Table 1

The observed features (input variables) and their coding

Variable no.Input variableTypeValues
LP, lamina propria.
1AgeReal number16 to 86
2Female sexBinary0, 1
3Mucosal surfaceOrdinal, categorical0, 1, 2, 3
4Crypt architectureOrdinal, categorical0, 1, 2, 3
5Crypt profilesReal number2 to 8
6Increased LP cellularityBinary0, 1
7Superficially increased LP cellularityBinary0, 1
8Increased lymphoid aggregatesBinary0, 1
9Patchy increased LP cellularityBinary0, 1
10Transmucosally increased LP cellularityBinary0, 1
11Cryptitis: extentOrdinal, categorical0, 1, 2, 3
12Cryptitis: polymorphsOrdinal, categorical0, 1, 2, 3
13Crypt abscesses: extentOrdinal, categorical0, 1, 2, 3
14Crypt abscesses: polymorphsOrdinal, categorical0, 1, 2, 3
15Increased LP polymorphsBinary0, 1
16Epithelial changesOrdinal, categorical0, 1, 2, 3
17Mucin depletionOrdinal, categorical0, 1, 2, 3
18Intraepithelial lymphocytesBinary0, 1
19Subepithelial collagenBinary0, 1
20LP granulomasBinary0, 1
21Submucosal granulomasBinary0, 1
22Basal histiocytesBinary0, 1