“…Included Studies). Most studies reported North America data ( n =40) 4 – 6 , 15 , 23 , 27 , 30 – 35 , 38 – 40 , 43 , 46 – 49 , 52 , 53 , 55 – 62 , 65 – 67 , 70 , 73 , 75 – 78 , 80 , with the remaining spanning Europe 19 , 21 , 22 , 24 , 28 , 42 , 44 , 50 , 51 , 64 , 68 , 81 , the Middle East 20 , Asia 37 , 41 , 45 , 71 , 72 , 74 , 82 , 83 , Africa 63 , and South America 54 . The assessed risk of bias of the included studies ranged from 5 to 8 (fair to good) out of a possible 9 stars when assessed using the NOS.…”