Table 1. Survival analysis using Cox proportional hazard models^* with incorporation of curability.

		D/T	P-y	HR	95% CI
Histological type	well, mod	19/49	166.7	1.0	reference
	poor, NEC	5/6	4.1	8.0	2.5–26
	muc	0/3	9.1	-	-
Lymph node metastasis	Negative	7/26	110.8	1.0	reference
	Positive	16/28	50.7	4.0	1.6–11
Lymphatic invasion	Negative	3/18	53.8	1.0	reference
	Positive	21/40	126.1	2.4	0.7–8.7
Venous invasion	Negative	8/29	127.5	1.0	reference
	Positive	16/29	52.4	3.7	1.4–10
MUC1	Negative	8/27	100.6	1.0	reference
	Positive	16/31	79.4	1.7	0.6–4.6
MUC5AC	Negative	11/38	133.1	1.0	reference
	Positive	13/20	46.8	2.5	1.1–6.0
MUC16	Negative	19/53	176.5	1.0	reference
	Positive	5/5	3.4	10	2.8–39
MUC1/MUC5AC	MUC1(−) and MUC5AC(−)	7/24	83.3	1.0	reference
	MUC1(+) and/or MUC5AC(+)	17/34	96.6	1.6	0.6–4.3
MUC1/MUC16	MUC1(−) and MUC16(−)	8/27	100.6	1.0	reference
	MUC1(+) and/or MUC16(+)	16/31	79.4	1.7	0.6–4.6
MUC5AC/MUC16	MUC5AC(−) and MUC16(−)	9/36	131.3	1.0	reference
	MUC5AC(+) and/or MUC16(+)	15/22	48.6	3.6	1.5–8.8

*Curability was included in all the statistical models.

NA: not available, D/T: Deaths/Total, P-y: Person-year, HR: Hazard ratio, 95% CI: 95% confidence interval.