- aCRC colorectal cancer, AP adenomatous polyposis, CD celiac disease, CRA colorectal adenoma, HC healthy controls, IBD inflammatory bowel disease. bGC-MS gas
chromatography-mass spectrometry, HPLC high-performance liquid chromatography, FL fluorescence, 1H NMR 1H nuclear magnetic resonance spectroscopy, UPLC-MS
ultra-performance liquid chromatography-tandem mass spectrometry, GLC gas-liquid chromatography. cC2 acetic acid, C3 propionic acid, C4 butyric acid. dRefer to
the text for the definition of CRC risk and incidence category. eValues in this paper were measured on enema samples, not feces. Therefore, they used in qualitative
analysis. fMore details are provided in the article. gRemoved from quantitative analysis as the reported SCFA values could not be converted to mean and SD. hRemoved
from meta-analysis due to insufficient data on SCFA measurement method. iSCFAs were measured in only a subset of these subjects (n = 25 large/small adenoma and
n = 23 adenoma-free). jCombined values of males and females
