConference abstract in journalResearch

  39. 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

  40. 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

  41. 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

  42. Published

    Prognostic impact of haematological and non-haematological malignancies on mortality of hospitalized pneumonia - a Danish population-based cohort study. / Nørgaard, Mette; Riis, Anders; Thomsen, Reimar W.; Schønheyder, H.C.; Sørensen, Henrik Toft.

    2006. Poster session presented at 16th European Congress of Clinical Microbiology and Infectious Diseases (ECCMID), Nice, France.

    Research output: Contribution to conferencePosterResearch

  43. 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

  44. Published

    Randomized trial of questionnaire length. / Rothman, Kenneth J; Mikkelsen, Ellen M; Riis, Anders; Sørensen, Henrik T; Wise, Lauren A; Hatch, Elizabeth E.

    In: Epidemiology, Vol. 20, No. 1, 2009, p. 154.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperLetterResearch

  45. Published

    Randomized trial of the effect of questionnaire length on enrollment and missing data in a web-based cohort study in Denmark. / Rothman, K J; Mikkelsen, Ellen Margrethe; Sørensen, Henrik Toft; Hatch, E; Riis, Anders; Wise, L A.

    2009. Poster session presented at ICN 24th Quadrennial Congress, Durban, South Africa.

    Research output: Contribution to conferencePosterResearch

  46. 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

  47. Published
  48. 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

  49. Published

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

    2006. Poster session presented at 16th European Congress of Clinical Microbiology and Infectious Diseases (ECCMID), Nice, France.

    Research output: Contribution to conferencePosterResearch

  50. 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