Table 2.

Cox proportion hazards model for RFS and OS (n = 110)

UnivariateMultivariate
VariableHR (95% CI)PHR (95% CI)P
RFS
 Age (≥70 vs. <70)1.49 (0.71–3.17)0.296
 Sex (male vs. female)2.30 (1.09–5.06)0.0292.49 (1.13–5.74)0.024
 Smoking (current or former vs. never)1.05 (0.49–2.21)0.907
EGFR mutation (positive vs. negative)0.72 (0.32–1.51)0.382
 Aromatase (high vs. low)3.01 (1.35–6.64)0.0082.37 (1.05–5.31)0.039
 Pathologic stage (≥ II vs. I)5.33 (2.53–11.5)<0.0013.36 (1.50–7.70)0.003
OS
 Age (≥70 vs. <70)2.85 (1.06–8.97)0.041
 Sex (male vs. female)2.74 (1.04–7.97)0.038
 Smoking (current or former vs. never)0.76 (0.28–1.98)0.573
EGFR mutation (positive vs. negative)0.25 (0.06–0.78)0.015
 Aromatase (high vs. low)4.20 (1.49–12.1)0.007
 Pathologic stage (≥II vs. I)3.54 (1.35–9.46)0.011

NOTE: Multivariate analysis for OS was not performed because of the small number of events (deaths).