Table 2.
Clinicopathological characteristics of the colorectal neoplasms.
| Characteristic | Control group (n = 502) | Periodontitis group (n = 76) | P value* |
|---|---|---|---|
| Number, n | 1.4 ± 1.0 | 1.8 ± 1.0 | 0.009 |
| 1 or 2 | 457 (91.0%) | 60 (78.9%) | 0.001 |
| ≥3 | 45 (9.0%) | 16 (21.1%) | |
| Size, mm | 4.7 ± 3.6 | 5.7 ± 3.7 | 0.032 |
| <5 | 301 (60.0%) | 35 (46.1%) | 0.015† |
| 5–9 | 171 (34.1%) | 33 (43.4%) | |
| ≥10 | 30 (6.0%) | 8 (10.5%) | |
| Low-grade dysplasia | 0.284 | ||
| Presence | 496 (98.8%) | 74 (97.4%) | |
| Absence | 6 (1.2%) | 2 (2.6%) | |
| High-grade dysplasia | 1.000 | ||
| Presence | 4 (0.8%) | 0 (0.0%) | |
| Absence | 498 (99.2%) | 76 (100.0%) | |
| Tubular adenoma | 0.454 | ||
| Presence | 489 (97.4%) | 73 (96.1%) | |
| Absence | 13 (2.6%) | 3 (3.9%) | |
| Tubulovillous/villous adenoma | 0.232 | ||
| Presence | 5 (1.0%) | 2 (2.6%) | |
| Absence | 497 (99.0%) | 74 (97.4%) | |
| Cancer | 0.086 | ||
| Presence | 2 (0.4%) | 2 (2.6%) | |
| Absence | 500 (99.6%) | 74 (97.4%) | |
| Advanced colorectal neoplasm | 0.117 | ||
| Presence | 34 (6.8%) | 9 (11.8%) | |
| Absence | 468 (93.2%) | 67 (88.2%) | |
| Appearance | 0.001 | ||
| Flat/depressed lesion | 157 (31.3%) | 10 (13.2%) | |
| Polypoid lesion | 345 (68.7%) | 66 (86.8%) |
Variables shown are numbers (percentages) or expressed as the mean ± standard deviation. *Differences in the categorical variables between the groups were analyzed using Chi-square test or Fisher’s exact test. Continuous variables were compared by Student’s t-test. †linear by linear association X2 test.