TABLE 2.
The characteristics of digestive tract cancer patients by the cancer sites.
| Tongue/pharyngeal (n = 13) | Esophageal (n = 12) | Gastric (n = 10) | Colorectal (n = 24) | Control subjects (n = 118) | |
| Age, mean ± SD | 62.5±10.6 | 68.4±7.8 | 70.5±9.8 | 65.9±10.9 | 66.4±10.3 |
| Male, n (%) | 12 (92.3) | 8 (66.7) | 6 (60) | 16 (66.7) | 84 (71.2) |
| BMI, mean ± SD | 20.5±2.7** | 20.8±3.2** | 20.8±2.1** | 23±3.2 | 23.5±3.5 |
| Current smoking, n (%) | 7 (58.3)∗∗ | 3 (25) | 1 (10) | 3 (12.5) | 21 (17.8) |
| Current drinking, n (%) | 9 (75) | 5 (45.5) | 4 (40) | 14 (58.3) | 70 (59.3) |
| Number of teeth, mean ± SD | 19.8±9.9 | 19.2±9.9 | 20.9±9.5 | 22.1±8.9 | 23.3±7.0 |
| Number of decayed teeth, mean ± SD | 3.0±3.8** | 1.2±2.0 | 0±0* | 0.5±1.2 | 0.8±1.5 |
| PPD (mm), mean ± SD | 1.8±0.4 | 2.1±0.6 | 1.7±0.7 | 1.8±0.7 | 1.8±0.6 |
| Teeth with BOP (%), mean ± SD | 37.1±25.5** | 40.2±27.3** | 23.3±27.2 | 28.3±22.3** | 15.7±19.3 |
| Mean plaque index, mean ± SD | 1.1±1.1 | 1.2±0.9 | 0.3±0.3* | 0.4±0.4* | 0.7±0.6 |
SD, standard deviation; BMI, body mass index; PPD, periodontal pocket depth; BOP, bleeding on probing. Significant differences were respectively determined between each patient group and control subjects using the Mann–Whitney U-test and the Fisher’s exact test. *P < 0.05 and ∗∗P < 0.01. Fifteen individuals with ≤8 teeth were excluded in PPD, percentage of teeth with BOP, and mean plaque index.