“…Three studies were low quality, 18 were moderate (including the WHO surveys), and eight were of high quality. Nine studies 37 , 38 , 48 , 52 , 53 , 54 , 55 , 57 , 61 reported outcomes based on WHO recommendations and results from the International and Global Physical Activity Questionnaires, 62 , 63 , 64 five studies used definitions derived from other sources, 32 , 41 , 44 , 58 , 60 and 15 did not refer to any pre-existing definition. 25 , 27 , 31 , 36 , 42 , 43 , 45 , 46 , 47 , 49 , 50 , 51 , 56 , 59 , 65 Measures of sedentary behaviour (not technically a non-communicable disease behavioural risk factor) were reported in 19 studies; high or sufficient levels of activity were reported in ten studies.…”