Table 2.

Univariate Analysis for the Prognosis of 129 Patients

Variables	No. of Patients	Survival Rate, %			MST, mo (95% CI)	p value
		1-y	3-y	5-y
Sex						0.368
Male	95	87.1	20.1	5.0	24(21.314–26.686)
Female	34	96.8	35.0	3.9	27(21.820–32.180)
Age						0.439
≤60	53	94.2	18.4	2.3	24(21.852–26.148)
>60	76	86.4	27.8	6.5	27(22.588–31.412)
Alcohol abuse						0.028
Yes	72	83.1	16.5	3.3	23(20.780–25.222)
No	57	98.1	33.9	6.8	27(24.785–29.215)
Smoking						0.091
Yes	76	86.5	16.3	3.3	24(21.418–26.582)
no	53	94.0	34.4	6.9	27(22.584–31.416)
Family history of malignancy						0.988
Yes	27	92.6	23.3	4.7	25(20.565–29.435)
No	102	90.8	22.9	4.8	26(23.598–28.402)
Location						0.311
Upper	19	94.4	32.8	6.6	27(19.611–34.389)
Middle	74	86.3	26.4	6.2	24(19.338–28.662)
Lower	36	93.9	13.8	0.0	24(22.281–25.719)
Length, cm						<0.001
≤4	66	93.7	38.9	7.4	29(24.862–33.138)
>4	63	85.3	7.8	1.9	22(19.073–24.927)
Macroscopic tumor type						0.109
Medullary	73	87.4	21.7	5.0	24(21.094–26.906)
Ulcerative	18	87.8	26.2	8.7	31(17.893–44.107)
Mushroom	24	95.5	41.8	5.2	29(25.684–32.316)
Constrictive	14	92.9	7.1	0.0	20(17.555–22.445)
Treatment modality						0.746
No surgery	81	91.2	22.2	6.4	25(21.993–28.007)
Surgery	48	86.8	27.0	2.5	26(19.864–32.136)
TNM stage						<0.001
I–II	56	98.1	44.2	11.0	32(28.639–35.361)
III	73	83.3	8.6	0.0	21(19.195–22.705)
T stage						<0.001
T1-2	51	95.9	48.6	12.1	33(26.744–39.256)
T3-4	78	85.5	7.7	0.0	23(20.857–25.143)
N stage						<0.001
N0	44	86.9	33.9	8.5	30(26.154–33.846)
N1	60	84.5	46.8	0.0	24(20.529–27.471)
N2	25	76.0	4.6	0.0	18(14.729–21.271)

Abbreviations: MST, median survival time; CI, confidence interval.