No | Study ID | Country | Year of survey | Year of publication | Sample size | Age of included participants | Type of study |
---|---|---|---|---|---|---|---|
1 | Floyd [61] | Malawi | 2006–2010 | 2013 | 17,000 | ≥15 | Cross-sectional survey |
2 | Harling [71] | South Africa | 2012 | 2017 | 42,357 | ≥15 | Population Survey |
3 | Jessens [62] | Namibia | 2008–2009 | 2014 | 1992 | ≥12 | Cross-sectional survey |
4 | Kendall [63] | Angola | 2011 | 2014 | 792 | ≥18 | Cross-sectional survey |
5 | Kerr [65] | Brazil | 2016 | 2018 | 4176 | ≥18 | Cross-sectional survey |
6 | Kerr [64] | Brazil | 2009 | 2013 | 3859 | ≥18 | Cross-sectional survey |
7 | Leacy [68] | Zambia | 2006–2010 | 2016 | 34,446 | ≥18 | Population survey |
8 | McGovern [69] | South Africa | 2009 | 2015 | 25,392 | ≥15 | Population survey |
9 | Reiners [52] | Ethiopia | 2003–2004 | 2009 | 1650 | ≥16 | Cross-sectional survey |
10 | Ziraba [66] | Kenya | 2006–2007 | 2010 | 4767 | ≥15 | Cross-sectional survey |