Table 3

Relative risk between 1983/1984 and 1989 estimated by odds ratio (95% confidence interval) for sport related injuries in the study area (Motala) over the registration periods classified according to type of physical exercise and degree of severity

	Degree of severity
	Minor (AIS 1)		Moderate (AIS 2)		Serious (AIS 3–6)		All
	1983/1984	1989	1983/1984	1989	1983/1984	1989	1983/1984	1989
AIS, Abbreviated injury scale.
Basketball/Volleyball/Handball
Injured	49	36	32	15	0	1	81	52
Non-injured	41 383	41 674	41 400	41 695			41 351	41 657
Odds ratio	0.73 (0.47–1.12)		0.47 (0.25–0.86)				0.65 (0.46–0.92)
Racket sports
Injured	17	23	13	10	0	1	30	34
Non-injured	41 415	41 687	41 419	41 700			41 402	41 676
Odds ratio	1.34 (0.72–2.52)		0.76 (0.33–1.74)				1.13 (0.69–1.84)
Motor sports
Injured	6	17	21	11	1	2	28	30
Non-injured	41 426	41 693	41 411	41 699			41 404	41 680
Odds ratio	2.82 (1.11–7.14)		0.52 (0.25–1.08)				1.06 (0.64–1.78)
Soccer
Injured	109	136	208	124	6	7	323	267
Non-injured	41 323	41 574	41 224	41 586	41 426	41 703	41 109	41 443
Odds ratio	1.24 (0.96–1.60)		0.59 (0.47–0.74)		1.16 (0.39–3.45)		0.82 (0.70–0.96)
Ice hockey
Injured	12	11	22	9	0	2	34	22
Non-injured	41 420	41 699	41 410	41 701			41 398	41 688
Odds ratio	0.91 (0.40–2.06)		0.41 (0.19–0.88)				0.64 (0.38–1.10)
Bandy
Injured	28	42	15	15	0	2	43	59
Non-injured	41 404	41 668	41 417	41 695			41 389	41 651
Odds ratio	1.49 (0.92–2.40)		0.99 (0.49–2.03)				1.36 (0.92–2.02)
Gymnastics
Injured	27	34	23	19	0	1	50	54
Non-injured	41 405	41 676	41 409	41 691			41 382	41 656
Odds ratio	1.25 (0.75–2.07)		0.82 (0.45–1.51)				1.07 (0.73–1.58)
Horse riding
Injured	11	26	36	11	3	0	50	37
Non-injured	41 421	41 684	41 396	41 699			41 382	41 673
Odds ratio	2.35 (1.16–4.75)		0.30 (0.15–0.60)				0.73 (0.48–1.12)
Running
Injured	22	17	25	16	0	0	47	33
Non-injured	41 410	41 693	41 407	41 694			41 385	41 677
Odds ratio	0.77 (0.41–1.45)		0.64 (0.34–1.19)				0.70 (0.45–1.09)
Skiing
Injured	19	13	29	8	4	2	52	23
Non-injured	41 413	41 697	41 403	41 702	41 428	41 708	41 380	41 687
Odds ratio	0.68 (0.34–1.38)		0.27 (0.13–0.60)		0.50 (0.09–2.71)		0.44 (0.27–0.72)
Skating
Injured	13	17	13	8	0	1	26	26
Non-injured	41 419	41 693	41 419	41 702			41 406	41 684
Odds ratio	1.30 (0.63–2.67)		0.61 (0.25–1.47)				0.99 (0.58–1.71)
Others
Injured	50	72	40	36	0	2	90	110
Non-injured	41 382	41 638	41 392	41 674			41 341	41 599
Odds ratio	1.43 (1.00–2.05)		0.89 (0.57–1.40)				1.21 (0.92–1.60)
All
Injured	363	444	477	282	14	21	854	747
Non-injured	41 069	41 366	40 955	41 428	41 418	41 689	40 577	40 961
Odds ratio	1.22 (1.06–1.40)		0.58 (0.50–0.68)		1.49 (0.76–2.93)		0.87 (0.79–0.96)