Table 3. Association of sports type and outcomes by age group.
| Outcomes | 5–12 years | 13–15 years | 16–18 years | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. (%) | Unadjusted OR | Adjusted OR | No. (%) | Unadjusted OR | Adjusted OR | No. (%) | Unadjusted OR | Adjusted OR | ||||||||
| OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |||||
| Traumatic brain injury | ||||||||||||||||
| Field sports | 298/1,810 (16.5) | 1.00 | 1.00 | 367/1,946 (18.9) | 1.00 | 1.00 | 269/1,733 (15.5) | 1.00 | 1.00 | |||||||
| Floor sports | 143/986 (14.5) | 0.86 | 0.69–1.07 | 0.86 | 0.69–1.08 | 106/684 (15.5) | 0.79 | 0.62–1.00 | 0.80 | 0.63–1.02 | 108/753 (14.3) | 0.91 | 0.72–1.16 | 0.87 | 0.68–1.12 | |
| Bicycle and street sports | 73/490 (14.9) | 0.89 | 0.67–1.17 | 1.43 | 1.00–2.04 | 35/111 (31.5) | 1.98 | 1.31–3.00 | 3.11 | 1.90–5.09 | 23/93 (24.7) | 1.79 | 1.10–2.92 | 1.43 | 0.81–2.54 | |
| Racket sports | 12/215 (5.6) | 0.30 | 0.17–0.54 | 0.34 | 0.19–0.62 | 7/152 (4.6) | 0.21 | 0.10–0.45 | 0.20 | 0.09–0.43 | 5/118 (4.2) | 0.24 | 0.10–0.60 | 0.19 | 0.08–0.47 | |
| Othersa | 128/1,156 (11.1) | 0.63 | 0.51–0.79 | 0.80 | 0.63–1.02 | 53/225 (23.6) | 1.33 | 0.96–1.84 | 1.34 | 0.94–1.91 | 59/245 (24.1) | 1.73 | 1.25–2.38 | 1.43 | 1.01–2.02 | |
| Intracranial injury | ||||||||||||||||
| Field sports | 12/1,810 (0.7) | 1.00 | 1.00 | 23/1,946 (1.2) | 1.00 | 1.00 | 22/1,733 (1.3) | 1.00 | 1.00 | |||||||
| Floor sports | 6/986 (0.6) | 0.92 | 0.34–2.45 | 0.89 | 0.33–2.41 | 8/684 (1.2) | 0.99 | 0.44–2.22 | 1.01 | 0.44–2.32 | 11/753 (1.5) | 1.15 | 0.56–2.39 | 1.19 | 0.57–2.52 | |
| Bicycle and street sports | 14/490 (2.9) | 4.41 | 2.03–9.59 | 6.17 | 2.22–17.16 | 5/111 (4.5) | 3.95 | 1.47–10.58 | 4.86 | 1.41–16.70 | 6/93 (6.5) | 5.36 | 2.12–13.57 | 3.91 | 1.12–13.62 | |
| Racket sports | 1/215 (0.5) | 0.70 | 0.09–5.41 | 0.78 | 0.10–6.04 | 1/152 (0.7) | 0.55 | 0.07–4.13 | 0.70 | 0.09–5.36 | 1/118 (0.8) | 0.67 | 0.09–4.98 | 0.64 | 0.08–4.98 | |
| Othersa | 9/1,156 (0.8) | 1.18 | 0.49–2.80 | 1.26 | 0.50–3.19 | 4/225 (1.8) | 1.51 | 0.52–4.42 | 1.62 | 0.51–5.19 | 5/245 (2.0) | 1.62 | 0.61–4.32 | 1.58 | 0.55–4.50 | |
| Hospital admission | ||||||||||||||||
| Field sports | 39/1,810 (2.2) | 1.00 | 1.00 | 93/1,946 (4.8) | 1.00 | 1.00 | 71/1,733 (4.1) | 1.00 | 1.00 | |||||||
| Floor sports | 23/986 (2.3) | 1.09 | 0.64–1.83 | 1.21 | 0.71–2.05 | 21/684 (3.1) | 0.63 | 0.39–1.02 | 0.65 | 0.40–1.06 | 28/753 (3.7) | 0.90 | 0.58–1.41 | 0.95 | 0.60–1.50 | |
| Bicycle and street sports | 22/490 (4.5) | 2.14 | 1.25–3.64 | 3.63 | 1.84–7.17 | 4/111 (3.6) | 0.75 | 0.27–2.07 | 0.88 | 0.29–2.71 | 8/93 (8.6) | 2.21 | 1.03–4.73 | 2.71 | 1.07–6.88 | |
| Racket sports | 15/215 (7.0) | 3.41 | 1.85–6.29 | 4.20 | 2.24–7.86 | 9/152 (5.9) | 1.25 | 0.62–2.54 | 1.36 | 0.66–2.79 | 4/118 (3.4) | 0.82 | 0.30–2.29 | 0.83 | 0.29–2.37 | |
| Othersa | 22/1,156 (1.9) | 0.88 | 0.52–1.49 | 1.30 | 0.73–2.28 | 7/225 (3.1) | 0.64 | 0.29–1.40 | 0.63 | 0.28–1.42 | 11/245 (4.5) | 1.10 | 0.58–2.11 | 1.11 | 0.56–2.21 | |
OR = odds ratio, CI = confidence interval.
aWater sports group was incorporated into others groups