Clinical Outcomes of Endoscopic Submucosal Dissection for Early Esophageal Squamous Cell Neoplasms: A Retrospective Single-Center Study in China

Table 1

Patient and lesion characteristics.

	Combined	Intramucosal invasive ESCC	HGIN	P value
Number of patients	296	79	217
Age (years)	61.4 (7.8)	61.4 (8.3)	61.4 (7.7)	0.947
Male/female	202/94	54/25	148/69	0.980
Hot-eating habit	141 (47.6%)	34 (43.0%)	107 (49.3%)	0.339
Number of lesions	307	79	228
Location
Cervical esophagus	0	0	0
Upper thoracic esophagus	22 (7.2%)	6 (7.6%)	16 (7.0%)
Middle thoracic esophagus	181 (59.0%)	46 (58.2%)	135 (59.2%)
Lower thoracic esophagus	100 (32.6%)	27 (34.2%)	73 (32.0%)
Abdominal esophagus	4 (1.3%)	0	4 (1.8%)
Resected specimen diameter (cm)	3.0 (2.5–4.0)	3.8 (1.5)	3.0 (2.5–4.0)	0.008
Circumference of the lumen
<1/2	223 (72.6%)	48 (60.8%)	175 (76.8%)	0.006
<3/4	33 (10.7%)	10 (12.7%)	23 (10.1%)	0.525
≥3/4	51 (16.6%)	21 (26.6%)	30 (13.2%)	0.006

ESCC: esophageal squamous cell carcinoma; HGIN: high-grade intraepithelial neoplasia.