“…Studies tended to use utility data available in the literature, while some HTAs coupled the literature data with data from clinical trials. Thirteen studies in the UK [ 37 , 46 , 49 , 63 , 70 , 112 , 113 , 128 , 144 , 146 , 151 , 166 , 169 ], seven studies in the USA [ 40 , 41 , 71 – 73 , 114 , 137 ], and 11 studies in Europe [ 50 , 76 , 130 , 132 , 140 , 142 , 145 , 147 , 158 , 170 , 171 ] referred to published country-specific studies to derive utility inputs. Country-specific studies were used whenever available, while data from published studies from other countries were used in 12 studies [ 40 , 64 , 66 , 74 , 114 , 119 , 124 , 149 , 150 , 154 , 156 , 163 ] and five HTAs [ 98 – 100 , 102 , 161 ].…”