New Inference Procedures for Semiparametric Varying-Coefficient Partially Linear Cox Models

Table 4

Applied to SUPPORT data. Estimation results of significant binary variables using the SCAD penalty.

Risk factor	Estimator	Variance × 10^−3
Sex	0.0006	0.0178
Disease group
ARF	0.0007	0.0247
CHF	0.0011	0.0309
Cirrhosis	0.0018	0.0450
Colon cancer	0.0034	0.0580
Lung cancer	0.0042	0.0585
Coma	0.0074	0.1410
COPD	0.0017	0.0344
Race
Asian	−0.0002	0.0414
Black	0.0006	0.0232
Hispanic	0.0008	0.0421