“…A total of 43 studies (200 980 participants; 19 countries) were included. The CMD prevalence studies were conducted in Asia [26,27,34,39,40,45,[48][49][50][52][53][54]57,70,89,90], America [38,41,44,84], Africa [22], Europe [24,28,32,[35][36][37]43,46,47,56,63,65,68,71,76,88,92] and Oceania [66,83]. The majority of studies (n = 33) had a cross-sectional design.…”