“…Study design included cohort (prospective (n = 13) 23,24,69,74,75,29,36‐38,51,52,56,58 and retrospective (n = 6) 27,44,55,57,61,62 ), case–control (n = 7), 1,25,39,46,53,64,71 and cross‐sectional studies (n = 29) 5,26,41‐43,45,47‐50,54,59,28,60,63,65‐68,70,72,73,30‐35,40 . HE was assessed in different study settings, including clinical (n = 15), 1,23,68,69,71,74,75,29,44,53,54,61,64,66,67 occupational (n = 22), 5,24,50,52,55‐60,62,63,25,65,73,27,30,36,40,45,47,49 and the general population (n = 18) 26,28,41‐43,46,48,51,70,72,31‐35,37‐39 . The diagnoses of HE was either retrieved from medical records (n = 5), 23,44,55,61,62 self‐reported (n = 24), 5,26,37,39‐41,43,45,46,49‐51,27,53,59,70,73,28,30‐35 or physician diagnosed (n = 23),…”