Table 1.
Incidence of Fifth Metatarsal Stress Fracture by University Year and Playing Surfacea
| No. of Injuries | IR per 1000 AEs (95% CI) | RR (95% CI) | P Valueb | |
|---|---|---|---|---|
| Injury during university year | 1.20 (0.51-1.89) | .72 | ||
| Juniors | 11 | 0.12 (0.00-2.20) | ||
| Seniors | 5 | 0.10 (0.00-2.18) | ||
| Playing surface | 0.53 (0.00-1.22) | .30 | ||
| Natural turf | 3 | 0.09 (0.00-1.90) | ||
| Artificial turf | 13 | 0.17 (0.00-1.98) |
aJuniors were first- and second-year students; seniors were third- and fourth-year students. AE, athete-exposure; IR, injury rate; RR, rate ratio.
bThere were no statistically significant differences for university year or ground environment.