“…Considering the regional setting where the included studies were done; six (17,25,35,37,38,48), ve (41,46,47,49,50) and another ve studies were from Russia, South Africa (33,34,51,52,54) and Ethiopia (33,34,51,52,54) respectively. The remaining studies were from United States (US) (36,39), Estonia (42,43), India (14,44,53), Thailand (45), Nigeria (40), Botswana (15) and Zambia (11). Most of the studies in the present analysis were Cohort (25,35,38,41,45,47,49,(52)(53)(54) and cross-sectional (11,14,17,33,34,36,37,42,…”