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Correspondence to: Ms K Underhill, University of Oxford, Oxford, UK; email@example.com
Do sexual abstinence (SA) only programmes prevent HIV infection in high-income countries?
Medline, CINAHL, EMBASE/Excerpta Medica, CENTRAL, Catalogue of US Government Publications, and 25 other databases (1980 to February 2007); libraries of agencies involved with HIV prevention (eg, WHO); relevant conference proceedings (after 2000); experts; and cross-referencing articles on pregnancy prevention and HIV prevention.
Study selection and assessment:
randomised controlled trials (RCTs) or quasi-RCTs in any language that evaluated any intervention or programme for SA as the only means of HIV prevention in high-income countries (ie, gross national income/capita ⩾$10 726, £5450, or €8035). Trials of pregnancy and HIV prevention, or HIV prevention alone were included. Trials of people who were HIV positive, programmes explicitly promoting condom use or safe sex, SA only programmes not evaluating HIV prevention, and RCTs that did not report biological or behavioural …
Source of funding: no external funding.