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Case Control Study
Copyright: ©Author(s) 2026.
World J Gastroenterol. Sep 7, 2026; 32(33): 118486
Published online Sep 7, 2026. doi: 10.3748/wjg.118486
Table 1 Comparisons of patients with and without chicken skin mucosa, n (%)
Characteristic
CSM group (n = 138)
Non-CSM group (n = 2099)
OR (95%CI)
P value
Age (year), mean ± SD59.27 ± 10.8956.90 ± 11.642.37 (0.373-4.367)0.02
Sex1.031 (0.729-1.459)0.863
Male77 (55.8)1187 (56.6)
Female61 (44.2)912 (43.4)
No. of adenomas--3.624 (2.345-5.600)< 0.001
Single24 (17.4)959 (45.7)
Multiple (n ≥ 2)114 (82.6)1140 (54.3)
Table 2 Characteristics of colorectal adenomas with or without chicken skin mucosa, n (%)
Characteristic
Adenoma with CSM (n = 130)
Adenoma without CSM (n = 2107)
OR (95%CI)
P value
Size (cm)1.0 (1.0, 1.5)0.5 (0.5, 0.6)-6.968 (-8.187 to -5.749)< 0.001
Morphology11.715 (2.884-47.585)< 0.001
Flat (IIa, Is, LST)2 (1.5)326 (15.5)
Protruding (Ip, Isp)128 (98.5)1781 (84.5)
Location7.958 (4.854-13.004)< 0.001
Proximal colon19 (14.6)1215 (57.7)
Distal colon111 (85.4)892 (42.3)
Histology< 0.001
Tubular adenoma61 (46.9)2065 (98.0)-
Villous or tubulovillous adenoma39 (30.0)24 (1.1)
High-grade neoplasia30 (23.1)18 (0.9)
Adenoma type71.757 (43.325-118.846)< 0.001
Non-advanced adenoma20 (15.7)1957 (92.9)
Advanced adenoma110 (84.3)150 (7.1)
Table 3 Multivariable logistic regression analysis
CharacteristicMultivariable logistic regression analysis
OR (95%CI)
P value
Age, year0.978 (0.950-1.007)0.136
Sex0.630 (0.334-1.190)0.154
Single vs multiple adenomas1.702 (0.806-3.591)0.163
Size, cm1.086 (1.020-1.157)0.010
Proximal vs distal colon52.214 (14.781-184.450)< 0.001
Flat vs protruding2.555 (0.508-12.837)0.255
Histology33.934 (17.441-66.023)< 0.001
Non-advanced vs advanced adenoma81.670 (29.902-223.062)< 0.001
Table 4 Immunohistochemistry score for transmembrane member 16A among different groups, mean ± SD
Group
Scores of IHC
OR (95%CI)
P value
CSM status
Adenoma with CSM (n = 37)5.54 ± 3.251.33 (0.103-2.557)0.034
Adenoma without CSM (n = 38)4.21 ± 1.85--
Adenoma type
Advanced adenoma (n = 39)6.10 ± 2.772.57 (1.488-3.652)< 0.001
Non-advanced adenoma (n = 36)3.53 ± 1.87--


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