Primary adenosquamous carcinoma of the esophagus

Table 2 Univariate analysis of the prognosis of the 37 patients with esophageal adenosquamous carcinoma

	Number of patients	Survival rate			MST (mo, 95%CI)	P value
		1-yr	3-yr	5-yr
Gender						0.302
Male	31	64.5%	25.8%	18.4%	20.0 (13.5-26.5)
Female	6	83.3%	55.6%	55.6%	74.0 (0.0-149.4)
Age (yr)						0.448
≤ 60	19	73.7%	34.2%	28.5%	25.0 (11.6-38.4)
> 60	18	60.6%	24.2%	16.2%	19.0 (8.6-29.4)
Location						0.031
Ut	3	100.0%	33.3%	0.0%	20.0 (18.4-21.6)
Mt	29	68.8%	34.5%	30.2%	25.0 (12.8-37.2)
Lt	5	40.0%	0.0%	0.0%	6.0 (1.7-10.3)
Length						0.630
≤ 4 cm	19	73.7%	34.4%	23.0%	28.0 (12.0-44.0)
> 4 cm	18	61.1%	24.4%	24.4%	19.0 (7.4-30.6)
Macroscopic tumor type						< 0.001
Medullary	29	61.9%	27.3%	18.2%	19.0 (11.7-26.3)
Intraluminal	1	0.0%	0.0%	0.0%	1.0
Polyploid	2	100.0%	100.0%	100.0%	-
Ulcerative	2	100.0%	0.0%	0.0%	21.0
Sclerotic	3	100.0%	33.3%	33.3%	26.0 (16.4-35.6)
pT category						0.573
pT1	4	75.0%	25.0%	0.0%	30.0 (3.5-56.5)
pT2	4	50.0%	25.0%	25.0%	12.0 (0.0-38.5)
pT3	23	78.3%	34.5%	28.8%	21.0 (12.4-29.6)
pT4	6	33.3%	16.7%	16.7%	4.0 (0.0-14.8)
pN category						0.002
pN0	17	76.5%	38.2%	25.5%	30.0 (12.8-47.2)
pN1	14	77.9%	31.2%	31.2%	25.0 (9.9-40.1)
pN2	3	33.3%	0.0%	0.0%	11.0 (0.0-25.4)
pN3	3	0.0%	0.0%	0.0%	6.0 (4.4-7.6)
Adjuvant radiotherapy						0.066
No	27	62.7%	23.5%	15.7%	19.0 (11.7-26.3)
Yes	10	80.0%	45.7%	45.7%	32.0
Operation						0.025
Radical	34	70.5%	32.2%	25.0%	25.0 (15.4-34.6)
Palliative	3	33.3%	0.0%	0.0%	5.0 (0.2-9.8)

Ut: Upper third of thoracic esophagus; Mt: Middle third of thoracic esophagus; Lt: Lower third of thoracic esophagus; MST: Median survival time.