Table 2.

 Univariate and multivariate analysis for the prognosis of asbestos and non‐asbestos‐related lung cancer

Univariate analysis
Factors		n	MST (95% CI)	Log‐rank test
Asbestos	Related	152	16.2 months (8.3–24.1)	P = 0.673
	Non‐related	431	17.2 months (15.1–19.3)
Age (years)	≤70	278	20.8 months (15.9–25.7)	P < 0.001
	71+	305	14.1 months (11.7–16.5)
Gender	Male	457	15.4 months (13.7–17.1)	P < 0.001
	Female	126	24.5 months (17.8–31.2)
Pathology	NSCLC	493	18.1 months (15.4–20.8)	P = 0.001
	SCLC	90	13.4 months (11.1–15.7)
Stage	I–II	179	21.5 months (17.7–25.3)	P < 0.001
	III–IV	399	13.4 months (11.1–15.7)

Multivariate analysis
Factors	Exp (β)	95% CI	P‐values
Asbestos	1.051	0.816–1.353	0.699
Age	1.625	1.312–2.013	<0.001
Gender	1.686	1.255–2.273	0.001
Pathology	1.290	0.973–1.710	0.077
Stage	1.945	1.548–2.443	<0.001

CI, confidence interval; MST, median survival term; NSCLC, non‐small‐cell lung cancer; SCLC, small‐cell lung cancer.