Modified natural orifice specimen extraction type IV surgery for rectosigmoid cancer: A retrospective clinical study

doi:10.4240/wjgs.v18.i3.115484

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World Journal of Gastrointestinal Surgery

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1948-9366

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Study

Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastrointest Surg. Mar 27, 2026; 18(3): 115484
Published online Mar 27, 2026. doi: 10.4240/wjgs.v18.i3.115484

Table 5 Multivariable linear regression analysis results of factors associated with operative cost

Variables	Unstandardized β (95%CI)	Standardized β	P value
Gender	-3452 (-10756 to 3852)	-0.115	0.341
Age (years)	-129 (-401 to 143)	-0.113	0.334
BMI (kg/m²)	236 (-1153 to 1626)	0.045	0.729
Distance from the anus (cm)	713 (88-1338)	0.262	0.025^a
Modified surgical approach	-21307 (-28742 to -13872)	-0.726	< 0.001^b
Intraoperative blood loss (mL)	-125 (-276 to 25)	-0.204	0.099
Tumor size (cm)	3912 (520-7304)	0.270	0.024^a

^aP < 0.05.

^bP < 0.001.

Model summary: r = 0.804, R² = 0.647, adjusted R² = 0.569, Durbin-Watson = 1.302. BMI: Body mass index; CI: Confidence interval.

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Citation: Li YB, Zhu C, Xia LG, Sun X, Zhong KL, Li Y. Modified natural orifice specimen extraction type IV surgery for rectosigmoid cancer: A retrospective clinical study. World J Gastrointest Surg 2026; 18(3): 115484
URL: https://www.wjgnet.com/1948-9366/full/v18/i3/115484.htm
DOI: https://dx.doi.org/10.4240/wjgs.v18.i3.115484

Li YB, Zhu C, Xia LG, Sun X, Zhong KL, Li Y. Modified natural orifice specimen extraction type IV surgery for rectosigmoid cancer: A retrospective clinical study. World J Gastrointest Surg 2026; 18(3): 115484 [DOI: 10.4240/wjgs.v18.i3.115484]

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