Table 5.

Log-rank test and Cox’s proportional hazards regression model for recurrence.

Variable	Univariate analysis		Multivariate analysis
	Sig.a	DFS rate(%)	Sig.a	Exp(B)b	95.0% CIc
Gender (male vs female)	0.054	96.7% vs 97.8%	0.183	1.340	0.871–2.061
Age (≤35 years vs > 35 years)	0.658	97.7% vs 97.4%	0.444	1.171	0.782–1.754
Tumor size (Φ > 0.5 cm vs Φ ≤ 0.5 cm)	0.000	96.7% vs 99.2%	0.003	2.601	1.382–4.896
Lobe dissemination (positive vs. negative)	0.000	91.2% vs 98.0%	0.000	2.649	1.630–4.305
Psammoma bady (positive vs. negative)	0.006	93.1% vs 97.7%	0.121	1.943	0.839–4.497
Capsule invasion (positive vs. negative)	0.019	97.1% vs 98.0%	0.548	0.879	0.578–1.338
Bilateral (positive vs. negative)	0.002	96.2% vs 97.9%	0.128	0.677	0.410–1.118
Tumor number (Multifocality vs. Solitary)	0.000	94.9% vs 95.8%	0.000	3.070	1.973–4.778
CLNM (positive vs. negative)	0.000	95.5% vs 99.1%	0.000	2.914	1.728–4.912

^aSig: significance.

^bExp(B): odds ratio.

^cCI: confidence interval.