Health-related quality of life among individuals with long-standing spinal cord injury: a comparative study of veterans and non-veterans

Table 4 Regression analysis for physical component summary (PCS)*

Variables	Unstandardized Coefficients		Standardized Coefficients
	Beta	Std. Error	Beta	t	P
Non-veterans (versus veterans)	26.764	3.602	0.392	7.431	<0.001
Time since injury	7.695	2.910	0.206	2.645	0.01
Lack of spinal injury in cervical region	10.515	3.074	0.283	3.421	0.001

* Variables that failed to represent significant P values (P < 0.05) were excluded from the model using a backward elimination procedure.

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