Table 3.
Chi-square and Fischer's exact analyses for the clinicopathological characteristics of polyps in relation to the sCD26 positivity
| Variable | Mean ± SD | nsCD26+/nt | sCD26+ rate | p |
|---|---|---|---|---|
| sCD26 (ng/mL) | ||||
| Number | ||||
| 1-2 | 577.6 ± 244.3 | 28/84 | 33.3 | 0.807 |
| 3 or more | 624.6 ± 256.1 | 7/24 | 29.2 | |
| Size | ||||
| ≤ 0.5 cm | 525.2 ± 208.1 | 11/32 | 34.4 | |
| 0.6 - 1 cm | 673.9 ± 298.7 | 6/28 | 21.4 | 0.339 |
| > 1 cm | 579.9 ± 226.7 | 18/48 | 37.5 | |
| Location | ||||
| rectum | 549.0 ± 190.0 | 7/24 | 29.2 | |
| sigma | 617.1 ± 273.7 | 13/44 | 29.5 | |
| left colon | 571.7 ± 194.5 | 7/21 | 33.3 | 0.475 |
| transverse colon | 427.0 ± 157.6 | 4/6 | 66.7 | |
| right colon | 662.4 ± 324.5 | 4/13 | 30.8 | |
| Morphology | ||||
| sessile | 592.8 ± 264.4 | 18/64 | 28.1 | |
| pediculated | 585.3 ± 230.9 | 15/39 | 38.5 | 0.517 |
| flat | 548.6 ± 126.5 | 2/5 | 40.0 | |
| Histology | ||||
| hyperplastic | 560.4 ± 201.3 | 4/18 | 22.2 | 0.413 |
| adenomas | 597.2 ± 256.1 | 30/88 | 34.1 | |
| Detailed histology | ||||
| hyperplastic | 560.4 ± 201.3 | 4/18 | 22.2 | |
| tubular | 605.3 ± 259.9 | 24/72 | 33.3 | 0.358 |
| villous | 612.6 ± 305.8 | 2/6 | 33.3 | |
| tubulovillous | 529.7 ± 207.5 | 4/10 | 40.0 | |
| Dysplasia | ||||
| no dysplasia | 560.4 ± 201.3 | 4/18 | 22.2 | |
| low-grade dysplasia | 598.7 ± 250.5 | 27/83 | 32.5 | 0.056 |
| high-grade dysplasia | 562.9 ± 293.1 | 3/5 | 60.0 | |
| Adenomas | ||||
| non-advanced | 633.9 ± 286.9 | 9/40 | 22.5 | 0.048* |
| advanced | 566.7 ± 225.8 | 20/48 | 41.7 | |
SD: standard deviation; nsCD26+: number of individuals with sCD26 levels ≤ 460 ng/mL; nt: total number of individuals per group; sCD26+ rate: sCD26 positivity rate.