Anders Hammerich Riis

  1. 2015
  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 2016
  8. 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

  9. Published

    Evaluation of Selection Bias in an Internet-based Study of Pregnancy Planners. / Hatch, Elizabeth E; Hahn, Kristen A; Wise, Lauren A; Mikkelsen, Ellen Margrethe; Kumar, Ramya; Fox, Matthew P; Brooks, Daniel R; Riis, Anders H; Sørensen, Henrik Toft; Rothman, Kenneth J.

    In: Epidemiology, Vol. 27, No. 1, 01.2016, p. 98-104.

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

  10. Published

    Alcohol consumption and fecundability : prospective Danish cohort study. / Mikkelsen, Ellen M; Hammerich Riis, Anders; Wise, Lauren A; Hatch, Elizabeth E; Rothman, Kenneth J; Cueto, Heidi Theresa; Sørensen, Henrik Toft.

    In: B M J (Online), Vol. 354, 2016, p. i4262.

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

  11. Published

    Brief Report : Cesarean Delivery and Subsequent Fecundability. / Radin, Rose G; Mikkelsen, Ellen M; Rothman, Kenneth J; Hatch, Elizabeth E; Sorensen, Henrik T; Riis, Anders H; Kuohung, Wendy; Wise, Lauren A.

    In: Epidemiology, Vol. 27, No. 6, 11.2016, p. 889-93.

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

  12. 2017
  13. Published

    Costs and Efficiency of Online and Offline Recruitment Methods : A Web-Based Cohort Study. / Christensen, Tina; Hammerich Riis, Anders; Hatch, Elizabeth E; Wise, Lauren A; Nielsen, Marie Germund; Rothman, Kenneth J; Sørensen, Henrik Toft; Mikkelsen, Ellen Margrethe.

    In: Journal of Medical Internet Research, Vol. 19, No. 3, e58, 01.03.2017.

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