Endoscopic stenting and concurrent chemoradiotherapy for advanced esophageal cancer: A case-control study

Table 2 Clinical and demographic characteristics of 3-dimensional conformal chemoradiotherapy-treated patients and controls

	3D-CRT(n = 67)	Control(n = 32)	P value
Gender
Male	53	24	0.796
Female	14	8
Age (mean ± SD, yr)	56.3 ± 12.7	58.6 ± 12.1	0.435
Karnofsky performance status
50-70	37	21	0.386
10-49	30	11
Dysphagia grade
3	6	4	0.673
4	46	23
5	15	5
Stage at diagnosis
III	56	29	0.539
IV	11	3
Tumor type
SCC	53	23	0.579
Adenocarcinoma	6	4
Unspecified	8	6
Location
Thoracic - middle	42	20	1.000
Thoracic - lower	25	12
Gross tumor volume (mean ± SD, m3)	44.6 ± 10.2	48.5 ± 11.1	0.077
Length (mean ± SD, cm)	7.3 ± 1.6	7.1 ± 1.8	0.299

SCC: Squamous cell carcinoma; 3D-CRT: 3-dimensional conformal chemoradiotherapy.