Journal
AIDS
Volume 28, Issue -, Pages S435-S444Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/QAD.0000000000000435
Keywords
AIDS; HIV; intravenous; meta-analysis; mortality; review; substance abuse; systematic
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Objective:To systematically review and analyse data from cohorts of people who inject drugs (PWID) to improve existing estimates of non-AIDS mortality used to calculate mortality among PWID in the Spectrum Estimates and Projection Package.Design:Systematic review and meta-analysis.Methods:We conducted an update of an earlier systematic review of mortality among PWID, searching specifically for studies providing data on non-AIDS-related deaths. Random-effects meta-analyses were performed to derive pooled estimates of non-AIDS crude mortality rates across cohorts disaggregated by sex, HIV status and periods in and out of opioid substitution therapy (OST). Within each cohort, ratios of non-AIDS CMRs were calculated and then pooled across studies for the following paired sub-groups: HIV-negative versus HIV-positive PWID; male versus female PWID; periods in OST versus out of OST. For each analysis, pooled estimates by country income group and by geographic region were also calculated.Results:Thirty-seven eligible studies from high-income countries and five from low and middle-income countries were found. Non-AIDS mortality was significantly higher in low and middle-income countries [2.74 per 100 person-years; 95% confidence interval (CI) 1.76-3.72] than in high-income countries (1.56 per 100 person-years; 95% CI 1.38-1.74). Non-AIDS CMRs were 1.34 times greater among men than women (95% CI 1.14-1.57; N=19 studies); 1.50 times greater among HIV-positive than HIV-negative PWID (95% CI 1.15, 1.96; N=16 studies); and more than three times greater during periods out of OST than for periods on OST (N=7 studies).Conclusions:A comprehensive response to injecting drug must include efforts to reduce the high levels of non-AIDS mortality among PWID. Due to limitations of currently available data, including substantial heterogeneity between studies, estimates of non-AIDS mortality specific to geographic regions, country income level, or the availability of OST should be interpreted with caution.
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