“…Sample sizes ranged from 35 [ 55 ] to 9996 participants [ 71 ] and the duration of follow-up ranged from 24 hours [ 66 ] to 36 months [ 47 ]. The majority of studies were conducted in Europe (66%; n = 27) [ 35 , 37 , 39 – 41 , 43 , 47 , 50 – 52 , 57 – 59 , 61 – 65 , 67 – 70 , 74 – 76 , 78 , 79 ] and North America (29%; n = 12) [ 36 , 38 , 42 , 44 – 46 , 48 , 49 , 53 , 56 , 60 , 66 ]. Two (4%) studies [ 54 , 71 ] were conducted over multiple countries and one (2%) study [ 55 ] did not report the country where the study was conducted, but the authors’ affiliation was from the Republic of Ireland.…”