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Retrospective Cohort Study
©The Author(s) 2025.
World J Gastrointest Surg. Dec 27, 2025; 17(12): 111450
Published online Dec 27, 2025. doi: 10.4240/wjgs.v17.i12.111450
Table 4 Comparison of patients undergoing observation and surgery
Right colon (n = 45)
Left colon (n = 208)
Observation (n = 41)
Surgery (n = 4)
P value
Observation (n = 154)
Surgery (n = 54)
P value
Gender, n (%)
    Female20 (48.8)1 (25)0.36388 (57.1)17 (31.5)0.001
    Male21 (51.2)3 (75)66 (42.9)37 (68.5)
Age (year; mean)49.32 ± 15.6548.75 ± 16.580.9561.47 ± 14.0962.87 ± 13.430.52
Age group, n (%)0.957
    ≤ 5021 (51.2)2 (50)0.62135 (22.7)12 (22.2)
    50-7016 (39)1 (25)71 (46.1)24 (44.4)
    ≥ 704 (9.8)1 (25)48 (31.2)18 (33.4)
CCI (mean)1.02 ± 1.441 ± 1.410.972.5 ± 1.932.75 ± 2.180.42
Immunosuppression, n (%)3 (7.3)-0.5759 (5.8)5 (9.3)0.001
Prior finding, n (%)
    Abscess7 (17.1)3 (75)0.00116 (10.4)9 (16.7)0.001
    Bleeding--5 (3.2)1 (1.9)
    Fistula--- 3 (5.6)
    Obstruction1 (2.4)-3 (1.9)4 (7.4)
    Perforation1 (2.4)-32 (20.8)26 (48.1)
    Peritonitis-1 (25)-4 (7.4)
    Sole persistent abdominal pain32 (78)-98 (63.6)7 (13)
Hinchey, n (%)
    1A30 (73.2) -0.00192 (59.7)4 (7.4)0.001
    1B10 (24.4)1 (25)34 (22.1)5 (9.3)
    21 (2.4)1 (25)24 (15.6)18 (33.3)
    3-2 (50)4 (2.6)23 (42.6)
    4---4 (7.4)
Number of episodes, n (%)-
    141 (100)4 (100)141 (91.6)30 (55.6)0.389
    2--13 (8.4)16 (29.6)
    ≥ 3---8 (14.8)
Percutaneous drainage, n (%)1 (2.4)1 (25)0.03723 (14.9)14 (25.9)0.069
Accompanying lesion on colonoscopy, n (%)1 (2.4)1 (25)21 (13.5)11 (19.4)
    Polyp1 (2.4)-0.00519 (12.3)3 (5.6)0.001
    Malignancy-1 (25)1 (0.6)8 (14.8)
    Ulcerative colitis--1 (0.6)-
The mean length of hospital stays (day), (range)3.49 ± 0.845.75 ± 2.060.114.68 ± 1.57.74 ± 4.60.001
Mortality, n (%)----3 (5.6)-


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