Table II.

Prognostic effect of clinicopathological factors on disease-free survival in NSCLC.

	Univariate analysis			Multivariate analysis
Variables	HR	95% CI	P-value	HR	95% CI	P-value
Age (years)
≥70	1.756	1.148–2.684	0.009	1.753	1.127–2.727	0.013
Gender
Male	2.382	1.513–3.751	<0.001	1.789	0.954–3.354	0.070
Smoking history
Ever	2.001	1.258–3.184	0.003	1.357	0.691–2.665	0.375
Tumor status
T2/T3/T4	2.762	1.797–4.244	<0.001	1.716	1.063–2.770	0.027
Lymph node status
N1/N2	4.096	2.667–6.289	<0.001	3.493	2.144–5.689	<0.001
Histology
Non-Ad	1.916	1.209–3.037	0.006	0.773	0.445–1.343	0.361
MPV
≤8.50 fL	1.813	1.138–2.888	0.012	1.713	1.070–2.742	0.025

NSCLC, non-small–cell lung cancer; HR, hazard ratio; 95% CI, 95% confidence interval; MPV, mean platelet volume; Ad, adenocarcinoma.