Artificial intelligence-aided optical biopsy improves the diagnosis of esophageal squamous neoplasm

Table 1 Baseline characteristics of patients and lesions, n (%)

Baseline characteristics	n
Patients	54
Male	39 (72.2)
Female	15 (27.8)
Age, mean (range), years	59.3 (38-77)
Lesions	67
Lesion size, mean, cm	1.26
Location
Upper esophagus	5
Middle esophagus	35
Lower esophagus	27
Macroscopic type
I	3
0-IIa	3
0-IIb	58
0-IIa + IIc	3
Histological diagnosis
Esophageal squamous cell carcinoma	8
HGIN	9
LGIN	8
Inflammatory/hyperplastic lesions	42

HGIN: High-grade intraepithelial neoplasia; LGIN: Low-grade intraepithelial neoplasia.