| http://www.w3.org/ns/prov#value | - The review noted that data is scant in particular regions (central sub-Saharan Africa, Middle East, Eastern Europe, Asia Pacific) and therefore data must be interpreted cautiously, but reported that the prevalence appeared to be highest in central sub-Saharan Africa (21 percent; 95% CI 4.5-37.5) and southern sub-Saharan Africa (17.4 percent; 95% CI 11.4-23.3).
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