“…From the included studies, the highest non-compliance with smoke-free law was found to be 98.2% in food and drinking establishments ( 32 ) and the lowest non-compliance was 10.3% in healthcare facilities ( 36 ). Regarding the study country, four studies were conducted in India ( 29 , 31 , 35 , 37 ), two in China ( 17 , 30 ), two in Russia ( 28 , 38 ), one in United states ( 15 ), one in Guatemala ( 24 ) one in Indonesia ( 16 ), two in Ethiopia ( 14 , 36 ), two in South Africa ( 23 , 32 ), one in Australia ( 19 ), one in Portugal ( 34 ), one in European Union ( 27 ), one in Bangladesh ( 26 ), one in Vietnam ( 33 ), one in Turkey ( 22 ), one in Pakistan ( 21 ), and one in Nepal ( 25 ). Among the included the studies, the sample size ranged between 25,475,032 ( 15 ) and 40 ( 37 ) ( Table 1 ).…”