Effectiveness of various mailing strategies among nonrespondents in a prospective cohort study

Eric B. Rimm, Meir J. Stampfer, Graham A. Colditz, Edward Giovannucci, Walter C. Willett

Research output: Contribution to journalArticlepeer-review

126 Scopus citations

Abstract

Measures of association in prospective studies can be distorted by incomplete follow-up. Various mailing strategies were used to contact 12,233 cohort members of the Health Professionals Follow-up Study who had not responded to three successive bulk-rate mailings. Response rates were highest, 79.5% overall, from participants who were sent a certified mailing in phase 1 (63.2%), followed by a repeat certified mailing to nonrespondents (44.3%). Although altering the physical appearance of the envelope and using other postal rates were tested, certified mail was the most effective approach for reaching study members who were nonrespondents to a mailed questionnaire.

Original languageEnglish
Pages (from-to)1068-1071
Number of pages4
JournalAmerican journal of epidemiology
Volume131
Issue number6
DOIs
StatePublished - Jun 1990

Keywords

  • Epidemiologic methods
  • Health surveys
  • Prospective studies
  • Questionnaires

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