“…From the single-country studies, majority were done in Nigeria ( n = 17) ( 24 , 25 , 28 , 29 , 34 , 45 , 54 , 64 , 72 , 75 , 92 , 93 , 103 , 113 , 116 , 124 , 137 ) and South Africa ( n = 20) ( 10 , 26 , 36 , 42 , 55 , 65 , 80 – 83 , 86 , 88 , 89 , 91 , 98 , 105 , 110 , 125 , 129 , 135 ), followed by Uganda ( n = 10) ( 35 , 40 , 48 , 59 , 74 , 78 , 79 , 90 , 94 , 95 ), then Malawi ( n = 9) ( 37 , 52 , 53 , 56 , 66 – 68 , 118 , 133 ) and Ethiopia ( n = 9) ( 33 , 51 , 63 , 97 , 101 , 107 , 112 , 146 , 157 ). We also found studies conducted in Ghana ( n = 6) ( 50 , 71 , 111 ,…”