Table 2.
Descriptive statistics for oral function by CKD stage (N = 109)
| Overall | Stage 3a | Stage 3b | Stage 4 | Stage 5 | p for trend | ||
|---|---|---|---|---|---|---|---|
| Oral function, mean ± SD or median (IQR) | ODK (pa)/sec | 6.0 (4.8–6.7) | 6.2 (5.8–6.7) | 6.0 (4.8–6.8) | 6.2 (4.8–6.9) | 5.4 (3.5–6.3) | 0.113 |
| ODK (ta)/sec | 5.8 (4.9–6.4) | 6.0 (5.2–6.5) | 5.6 (5.1–6.3) | 5.9 (4.9–6.6) | 5.6 (4.7–6.2) | 0.386 | |
| ODK (ka)/sec | 5.2 (4.0–6.0) | 5.6 (4.4–6.0) | 5.5 (4.0–6.1) | 5.2 (3.9–6.2) | 5.0 (3.6–6.2) | 0.459 | |
| Mastication ability | 150.0 ± 61.5 | 166.0 ± 67.5 | 153.0 ± 66.0 | 142.7 ± 55.0 | 140.1 ± 62.2 | 0.161 | |
| RSST number of times | 2.0 (1.0–4.0) | 2.4 ± 1.8 | 2.7 ± 2.1 | 2.9 ± 2.5 | 2.1 ± 1.4 | 0.746 | |
| Tooth condition, median (IQR) | Number of teeth | 22.0 (9.0–26.0) | 24.5 (15.8–26.0) | 21.0 (6.0–26.0) | 22.0 (9.8–28.0) | 22.0 (10.5–27.0) | 0.916 |
| Functional teeth | 28.0 (25.0–28.0) | 27.0 (24.0–28.0) | 28.0 (25.8–28.0) | 28.0 (23.0–28.0) | 27.0 (24.0–28.0) | 0.717 | |
Jonckheere-Terpstra trend test
ODK Oral diadochokinesis, RSST Repetitive saliva swallowing test