TABLE 5.

Final model for prediction of K_pc by a general linear model procedure^a

Covariate	Coefficient	Standard error	Significanceb	r2
Constant	0.430			0.087
Age (yr)	0.005	0.002	0.002
Site
Pulmonary	−0.066	0.035	0.064
Skin or skin structure	0.112	0.067
Urinary tract	−0.046	0.082

^aData are for 172 patients. 

^bP values were obtained by analysis of variance.