Table 1.
Salivary RANKL levels by study variables
| Characteristics | n (%) | RANKL (pg/ml) | ||||
|---|---|---|---|---|---|---|
| (M + SD) | 95% CI | df | Test | p‐value | ||
| Age | ||||||
| 18–30 years | 58 (36.7) | 9.20 + 15.25 | 5.11–13.28 | 2, 152 | F = 10.377** | <.001 |
| 31–45 years | 61 (38.6) | 12.79 + 17.62 | 8.27–17.30 | |||
| >46 years | 39 (24.7) | 25.66 + 20.83 | 18.81–32.51 | |||
| Smoking status | ||||||
| Nonsmokers | 136 (86.1) | 11.73 + 16.40 | −30.79–−10.30 | 24.877 | t = −4.132** | <.001 |
| Smokers | 22 (13.9) | 32.27 + 22.35 | ||||
| Plaque score | ||||||
| 1 | 20 (12.7) | 6.25 + 11.34 | 0.94–11.56 | 2, 152 | F = 4.979* | .008 |
| 2 | 77 (48.7) | 12.76 + 17.21 | 8.83–16.70 | |||
| 3 | 61 (38.6) | 19.92 + 21.16 | 14.40–25.43 | |||
| Gingival index | ||||||
| 1 | 64 (40.5) | 8.44 + 14.58 | 4.80–12.08 | 2, 152 | F = 7.591* | .001 |
| 2 | 92 (58.2) | 18.60 + 20.13 | 14.36–22.84 | |||
| 3 | 2 (1.3) | 37.50 + 3.54 | 5.73–69.27 | |||
| Periodontitis | ||||||
| None | 77 (48.7) | 3.22 + 7.10 | 1.60–4.85 | 3, 151 | F = 64.818** | <.001 |
| Mild | 39 (24.7) | 13.42 + 16.36 | 8.04–18.80 | |||
| Moderate | 24 (15.2) | 36.96 + 14.12 | 30.85–43.06 | |||
| Severe | 18 (11.4) | 36.94 + 17.80 | 27.99–45.89 | |||
Note. CI = confidence interval; df = degrees of freedom; M = mean; RANKL = receptor activator of nuclear factor ligand SD = standard deviation.
*
p < .05
**
p <.001