A new recruiting strategy to allow estimates of response rates in studies with people who inject drugs.

Abstract

A new method of recruiting people who inject drugs was employed in Adelaide in 1994 to attempt to obtain a response rate and demographic information about those who declined to participate. Numbered invitation cards were distributed to injecting drug users (IDUs). Those choosing not to participate were asked to complete 4 questions on the card and return them. 22.7%. Of all cards distributed resulted in an enquiry about the study and only 1.4% of the cards were returned from those who chose not to participate. This recruiting strategy is as successful as other strategies with the added advantage of estimating response rates.