Predictors of helmet use among motorcycle drivers*
| Variables | Coefficient estimate | SE | Wald’s χ2 | p Value | OR | 95% CI |
|---|---|---|---|---|---|---|
| *Model adjusted for helmet-wearing drivers. | ||||||
| †Road types are classified as those with legislation requiring compulsory and non-compulsory helmet use. | ||||||
| Road type† | 1.6140 | 0.0376 | 1840.7430 | <0.001 | 4.862 | 4.536 to 5.213 |
| Passenger | −0.3755 | 0.1086 | 11.9682 | 0.001 | 1.138 | 1.059 to 1.223 |
| Sex | 0.2936 | 0.0620 | 22.4314 | <0.001 | 1.615 | 1.458 to 1.788 |
| Goods carried | 0.8452 | 0.0839 | 101.5924 | <0.001 | 1.819 | 1.617 to 2.046 |