“…Others used pre-post assessments of enforcement strategies including surveys and observation [ 15 , 19 , 21 , 22 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 33 , 34 , 35 , 37 ]. Policy restrictiveness (total or partial ban) and extensiveness of implementation [ 20 , 24 , 26 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ], setting type [ 16 , 25 , 34 , 35 , 36 , 39 ], and smoking status [ 18 , 19 , 25 , 27 ] were the factors most frequently identified as impacting on policy compliance.…”