Table 2.

Statistical dependency levels of independent variables according to sex and two different Olympic periods

Variable	Sex		OSICS	Olympic period	IE (n)	df	χ2	padjusted
Chronological age	Male		1	1st	431	24	43.04	0.005
			2			22	40.99	0.005
			1	2nd	481	24	48.71	0.001*
			2			22	49.81	0.001*
	Female		1	1st	311	24	128.63	0.002
			2			22	44.26	0.003
			1	2nd	455	24	114.98	0.001*
			2			22	78.56	0.001*
Weight category	Male		1	1st	431	36	131.56	0.001*
			2			33	53.38	0.005
			1	2nd	481	36	348.18	0.001*
			2			33	188.11	0.001*
	Female		1	1st	311	36	140.39	0.001*
			2			33	86.83	0.001*
			1	2nd	455	36	170.15	0.001*
			2			33	128.78	0.001*
Annual quarter	Male		1	1st	431	36	34.57	0.500
			2			33	27.50	0.700
			1	2nd	481	36	245.14	0.001*
			2			33	110.42	0.001*
	Female		1	1st	311	36	114.17	0.001*
			2			33	72.07	0.001*
			1	2nd	455	36	83.60	0.001*
			2			33	72.89	0.001*
Injury timing	Male		1	1st	431	24	29.59	0.150
			2			22	19.09	0.600
			1	2nd	481	24	19.13	0.700
			2			22	25.75	0.250
	Female		1	1st	311	24	82.50	0.002
			2			22	33.43	0.050
			1	2nd	455	24	131.80	0.002
			2			22	69.65	0.010
Competition difficulty level	Male	Pre	1	1st	102	36	41.56	0.200
			2			33	22.01	0.900
			1	2nd	106	36	44.7	0.100
			2			33	27.41	0.700
		Post	1	1st	82	36	27.82	0.850
			2			33	24.29	0.850
			1	2nd	76	36	28.80	0.750
			2			33	33.76	0.400
	Female	Pre	1	1st	86	36	40.83	0.250
			2			33	40.27	0.150
			1	2nd	97	36	42.67	0.200
			2			33	12.53	0.990
		Post	1	1st	40	36	15.46	0.990
			2			33	17.98	0.975
			1	2nd	63	36	22.37	0.950
			2			33	19.62	0.950

OSICS: 1, injury location; 2, injury type.

Pre: 1st, 1997–2000; 2nd, 2001–2004.

*p_adjusted: significance level ≤0.001.

df, degrees of freedom; IE, injury episode; n, number of injury episodes.