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Retrospective Cohort Study
©The Author(s) 2025.
World J Gastrointest Surg. Oct 27, 2025; 17(10): 109729
Published online Oct 27, 2025. doi: 10.4240/wjgs.v17.i10.109729
Table 1 Comparison of general data between the two groups, mean ± SD/n (%)
GroupnSex
Age (years)Tumor location
Tumor staging
Histological classification
Male
Female
Mid-thoracic
Upper thoracic
Stage I
Stage IIa
Squamous carcinoma
Adenocarcinoma
Others
Observation group6637 (56.06)29 (43.94)62.33 ± 5.7842 (63.64)24 (36.36)35 (53.03)31 (46.97)17 (25.76)25 (37.88)24 (36.36)
Control group6133 (54.10)28 (45.90)61.54 ± 6.4036 (59.02)25 (40.98)39 (63.93)22 (36.07)15 (24.59)30 (49.18)16 (26.23)
χ2/t0.0490.7100.2861.5501.956
P value0.8240.4790.5930.2130.371


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