Table 2.

Multivariate logistic analysis of factors associated with EGFR mutation

Variables	Category	Odds ratio	95% confidence interval	P-value
Sex	Male
	Female	0.890	0.456–1.739	0.734
Smoking history	Yes
	No	0.454	0.199–1.038	0.061
Performance status	0–1
	2	1.531	0.832–2.817	0.171
HDL-C	≤0.945
	>0.945	0.417	0.227–0.768	0.005

Abbreviations: EGFR, epidermal growth factor receptor; HDL-C, high-density lipoprotein cholesterol.