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Published on: November 11, 2013
Efficacy of mobile telephone contact for follow-up in injecting heroin users
A Hakansson1, P Isendahl, C Wallin
1Clinical Alcohol Research, Lund University, Malmö University Hospital, SE-205 02 Malmö, Sweden. anders_c.hakansson@med.lu.se
Background:
Prospective follow-up of heroin users is known to be difficult due to their unstable lifestyle, and high follow-up rates have usually demanded major tracking efforts. In Sweden, mobile telephones are commonly used by heavy drug users for drug trading.
Objectives:
This methodology study aims to examine the efficacy of mobile telephone contact for prospective follow-up interviews with injecting heroin users recruited at the syringe exchange program of Malmö, Sweden.
Methods:
Seventy-eight heroin users with mobile telephone numbers were included. Subjects reported using heroin for 28 days of the previous 30 days, and only 8% reported they had recently been engaged in work or studies. Clients were contacted between 15 and 21 times over 2 years, with each contact attempt generally involving two telephone calls on consecutive days.
Results:
During follow-up, 68% of subjects had been successfully contacted for at least one follow-up interview (on average 6.9 interviews), and 25% of follow-up attempts were successful. In 23% of the sample (n=18), at least 50% of follow-up attempts were successful, and these subjects tended to be older (p=.05) and more likely to be female (p=.07), whereas follow-up rates were unrelated to baseline heroin use.
Conclusions And Scientific Significance:
Despite limited effort, and despite the severe situation of intravenous heroin users, mobile telephone contact can be used with heavy drug users in the present setting.

