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Retrospective Study
Copyright ©The Author(s) 2025.
World J Gastrointest Surg. Nov 27, 2025; 17(11): 108345
Published online Nov 27, 2025. doi: 10.4240/wjgs.v17.i11.108345
Figure 1
Figure 1 Standardized mean difference in the covariates used before (blue) and after (red) propensity score matching. The black line indicates a standardized mean difference of 0.100. ASA: American Society of Anesthesiologists; CCI: Charlson comorbidity index; SMD: Standardized mean difference.