Number of injured and uninjured occupants by age and seat orientation along with survey-weighted percentages and P values comparing the injury rates between RFCRS and FFCRS
| Data years 1988–2003 | Data years 1988–2015 | |||||
| RFCRS (%) | FFCRS (%) | P value | RFCRS (%) | FFCRS (%) | P value | |
| Age 0 year | ||||||
| Uninjured | 279 (99.7) | 65 (99.3) | 0.278 | 551 (99.4) | 71 (99.3) | 0.851 |
| Injured | 13 (0.3) | 3 (0.7) | 27 (0.6) | 3 (0.7) | ||
| Age 1 year | ||||||
| Uninjured | 60 (99.9) | 276 (99.5) | 0.210 | 98 (99.8) | 339 (99.5) | 0.397 |
| Injured | 1 (0.1) | 12 (0.5) | 3 (0.2) | 14 (0.5) | ||
FFCRS, forward-facing child restraint systems; RFCRS, rear-facing child restraint systems.