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Retrospective Cohort Study
Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Sep 27, 2026; 18(9): 121221
Published online Sep 27, 2026. doi: 10.4240/wjgs.121221
Table 3 Primary and key secondary recovery outcomes, n (%)/mean ± SD/median (interquartile range)
Variable
Control group
Observation group
Test
P value
Time to first ambulation (hours)31 (24.80-36)25 (20.20-32.50)Mann-Whitney U0.002
Time to first flatus (hours)60.50 (49-72)58 (50-67.80)Mann-Whitney U0.336
Time to first oral intake (hours)93.50 (84.80-101.20)74.50 (66.20-87.20)Mann-Whitney U4.726e-06
Drain duration (hours)157 (135-185.20)132 (104.80-156.80)Mann-Whitney U< 0.001
Postoperative LoS (days)12.60 (10.90-14.80)11.80 (9.20-13.80)Mann-Whitney U0.005
Recovery speed index (z-mean)0.25 ± 0.52-0.30 ± 0.39Welch t4.534e-09
30-day readmissionχ2 test0.523
No53 (88.30)46 (92)
Yes7 (11.70)4 (8)


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