期刊
JOURNAL OF CLINICAL EPIDEMIOLOGY
卷 64, 期 10, 页码 1144-1151出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jclinepi.2010.08.007
关键词
Patient selection; Risk factors; Cohort studies; Patient participation; Respiratory distress syndrome; adult; Randomized controlled trial
资金
- NHLBI NIH HHS [R01 HL088045, R01 HL088045-02, K24 HL088551] Funding Source: Medline
Objective: To study the effect of different mail- and phone-based strategies, along with patient- and research-related factors, on the time to contact with research participants. Study Design and Setting: A prospective evaluation of a 12-week standardized protocol (embedded with two randomized trials of mail- and phone-based strategies) for contacting existing research participants for recruitment into a related study. Results: Of 146 participants, 87 were eligible for contact via the standardized protocol, and 63 (72%) of these were successfully contacted within 12 weeks after multiple mail- and phone-based efforts. Using Cox proportional hazards regression analysis, the different mail and phone strategies showed no significant difference in the time to contact with participants. Of 34 patient- and research-related factors evaluated, only two were independently associated with time to contact among all 146 participants: (1) participants having their last visit conducted outside of the research clinic because of patient illness/condition had a longer time to contact and (2) those with a self-reported chronic fatigue history had a shorter time to contact. Conclusion: Few patient characteristics and research-related factors accurately predict time to contact. Repeated attempts using different strategies are important for successful and timely contact with study participants. (C) 2011 Elsevier Inc. All rights reserved.
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