Table 3.

Cox proportion hazards model for RFS in patients with EGFR mutations (n = 54)

Univariate
VariableHR (95% CI)P
Age: ≥70 (n = 21) vs. <70 (n = 33)0.85 (0.22–2.82)0.795
Sex: male (n = 12) vs. female (n = 42)3.48 (0.99–11.6)0.050
Smoking: current/former (n = 15) vs. never (n = 39)1.60 (0.42–5.30)0.466
Aromatase: high (n = 15) vs. low (n = 39)4.97 (1.50–19.0)0.009
Pathologic stage: ≥ II (n = 13) vs. I (n = 41)6.55 (1.98–25.0)0.002

NOTE: Multivariate analysis was not performed because of the small number of recurrences.