“…Among the included studies, 14 (64%) were completed in the United States [ 42 , 44 – 48 , 51 , 52 , 54 , 55 , 57 , 58 , 62 , 63 ], two (9%) in Australia [ 38 , 53 ], and one (5%) each in Hong Kong [ 30 ], Italy [ 59 ], Japan [ 56 ], Norway [ 60 ], Singapore [ 61 ], and Taiwan [ 29 ]. Eighteen of the 22 articles (82%) were cohort studies, with 13 (59%) being retrospective cohort studies [ 38 , 42 , 44 , 46 , 48 , 51 , 52 , 55 , 57 – 59 , 61 , 62 ] and five (23%) prospective cohort studies [ 29 , 30 , 45 , 60 , 63 ]. There were also three (14%) cross-sectional studies [ 47 , 53 , 54 ] and one (5%) retrospective study design for data from a cross-sectional survey [ 56 ].…”