Total (n=2442) | Private (n=1736) | Commercial (n=482) | Taxi (n=224) | |||||
% (95% CI) | p Value | % (95% CI) | p Value | % (95% CI) | p Value | % (95% CI) | p Value | |
Sex | 0.031 | 0.223 | 0.351 | 0.708 | ||||
Male | 5.2 (4.2 to 6.2) | 4.2 (3.1 to 5.3) | 9.2 (6.5 to 11.9) | 2.3 (0.3 to 4.3) | ||||
Female | 2.9 (1.5 to 4.3) | 2.9 (1.4 to 4.4) | 3.8 (0.7 to 18.9) | 0 (0.0 to 39.0) | ||||
Age | 0.002 | 0.001 | 0.945 | 0.345 | ||||
18–34 years | 6.6 (4.6 to 8.6) | 6.1 (3.9 to 8.3) | 8.4 (3.6 to 13.2) | 5.3 (0.9 to 24.6) | ||||
35–64 years | 4.3 (3.3 to 5.3) | 3.2 (2.2 to 4.2) | 9.4 (6.3 to 12.5) | 2.0 (0.1 to 3.9) | ||||
≥65 years | 0.7 (0.1 to 4.0) | 0.8 (0.1 to 4.4) | 0 (0.0 to 27.8) | 0 (0.0 to 65.8) | ||||
Socioeconomic status* | 0.628 | 0.277 | 0.585 | 0.268 | ||||
Low | 5.2 (3.8 to 6.6) | 4.7 (3.1 to 6.3) | 7.4 (3.7 to 11.1) | 3.9 (0.1 to 7.7) | ||||
Medium | 4.3 (3.0 to 5.6) | 3.1 (1.8 to 4.4) | 9.3 (5.3 to 13.3) | 1.2 (0.2 to 6.6) | ||||
High | 4.5 (2.7 to 6.3) | 3.4 (1.5 to 5.3) | 11.1 (4.6 to 17.6) | 0 (0.0 to 8.8) | ||||
Driver's open window | <0.001 | <0.001 | 0.001 | 0.089 | ||||
Yes | 9.3 (7.6 to 11.0) | 9.1 (6.9 to 11.3) | 12.3 (8.6 to 16.0) | 3.5 (0.5 to 6.5) | ||||
No | 1.0 (0.5 to 1.5) | 0.6 (0.1 to 1.1) | 3.3 (0.7 to 5.9) | 0 (0.0 to 4.5) | ||||
Time | 0.097 | 0.947 | 0.006 | 0.150 | ||||
Morning (8:00–11:00 h) | 5.3 (4.1 to 6.5) | 3.8 (2.6 to 5.0) | 11.6 (8.0 to 15.2) | 0.9 (0.2 to 4.7) | ||||
Afternoon (17:00–19:00 h) | 3.8 (2.6 to 5.0) | 3.8 (2.4 to 5.2) | 4.1 (1.1 to 7.1) | 3.7 (0.1 to 7.3) | ||||
Weather | 0.230 | 0.506 | 0.855 | 0.004 | ||||
Sunny | 4.3 (3.3 to 5.3) | 3.6 (2.6 to 4.6) | 9.1 (5.9 to 12.3) | 0.6 (0.1 to 3.3) | ||||
Cloudy | 5.4 (3.8 to 7.0) | 4.3 (2.5 to 6.1) | 8.6 (4.3 to 12.9) | 7.1 (0.4 to 13.8) |
↵* According to socioeconomic status of district.