... results from five studies (conducted in SouthAfrica, Tanzania, Uganda and Zimbabwe), and morelikely to report multiple partners and transactional sexin studies conducted in Zimbabwe.However, ... paternalorphans and double orphans). We investigated publica-tion bias using a visual inspection of funnel plots, and examined the stability of the meta -analysis results usingOrwin’s fail-safe N analysis. Assessment ... carri ed out all searches and procedures forstudy selection, data extraction and analysis. SearchElectronic searc hes of PubMed/Biomed Central/Medline,PsycINFO, and EMBASE were carried out...