Table 5.

Number of acute injuries, acute knee or ankle injuries, and incidence of injuries during matches and training. Incidence is reported as the number of injuries per 1000 player hours, with standard errors

	Intervention group (n=958)		Control group (n=879)		Rate ratio (95% CI)*	P value (z test)
	Injuries	Incidence	Injuries	Incidence
No of acute injuries:	85	0.9 (0.08)	156	1.8 (0.06)	0.51 (0.39 to 0.66)	<0.0001
Match	53	4.7 (0.06)	111	10.3 (0.04)	0.46 (0.33 to 0.64)	<0.0001
Training	32	0.4 (0.14)	45	0.6 (0.12)	0.66 (0.42 to 1.04)	0.07
No of acute knee or ankle injuries:	48	0.5 (0.11)	81	0.9 (0.09)	0.55 (0.39 to 0.79)	0.001
Match	28	2.5 (0.06)	57	5.3 (0.06)	0.47 (0.30 to 0.74)	0.001
Training	20	0.2 (0.18)	24	0.3 (0.17)	0.78 (0.43 to 1.41)	0.41

^*Rate ratio obtained from Poisson model.