Libby PorterCentre for Urban Research, RMIT University, Melbourne, AustraliaI’m not sure who needs to hear this.Perhaps this is a letter, written future version of myself. Maybe who...

BACKGROUND HIV serosurveys have become important sources of HIV prevalence estimates, but these estimates may be biased because of refusals and other forms of non-response. We investigate the effect of the post-test counseling study protocol on bias due to the refusal to be tested. METHODS Data come from a nine-month prospective study of hospital admissions in Addis Ababa during which patient...