The effect of a direct payment or a lottery on questionnaire response rates: a randomised controlled trial
Open Access
- 1 January 2000
- journal article
- clinical trial
- Published by BMJ in Journal of Epidemiology and Community Health
- Vol. 54 (1) , 71-72
- https://doi.org/10.1136/jech.54.1.71
Abstract
Questionnaires about menopause services in the North West of England were sent to a random sample of 1000 women aged 40 to 65 during September to November 1997. The questionnaires included questions about use of hormone replacement therapy (HRT) and women's demographic characteristics.Keywords
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