Table 4.

Significant predictors of criterion variables based on Akaike Information Criteria (AIC).

Criterion variable	Significant predictors based on AIC	Estimate	Standard error	t-value	P-value
Intentions
Symptom reporting	Intercept	−0.38	0.78	−0.48	P=0.63
	Knowledge	0.55	0.13	4.12	P<0.001
	Attitudes	0.23	0.11	2.19	P=0.029
	Self-efficacy	0.31	0.08	4.10	P<0.001
Concussion reporting	Intercept	1.55	0.51	3.02	P=0.003
	Knowledge	0.24	0.09	2.78	P=0.006
	Attitudes	0.30	0.07	4.26	P<0.001
	Self-efficacy	0.33	0.05	6.58	P<0.001
Behavior				Exponential estimate
Symptom reporting	Intercept	−4.04	1.76		P=0.02
	Self-efficacy	0.87	0.33	2.40	P=0.009
Concussion reporting	Intercept	−0.04	1.05		P=0.968
	Knowledge	−0.27	0.18	0.77	P=0.128
	Subjective norms	0.21	0.14	1.24	P=0.140

The neutral number (four) replaced missing values which accounted for &<1&%