“…A total of 66 articles were included, including 9 cohort studies, 48 cross-sectional studies, and 13 case-controls. As four articles ( 41 , 51 , 60 , 68 ) had analyzed the association in two different groups of participants each, a total of 70 records were included. The geographic distribution was as follows: China (11 articles), South Korea (9 articles), Turkey (7 articles), United States (6 articles), Italy (3 articles), Iran (3 articles), India (3 articles), Serbia (2 articles), Bangladesh (2 articles), France (2 articles), Saudi Arabia (2 articles), Spain (1 article), Ecuador (1 article), Netherlands (1 article), Canada (1 article), Taiwan (1 article), Australia (1 article), Romania (1 article), Trinidad & Tobago (1 article), Nigeria (1 article), Poland (1 article), Greece (1 article), South Africa (1 article), Slovenia (1 article), Cameroon (1 article), Peru (1 article), and multiple Mesoamerican countries (1 article).…”