“…Forty five studies (63%) were high-quality (eTables 3 to 7); 23 cohort studies, 22-44 17 cross-sectional, 46,48,52,54,56,59,61,62,64,65,67,71-74,76,78 4 pre-post, 82,83,91-93 and 1 modelling study. 94 Eighteen (25%) were medium-quality; 13 cross sectional, 49-51,53,55,57,58,60,66,68,70,75,77 and 5 pre-post studies. 85,86,88-90 Nine (13%) were low-quality; 1 cohort, 45 3 cross sectional, 47,63,69 and 5 pre-post studies 79-81,84,87…”