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Persistent User Bias in Case-Crossover Studies in Pharmacoepidemiology.
Hallas J, Pottegård A, Wang S, Schneeweiss S, Gagne JJ. Hallas J, et al. Among authors: pottegard a. Am J Epidemiol. 2016 Nov 15;184(10):761-769. doi: 10.1093/aje/kww079. Am J Epidemiol. 2016. PMID: 27780801
Use of self-controlled designs in pharmacoepidemiology.
Hallas J, Pottegård A. Hallas J, et al. Among authors: pottegard a. J Intern Med. 2014 Jun;275(6):581-9. doi: 10.1111/joim.12186. J Intern Med. 2014. PMID: 24635348 Review.
Use of antibiotics in childhood and risk of Type 1 diabetes: a population-based case-control study.
Mikkelsen KH, Knop FK, Vilsbøll T, Frost M, Hallas J, Pottegård A. Mikkelsen KH, et al. Among authors: pottegard a. Diabet Med. 2017 Feb;34(2):272-277. doi: 10.1111/dme.13262. Epub 2016 Oct 13. Diabet Med. 2017. PMID: 27646695
Sequence symmetry analysis in pharmacovigilance and pharmacoepidemiologic studies.
Lai EC, Pratt N, Hsieh CY, Lin SJ, Pottegård A, Roughead EE, Kao Yang YH, Hallas J. Lai EC, et al. Among authors: pottegard a. Eur J Epidemiol. 2017 Jul;32(7):567-582. doi: 10.1007/s10654-017-0281-8. Epub 2017 Jul 11. Eur J Epidemiol. 2017. PMID: 28698923 Review.
Examining Nonparticipation in the Maternal Follow-up Within the Danish National Birth Cohort.
Bliddal M, Liew Z, Pottegård A, Kirkegaard H, Olsen J, Nohr EA. Bliddal M, et al. Among authors: pottegard a. Am J Epidemiol. 2018 Jul 1;187(7):1511-1519. doi: 10.1093/aje/kwy002. Am J Epidemiol. 2018. PMID: 29346474 Free PMC article.
Postponement of Death by Pharmacological Heart Failure Treatment: A Meta-Analysis of Randomized Clinical Trials.
Hansen MR, Hróbjartsson A, Videbæk L, Ennis ZN, Pareek M, Paulsen NH, Broe M, Olesen M, Pottegård A, Damkier P, Hallas J. Hansen MR, et al. Among authors: pottegard a. Am J Med. 2020 Jun;133(6):e280-e289. doi: 10.1016/j.amjmed.2019.11.015. Epub 2020 Mar 13. Am J Med. 2020. PMID: 32173347
Using the waiting time distribution with random index dates to estimate prescription durations in the presence of seasonal stockpiling.
Bødkergaard K, Selmer RM, Hallas J, Kjerpeseth LJ, Pottegård A, Skovlund E, Støvring H. Bødkergaard K, et al. Among authors: pottegard a. Pharmacoepidemiol Drug Saf. 2020 Sep;29(9):1072-1078. doi: 10.1002/pds.5026. Epub 2020 May 21. Pharmacoepidemiol Drug Saf. 2020. PMID: 32436295
Bias in case-crossover studies of medications due to persistent use: A simulation study.
Bykov K, Wang SV, Hallas J, Pottegård A, Maclure M, Gagne JJ. Bykov K, et al. Among authors: pottegard a. Pharmacoepidemiol Drug Saf. 2020 Sep;29(9):1079-1085. doi: 10.1002/pds.5031. Epub 2020 Jun 16. Pharmacoepidemiol Drug Saf. 2020. PMID: 32548875
Association of Nonsteroidal Anti-inflammatory Drug Use and Adverse Outcomes Among Patients Hospitalized With Influenza.
Lund LC, Reilev M, Hallas J, Kristensen KB, Thomsen RW, Christiansen CF, Sørensen HT, Johansen NB, Brun NC, Voldstedlund M, Støvring H, Thomsen MK, Christensen S, Pottegård A. Lund LC, et al. Among authors: pottegard a. JAMA Netw Open. 2020 Jul 1;3(7):e2013880. doi: 10.1001/jamanetworkopen.2020.13880. JAMA Netw Open. 2020. PMID: 32609352 Free PMC article.
Using the Case-Crossover Design to Assess Short-Term Risks of Bleeding and Arterial Thromboembolism After Switching Between Oral Anticoagulants in a Population-Based Cohort of Patients With Atrial Fibrillation.
Hellfritzsch M, Wang SV, Grove EL, Gagne JJ, Hallas J, Pottegård A. Hellfritzsch M, et al. Among authors: pottegard a. Am J Epidemiol. 2020 Dec 1;189(12):1467-1477. doi: 10.1093/aje/kwaa133. Am J Epidemiol. 2020. PMID: 32639512
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