Table 3. Effects of FIFA 11+ intervention on injury risk in players based on primary outcomes.
INT Group CON Group
n Incidence(x1000 hrs) n Incidence(x1000 hrs) z-test Rate Ratio (95% CI) P-value
All injuries 36 0.8 94 1.5 - 2.72 .59 (.40 – .86) .006 *
Match injuries 23 7.5 73 20.3 - 4.50 .35 (.23 – .55) <.001 *
Training injuries 12 0.3 22 0.4 - 0.20 .93 (.47 – 1.86) .842
All lower extremity injuries 26 0.6 76 1.2 - 2.87 .52 (.34 – .82) .004 *
* Significant at p < 0.05. CI – Confidence Interval; INT – Intervention; CON – Control.