| Riders (n = 2134) | Pillion riders (n = 1365) | Total (n = 3499) | p valuea | |||
---|---|---|---|---|---|---|---|
 | No. | (%) | No. | (%) | No. | (%) |  |
Use per 100 riders or pillion riders observed | |||||||
Helmet use | 1961 | (91.9) | 915 | (67.0) | 2876 | (82.2) | < 0.001 |
Standard helmet use | 1278 | (59.9) | 549 | (40.2) | 1827 | (52.2) | < 0.001 |
Full-face helmet use | 1106 | (51.8) | 423 | (31.0) | 1529 | (43.7) | < 0.001 |
Proper helmet use | 880 | (41.2) | 354 | (25.9) | 1234 | (35.3) | < 0.001 |
Effective helmet use | 737 | (34.5) | 247 | (18.1) | 984 | (28.1) | < 0.001 |