Cases where playground equipment was explicitly
mentioned as the cause of injury accounted for roughly
one-quarter of injuries overall. This subgroup was analyzed
in the same way. The equipment-related injury rate
in the intervention schools decreased from 0.58 (95% CI
0.45–0.72) injuries per 1000 students per month before
equipment removal to 0.44 (95% CI 0.31–0.57) per 1000
per month after the equipment was replaced (RR 0.82,
95% CI 0.66–1.03). This translated into 117 equipment related
injuries avoided.