Indirect measures of smoking behaviour by observation periods, observation sites and facilities
| Total | Central/provincial | District | Commune | |
| Within observation periods | n=819 | n=235 | n=344 | n=240 |
| Cigarette butts collected | ||||
| One or more found during an observation period, n (%) | 352 (43.0) | 140 (59.6) | 187 (54.4) | 25 (10.4) |
| None found during an observation period, n (%) | 467 (57.0) | 95 (40.4) | 157 (45.6) | 215 (89.6) |
| At observation sites* | n=163 | n=43 | n=72 | n=48 |
| Cigarette butts collected | ||||
| One or more found at a site during any observation period, n (%) | 92 (56.4) | 31 (72.1) | 46 (63.9) | 15 (31.3) |
| None found at a site during any observation period, n (%) | 71 (43.6) | 12 (27.9) | 26 (36.1) | 33 (68.8) |
| At healthcare facilities† | n=40 | n=8 | n=16 | n=16 |
| Cigarette butts collected | ||||
| One or more found at any observation site in a facility during any observation period, n (%) | 35 (87.5) | 8 (100) | 16 (100) | 11 (68.8) |
| None found at any observation site in a facility during any observation period, n (%) | 5 (12.5) | 0 (0) | 0 (0) | 5 (31.3) |
*Sites are said to have cigarette butts found if at least one observation period at that site had cigarette butts found.
†Facilities are said to have cigarette butts found if at least one observation site at that facility had cigarette butts found.