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Retrospective Cohort Study
Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Jun 27, 2026; 18(6): 120496
Published online Jun 27, 2026. doi: 10.4240/wjgs.120496
Table 1 Comparison of general information between the two groups of patients, n (%)/mean ± SD
Variable
Observation group (n = 59)
Control group (n = 59)
χ²/t
P value
Gender0.3060.580
Male30 (50.85)33 (55.00)
Female29 (49.15)27 (45.00)
Age (years)70.26 ± 6.0570.43 ± 6.100.1360.892
Body mass index (kg/m2)22.86 ± 1.3823.01 ± 1.400.5910.556
American Society of Anesthesiologists classification0.1360.712
Level I30 (50.85)32 (53.33)
Level II29 (49.15)28 (46.67)


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