Table 4. Multivariable cox regression analyses of survival in male thyroid cancer.

Characteristics	Variable	Cancer-specific survival			Overall survival
		HR (95% CI)	P		HR (95% CI)	P
Tumor size	≤1 cm	1	–		1	–
	>1 cm	3.354 (2.457–4.579)	<0.001		0.984 (0.864–1.120)	0.802
Race	Black	1	–		1	–
	White	0.947 (0.596–1.505)	0.819		0.776 (0.630–0.955)	0.016
	Other	0.933 (0.535–1.626)	0.807		0.742 (0.572–0.963)	0.025
Age, years	<55	1	–		1	–
	≥55	4.003 (3.161–5.070)	<0.001		4.499 (3.967–5.102)	<0.001
Median income	<$55,000	1	–		1	–
	≥$55,000	0.635 (0.493–0.816)	<0.001		0.785 (0.687–0.897)	<0.001
Surgery performed	No	1	–		1	–
	Yes	0.063 (0.045–0.088)	<0.001		0.192 (0.152–0.242)	<0.001
histology recode/pathological type	Medullary	1	–		1	–
	HCC	0.539 (0.348–0.836)	0.006		1.017 (0.737–1.403)	0.918
	Follicular	0.247 (0.159–0.385)	<0.001		0.814 (0.606–1.094)	0.173
	Pap with Fv	0.107 (0.073–0.157)	<0.001		0.719 (0.558–0.928)	0.011
	Papillary	0.171 (0.126–0.231)	<0.001		0.750 (0.592–0.951)	0.028
T stage	Tx	1.912 (0.782–4.677)	0.156		0.677 (0.314–1.463)	0.321
	T0	0.479 (0.177–1.296)	0.147		0.783 (0.462–1.326)	0.363
	T1	0.036 (0.027–0.050)	<0.001		0.391 (0.316–0.484)	<0.001
	T2	0.068 (0.048–0.095)	<0.001		0.441 (0.351–0.554)	<0.001
	T3	0.154 (0.121–0.196)	<0.001		0.498 (0.413–0.601)	<0.001
	T4	1	–		1	–
N stage	Nx	0.642 (0.414–0.996)	0.048		1.214 (0.864–1.707)	0.263
	N0	0.258 (0.225–0.296)	<0.001		0.965 (0.822–1.133)	0.664
	N1	1	–		1	–
M stage	Mx	0.044 (0.024–0.081)	<0.001		0.432 (0.260–0.718)	0.001
	M0	0.024 (0.020–0.028)	<0.001		0.364 (0.291–0.457)	<0.001
	M1	1	–		1	–
Combined summary stage	Localized	1	–		1	–
	Regional	3.688 (3.084–4.411)	<0.001		1.135 (0.998–1.291)	0.054
	Distant	56.280 (47.287–66.984)	<0.001		2.153 (1.639–2.829)	<0.001

HCC, Hurthle cell carcinoma; Pap with Fv, papillary with follicular variant.