Skip to main content

Table 4 Injury rate per 1000 h of physical activity and comparison of injury rates per group

From: Sports participation related to injuries and illnesses among ambulatory youth with chronic diseases: results of the health in adapted youth sports study

Group comparisonsMean minutes PA per day
(range min-max)
Cumulative hours of PA during 1 year per groupNumber of injuries
(95% CI)
Injury rate
(95% CI)
IRD (95% CI)
IRR (95% CI)
p-value*
Group 0
(non-sports) +
group 1
(sports 1x/wk)
Vs. Group 2
(sports ≥2x/wk)
134.6 (59–244)
171.8 (73–292)
19,693
44,937
26
60 (45.8 to 77.2)
1.32 (0.9 to 1.9)
1.33 (1.0 to 1.7)
IRD
−0.015 (−0.6 to 0.6)
IRR
0.99 (0.6 to 1.6)
0.962
Group 0
(non-sports)
Vs. Group 1
(sports 1x/wk)
146.2 (80–244)
123.6 (59–182)
10,674
9019
9 (4.1 to 17.1)
17 (9.9 to 27.2)
0.84 (0.38 to 1.6)
1.88 (1.1 to 3.1)
IRD
1.04 (−17.1 to 17.7)
IRR
0.44 (0.18 to 1.06)
0.275
Group 1
(sports 1x/wk)
Vs. Group 2
(sports ≥2x/wk)
123.6 (59–182)
171.8 (73–292)
9019
44,937
17 (9.9 to 27.2)
60 (45.8 to 77.2)
1.88 (1.1 to 3.1)
1.33 (1.0 to 1.7)
IRD
0.55 (−6.3 to 17.2)
IRR
0.71 (0.41 to 1.30)
0.387
Group 2
(sports ≥2x/wk)
Vs. Group 0
(non-sports)
171.8 (73–292)
146.2 (80–244)
44,937
10,674
60 (45.8 to 77.2)
9 (4.1 to 17.1)
1.33 (1.0 to 1.7)
0.84 (0.38 to 1.6)
IRD
0.49 (−17.6 to 7.2)
IRR
1.58 (0.78 to 3.6)
0.295
  1. PA physical activity, CI confidence interval, vs; versus, IRD incidence rate difference, IRR incidence rate ratio, *significant difference p-value ≤0.05