Table 3.

Risk ratios by facial fracture for adult occupants in frontal impacts (all p values are < 0.0001).

Data Segment	Comparison	Risk Ratio	95% Confidence Interval
All	Belted vs. Unbelted	0.26	0.23	0.28
Belted	Airbag vs. No Airbag	0.51	0.43	0.59
Unbelted		0.65	0.57	0.76