“…Most sociodemographic factors present a mixed picture of results. As such, higher age was reported as a barrier to vaccine uptake (HCP 5/117 [ 53 , 54 , 89 , 285 , 331 ]; Chronic 3/45 [ 291 , 431 , 445 ], Children 3/18 [ 97 , 402 , 446 ]; Public 8/191 [ 72 , 108 , 224 , 309 , 396 , 447 – 449 ]) but also as a promotor (HCP 30/117 [ 45 , 46 , 51 , 55 , 75 , 91 , 131 , 133 , 274 , 280 , 289 , 323 , 374 , 450 – 465 ]; Pregnant 3/35 [ 57 , 297 , 324 ]; Chronic 21/45 [ 95 , 238 , 290 , 294 , 321 , 325 , 349 – 354 , 370 – 372 , 386 – 388 , 399 , 466 – 468 ]; Children 2/18 [ 119 ,…”