Table 3. Multivariable Analysis for ORs with 95% CIs of Thyroid Cancer According to Clinical Characteristics.

	Adjusted OR	P	Adjusted OR*	P	Adjusted OR†	P
Age < 20 or > 60	0.694 (0.522, 0.923)	0.012	0.698 (0.524, 0.928)	0.013	0.695 (0.523, 0.924)	0.012
Male gender	1.394 (1.071, 1.814)	0.013	1.382 (1.062, 1.797)	0.016	1.365 (1.050, 1.774)	0.020
1st degree family history	1.618 (1.088, 2.405)	0.018	1.612 (1.084, 2.397)	0.018	1.655 (1.114, 2.458)	0.013
Solitary lesion on US	1.182 (0.933, 1.498)	0.167	1.180 (0.931, 1.495)	0.172	1.193 (0.942, 1.512)	0.143
Serum TSH level	1.171 (1.033, 1.327)	0.013
TSH grade				0.029
0.3–1.39			1
1.4–2.49			1.317 (1.031, 1.681)	0.027
2.5–4.99			1.415 (1.029, 1.947)	0.033
TSH grade
0.3–2.49					1
2.5–4.99					1.258 (0.931, 1.699)	0.135
C-statistics	0.591 (0.560, 0.622)		0.586 (0.555, 0.616)		0.580 (0.550, 0.610)

Numbers in parentheses are 95% CIs. ^*TSH levels were categorized into three groups: relatively low in normal range, mid-normal, relatively high in normal range, ^†TSH levels were categorized into two groups: low and mid normal, relatively high in normal range. 1st degree = first-degree, CIs = confidence intervals, OR = odds ratio, TSH = thyroid stimulating hormone, US = ultrasonography