Operative complications and economic outcomes of cholecystectomy for acute cholecystitis

doi:10.3748/wjg.v25.i48.6916

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Dec 28, 2019 (publication date) through Feb 14, 2025

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World Journal of Gastroenterology

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1007-9327

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

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World J Gastroenterol. Dec 28, 2019; 25(48): 6916-6927
Published online Dec 28, 2019. doi: 10.3748/wjg.v25.i48.6916

Table 6 Relative risk, attributable risk, and number needed to harm analysis

Variable	Risk	95%CI
All, SA vs delayed
Relative risk	4.2x	1.4 to 12.9^a
Attributable risk	14.1%	4.6 to 23.6^a
Number needed to harm	8	5.0 to 12.3^a
Grade 1, SA vs delayed
Relative risk	1.7x	0.5 to 5.1^a
Attributable risk	4.9%	-5.7 to 15.5
Number needed to harm	21	-7.2 to 24.4
Grade 2, SA vs delayed
Relative risk¹	–	–
Attributable risk	26.4%	13.2 to 39.7^a
Number needed to harm	4	3.0 to 5.0^a
Grade 2 or 3², SA vs delayed
Relative risk¹	–	–
Attributable risk	28.3%	12.3 to 44.4^a
Number needed to harm	4	2.9 to 4.6^a

¹Relative risk analysis could not be performed in Grades 2 or 3 due to zero complications in the delayed group.

²Due to a small sample size of the rarer Grade 3 disease, combined analysis of Grades 2 and 3 was performed to represent all moderate and severe cases.

^aStatistically significant. CI: Confidence Interval; SA: Same admission.

Citation: Rice CP, Vaishnavi KB, Chao C, Jupiter D, Schaeffer AB, Jenson WR, Griffin LW, Mileski WJ. Operative complications and economic outcomes of cholecystectomy for acute cholecystitis. World J Gastroenterol 2019; 25(48): 6916-6927
URL: https://www.wjgnet.com/1007-9327/full/v25/i48/6916.htm
DOI: https://dx.doi.org/10.3748/wjg.v25.i48.6916