Abstract
A majority of jails in the United States rely on an opt-in (voluntary) rather than opt-out (universal) approach to testing for sexually transmitted infections (STIs). This study compares an opt-out approach at intake to opt-in testing during incarceration and estimates the prevalence of common STIs among jail inmates. Data derive from a universal intake pilot testing program (n = 298) and an established, student-led voluntary testing program (n = 1,963), respectively. The adjusted prevalence as well as the odds of testing positive for chlamydia were significantly higher in the opt-out program (p = .025 and .008, respectively) than the opt-in program but not for gonorrhea (p = .402 and .300, respectively). These results demonstrate the potential public health benefit of implementation of universal STI testing of jail inmates.
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