Table 3.

Variables selected and estimated coefficients (for standardized variables and outcome) by GLiDeR and backward selection.

	GLiDeR		Backward selection
Covariate	Outcome Coef	Treatment Coef	Outcome Coef	Treatment Coef
Ischemic time	−0.075	−1.018	−0.060	−1.154
Age of recipient	0.097	0.171	0.114	0.270
PO2	0.032	−0.014	0.060	−0.079
Oxygen amount required	−0.052	−0.088	−0.060	−0.261
6 minute walk distance	0.019	−0.004	0.061	−0.044
Height of recipient	−0.058	0.008	*	*
Height of donor	−0.015	0.005	*
Local or regional (vs. national) allocation	0.034	0.096	*	*
Center volume	0.010	−0.013	*	*
Sex of recipient	*	*	0.092	−0.034

^*Covariate was not chosen by method