Table 2.

Multivariate logistic regression analyses of variables related to EGFR mutation status

Variable	Category	Regression coefficient	Standard error	Odds ratio (95% CI)	P‐value
Diversity index in tumor	High (>364a)	1.91	.93	6.76 (1.09‐41.80)	.04
Age	65 or more	.74	.89	2.10 (.37‐11.98)	.40
Sex	Female	1.11	.88	3.04 (.54‐17.22)	.20
Smoking	Non‐smoker	2.15	.93	8.57 (1.38‐53.32)	.02
pStage	llb/III	−.29	.86	.75 (.14‐4.07)	.74
Constant		−2.68	1.04	.07	.01

CI, Confidence interval.

^aMedian value.

The significant P‐values are shown in bold (P < .05).