Correlation between sarcopenia and esophageal stenosis following endoscopic submucosal dissection and construction of a postoperative stenosis risk model

Table 2 Characterization of lesions and postoperative pathological features, n (%)

Characteristics	Non-sarcopenia (n = 358)	Sarcopenia (n = 141)	P value
Histological classification			0.427
HGA	136 (37.99)	59 (41.84)
ESCC	212 (62.01)	82 (58.15)
Lesion morphology			0.708
II a	53 (14.80)	18 (12.77)
II b	237 (66.20)	93 (65.96)
II c	7 (1.96)	5 (3.55)
Combined	61 (17.04)	25 (17.73)
Location			0.023
Upper	60 (16.76)	41 (29.08)
Middle	109 (30.45)	37 (26.24)
Lower	184 (51.40)	62 (43.97)
Entire	5 (1.40)	1 (0.71)
Circumferential range			< 0.001
< 3/4	295 (82.40)	95 (67.38)
≥ 3/4	63 (17.60)	46 (32.62)
Lesion length, mm, M (IQR)	37.0 (30.0, 50.0)	45.0 (34.0, 53.0)	0.004
Muscular injury	41 (11.5)	25 (17.73)	0.062
Depth			0.447
M1	293 (81.84)	115 (81.56)
M2	42 (11.73)	12 (8.51)
M3	16 (4.47)	10 (7.09)
SM1	7 (1.96)	4 (2.84)
R0 resection	350 (97.77)	137 (97.16)	0.943

M: Median; IQR: Interquartile range; HGA: High-grade intraepithelial neoplasia; ESCC: Esophageal squamous cell carcinoma; Combined: Comprising two or more lesion morphologies; II a: Superficial elevated type; II b: Superficial flat type; II c: Superficial depressed type; M1: Mucosal epithelial layer; M2: Lamina propria of mucosa; M3: Muscularis mucosae; SM1: Invasion of submucosa with a distance from the mucosal layer ≤ 200 μm.