Enforcement Phase (Time Period) | N | No. Wearing Seat Belt | Percent Seat Belt Use | (95% CI) |
---|---|---|---|---|
Pre-enactment of primary seat belt law (Jan to Dec 2011) | 445 | 86 | 19.3% | (15.7, 23.0) |
Enforcement grace perioda (Feb to Apr 2012) | 237 | 72 | 30.4% | (24.5, 36.2) |
Full enforcement of primary seat belt law (May to Dec 2012) | 822 | 354 | 43.1% | (39.7, 46.5) |
Full enforcement of primary seat belt law (Jan to Dec 2013) | 851 | 400 | 47.0% | (43.7, 50.4) |
↵a Police officers stopped vehicles if occupants were not restrained but only issued warning citations.