Table 4.
Smoking habits, oral hygiene, and saliva biochemistry of peritoneal dialysis (PD) patients and controls.
| PD patients | Controls | P value | |
|---|---|---|---|
| Smoking habits | |||
| Past (%) | 58.3% | 40.9% | 0.331 |
| Present (%) | 16.7% | 22.7% | >0.999 |
| Visual plaque index (%) | 56 (16, 100) | 69 (14, 100) | 0.489 |
| Saliva biochemistry | |||
| Flow rate (mL min−1) | 0.41 (0.05, 1.06) | 0.26 (0.10, 1.04) | 0.432 |
| pH | 8.0 (6.5, 8.0) | 6.8 (6.2, 8.0) | <0.001∗ |
| Urea (mg dL−1) | 110.41 ± 36.64 | 47.85 ± 23.88 | <0.001∗ |
| Phosphorus (mg dL−1) | 22.76 ± 8.19 | 18.58 ± 16.86 | 0.486 |
| IgA (mg dL−1) | 143.0 (126.0, 178.0) | 136.5 (30.0, 167.0) | 0.361 |
| Amylase (U L−1) | 309.45 (127.40, 757.50) | 562.6 (312.90, 571.10) | 0.310 |
Results are prevalence (%), median (min, max) or mean ± SD; PD, peritoneal dialysis. ∗P < 0.05.