Table 2.
Salivary and periodontal parameters according to OSA severity.
| No OSA N = 17 |
Mild to moderate OSA N = 109 |
Severe OSA N = 79 | p | |
|---|---|---|---|---|
| Salivary parameters | ||||
| Salivary flow (ml/min) | 0.244 (0.15–0.39) | 0.23 (0.15–0.36) | 0.22 (0.14–0.41) | 0.918 |
| Salivary pH | 6.58 (6.47–6.74) | 6.59 (6.36–6.84) | 6.64 (6.33–7) | 0.286 |
| Salivary calcium (mmol/L) | 0.61 (0.47–0.8) | 0.51 (0.38–0.69) | 0.52 (0.39–0.69) | 0.590 |
| Salivary phosphate (mmol/L) | 6.39 (4.31–8.24) | 6.19 (5.04–7.49) | 6.43 (4.64–8.85) | 0.801 |
| Salivary magnesium (mmol/L) | 0.2 (0.15–0.31) | 0.19 (0.14–0.27) | 0.19 (0.14–0.27) | 0.874 |
| Ca/Mg | 2.67 (2.15–3.03) | 2.59 (1.95–3.8) | 2.62 (1.88–4.12) | 0.991 |
| Ca/PO4 | 0.09 (0.08–0.11) | 0.09 (0.06–0.12) | 0.08 (0.06–0.12) | 0.842 |
| Mg/PO4 | 0.03 (0.03–0.04) | 0.03 (0.02–0.04) | 0.03 (0.02–0.04) | 0.678 |
| Salivary cortisol (ng/mL) | 6.25 (5.156–8.13) 1 | 4.64 (3.032–5.75) 2 | 4.57 (3.11–6.06) 2 | 0.011 |
| N = 11 | N = 87 | N = 59 | ||
|---|---|---|---|---|
| Periodontal status | ||||
| Number of teeth | 28 (25.5–28) 1 | 23 (17–27) 2 | 22 (15.5–25.5) 2 | 0.019 |
| Plaque (%) | 38 (29.5–51) 1 | 59 (46–78) 1 | 73 (59.3–94) 1 | 0.001 |
| BoP (%) | 20 (6–45) | 21 (10–32) | 20 (12.3–36) | 0.957 |
| CAL (mm) | 2.3 (2–2.7) | 2.6 (2.2–3) | 2.7 (2.1–3.4) | 0.175 |
| PISA score (mm2) | 173.7 (67.1–546.4) | 218.3 (89.5–368.8) | 179.7 (86.65–344.94) | 0.953 |
| Stages of periodontitis | ||||
| No periodontitis | 3 (27.3) | 7 (9.1) | 7 (13) | 0.095 |
| Periodontitis stages 1 and 2 | 6 (54.5) | 33 (42.9) | 20 (37) | |
| Periodontitis stages 3 and 4 | 2 (18.2) | 37 (48.1) | 27 (50) | |
Data are presented as the medians with interquartile ranges. The Kruskal‒Wallis test was calculated for group comparisons.
1Post hoc difference to both other groups following the Mann‒Whitney U test p < 0.05.
2Post hoc difference only to the no OSA group following the Mann‒Whitney U test p < 0.05.