Table 2. Odds ratios and 95% CIs for outcomes by sports type.

Outcomes		Total, No.	Outcome, No. (%)	Unadjusted OR		Adjusted OR
				OR	95% CI	OR	95% CI
Traumatic brain injury
	Field sports	5,489	934 (17.0)	1.00		1.00
	Floor sports	2,423	357 (14.7)	0.84	0.74–0.96	0.86	0.76–0.99
	Bicycle and street sports	694	131 (18.9)	1.14	0.93–1.39	1.77	1.37–2.28
	Water sports	653	57 (8.7)	0.47	0.35–0.62	0.59	0.44–0.79
	Racket sports	485	24 (4.9)	0.25	0.17–0.39	0.27	0.18–0.40
	Others	973	183 (18.8)	1.13	0.95–1.35	1.28	1.06–1.55
Intracranial injury
	Field sports	5,489	57 (1.0)	1.00		1.00
	Floor sports	2,423	25 (1.0)	0.99	0.62–1.59	1.07	0.66–1.72
	Bicycle and street sports	694	25 (3.6)	3.56	2.21–5.74	4.99	2.62–9.50
	Water sports	653	2 (0.3)	0.29	0.07–1.20	0.48	0.11–2.07
	Racket sports	485	3 (0.6)	0.59	0.19–1.90	0.69	0.21–2.22
	Others	973	16 (1.6)	1.59	0.91–2.79	1.91	1.04–3.49
Admission
	Field sports	5,489	203 (3.7)	1.00		1.00
	Floor sports	2,423	72 (3.0)	0.80	0.61–1.05	0.87	0.66–1.15
	Bicycle and street sports	694	34 (4.9)	1.34	0.93–1.95	2.27	1.42–3.61
	Water sports	653	6 (0.9)	0.24	0.11–0.55	0.38	0.16–0.87
	Racket sports	485	28 (5.8)	1.60	1.06–2.40	1.86	1.23–2.81
	Others	973	34 (3.5)	0.94	0.65–1.37	1.12	0.75–1.66

CI = confidence interval, OR = odds ratio.