Participants who left a multiple-wave cohort study had similar baseline characteristics to participants who returned

Annals of Epidemiology
Robert S WareRosemary L Aird

Abstract

Research on determinants of an individual's pattern of response, considered as a profile across time, for cohort studies with multiple waves is limited. In this prospective population-based pregnancy cohort, we investigated baseline characteristics of participants after partitioning them according to their history of response to different interview waves. Data are from the Mater-University of Queensland Study of Pregnancy 1981 to 1983 cohort, Brisbane, Australia. Complete baseline information was collected for 7223 of 7535 eligible individuals (95.9%). Follow-up occurred at 6 months, 5 years, and 14 years. Response rates were 93.0%, 72.5%, and 71.8%. Participants were allowed to leave and reenter the study. Participants were categorized as always, intermittent, or never responders. Intermittent responders were categorized further as leavers (responded at least once before leaving the study) or returners (left the study before reentering). Participants who always responded were older, more educated, married, Caucasian, and nonsmokers and had higher incomes. Intermittent responders shared similar baseline characteristics. Relative risk for being an intermittent responder was located between risks for always or never responding. P...Continue Reading

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Citations

Oct 27, 2010·Social Psychiatry and Psychiatric Epidemiology·Kaeleen DingleRosa Alati
Jul 25, 2012·BMC Medical Research Methodology·Penelope TroudeUNKNOWN DAIFI Group
Mar 17, 2009·BMC Medical Research Methodology·Deborah A DeVitaEdward L Murphy
Oct 11, 2014·Journal of Women's Health·Syed Shahzad HasanTherese Kairuz
Jan 5, 2010·Journal of Women's Health·Abdullah A MamunWilliam Bor
Jun 30, 2015·Journal of Women's Health·Syed Shahzad HasanTherese Kairuz
Dec 19, 2014·International Journal of Epidemiology·Jake M NajmanNaomi Wray
Sep 15, 2016·Australian and New Zealand Journal of Public Health·Nurzalinda ZalbaharAbdullah Mamun
Jan 4, 2018·Journal of Interpersonal Violence·Zohre AhmadabadiAlexandra M Clavarino
Oct 3, 2012·Pediatrics·Rebecca HydeJake M Najman

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