Missed opportunities for HIV testing among those who accessed sexually transmitted infection (STI) services, tested for STIs and diagnosed with STIs: a systematic review and meta-analysis.

"COMPETING INTERESTS All authors declare they do not have any competing interests."

"Australian NHMRC Emerging Leadership Investigator Grant; Australian NHMRC Leadership Investigator Grant"

"We conducted a systematic review (Prospero: CRD42021231321) that followed the guidelines in the Cochrane handbook for systematic reviews [] and the PRISMA (Preferred reporting items for systematic reviews and meta‐analyses) guidelines for reporting []. Five databases (Ovid MEDLINE, Ovid Embase, Ovid Global Health, EBSCO CINAHL Plus and Web of Science Core Collection), conferences related to HIV (Conference on Retroviruses and Opportunistic Infections, HIV Research for Prevention Conference, International AIDS Conference, International Conference on AIDS and STIs in Africa, US CDC Prevention and British Association for Sexual Health and HIV) and clinical trial registries (clinicaltrials.gov and WHO international clinical trials registry platform) were searched for publications between 1st January 2010 and 5th May 2021 that documented primary data on concurrent HIV/STI testing uptake. PROSPERO Number: CRD42021231321"