“…The studies were published between 1982 and 2019, and were from India (n = 52) 1 , 4 – 6 , 10 – 15 , 25 , 27 , 30 , 31 , 35 – 40 , 43 – 46 , 48 – 50 , 53 – 57 , 59 – 62 , 64 , 66 – 75 , 78 , 79 , 81 , 83 , 84 , Egypt (n = 3) 2 , 42 , 58 , Brazil (n = 3) 26 , 34 , 76 , Portugal (n = 2) 32 , 51 , Pakistan (n = 2) 47 , 77 , Colombia (n = 2) 29 , 52 , Nepal (n = 2) 33 , 82 , France (n = 1) 24 , Iran (n = 1) 63 , Romania (n = 1) 41 , Croatia (n = 1) 65 , Saudi Arabia (n = 1) 28 and Poland (n = 1) 80 . The total sample of participants across studies was 22,965.…”