Signs of tobacco use in rental cars
| Signs of tobacco use | Car reservation and pickup: type of car requested by confederate. | |||||
| Non-smoker | No preference stated: unknown designation | Smoker | ||||
| Local, N (%) | National, N (%) | Local, N (%) | National, N (%) | Local, N (%) | National, N (%) | |
| Ash in ashtrays* | 9 (64) | 8 (57) | 14 (67) | 4 (29) | 8 (80) | 3 (50) |
| Ash anywhere in car | 19 (45) | 14 (34) | 14 (58) | 18 (43) | 15 (71) | 13 (62) |
| Used lighters† | 12 (30) | 7 (17) | 23 (44) | 11 (28) | 12 (60) | 5 (28) |
| Moderate/strong odour | 5 (11) | 4 (9) | 7 (17) | 4 (10) | 8 (38) | 2 (9) |
| Burn marks | 13 (31) | 2 (5) | 20 (50) | 3 (7) | 14 (67) | 2 (10) |
| Any sign, anywhere in car | 29 (69) | 23 (56) | 26 (65) | 23 (56) | 19 (90) | 14 (67) |