Table 1 Incidence of injuries in semi-professional football players in Nigeria

All injuries

 No of injuries

116

50

 Match exposure (hours)

1023

759

 Injuries per match (95% CI)

3.7 (3.1–4.5)

2.2 (1.6–2.9)

 Injuries per 1000 h (95% CI)

113.4 (93.7–136.0)

65.9 (48.9–86.8)

 IRR (95% CI)

1.72 (1.23–2.45)*

Reference

Time-loss injuries

 No of injuries

16

6

 Injuries per match (95% CI)

0.5 (0.3–0.8)

0.3 (0.1–0.6)

 Injuries per 1000 h (95% CI)

15.6 (8.9–25.4)

7.9 (2.9–17.2)

 IRR (95% CI)

1.98 (0.74–6.17)

Reference