Table V.

Multivariate analysis of the factors contributing to recurrence.

Variables	Odds ratio	95% confidence interval	p-value
Gender: male	1.444	0.291–7.160	0.653
Age: <68 years	3.981	1.461–10.851	0.007
Smoking history: former + current	1.076	0.210–5.556	0.927
T status: 1b–4	2.630	0.870–7.949	0.087
N status: positive	10.319	3.623–29.389	<0.001
IGF1R expression: positive	3.153	1.150–8.648	0.026