Clinical Implications of Age in Differentiated Thyroid Cancer: Comparison of Clinical Outcomes between Children and Young Adults

Table 10

Univariate and multivariate analyses of DFS in three different age groups with tumor size of 2 to 4 cm.

	Univariate		Multivariate
	HR (95% CI)	value	HR (95% CI)	value
Age (years)
< 20	Ref.		Ref.
20–29	0.514 (0.264–1.002)	0.051	0.554 (0.283–1.085)	0.085
30–39	0.292 (0.151–0.563)	<0.001	0.305 (0.158–0.588)	<0.001
Bilaterality	1.770 (1.072–2.922)	0.026	1.758 (1.061–2.913)	0.029
N stage
N0	Ref.	-
N1a	1.468 (0.818–2.634)	0.198
N1b	2.117 (1.178–3.805)	0.012

Data are expressed as hazard ratio (HR) and 95% confidence interval (CI). A statistically significant difference was defined as . N, node.