Table 2.
Correlation between serum α-Klotho levels and different stages of periodontitis as well as other covariates
| Covariates | B | SE | 95%CI | P | ||
|---|---|---|---|---|---|---|
| Upper | Lower | |||||
| Periodontitis stages | ||||||
| Stage I/II | 0(Reference) | 0(Reference) | 0(Reference) | 0(Reference) | 0(Reference) | |
| Stage III | -37.28 | 16.00 | -68.66 | -5.906 | 0.020 | |
| Stage IV | -69.37 | 16.11 | -100.97 | -37.77 | < 0.001 | |
| Diabetes | 33.98 | 14.98 | 4.62 | 63.35 | 0.023 | |
| Hyperlipidemia | -45.93 | 12.35 | -70.15 | -21.72 | < 0.001 | |
| Cardiovascular disease | -46.10 | 22.32 | -89.87 | -2.34 | 0.039 | |
| Alcohol consumption | -46.65 | 13.59 | -73.29 | -20.00 | < 0.001 | |
| White blood cell | -8.60 | 2.83 | -14.15 | -3.06 | 0.002 | |
Dependent covariate: serum α-Klotho levels; Independent covariates: periodontitis stages, age, gender, race, BMI, smoking, drinking, vitamin D, hemoglobin, white blood cell, hypertension, diabetes, hyperlipidemia, cardiovascular disease, thyroid disease, osteoporosis, arthritis, cancer, among which only significant independent variables are shown in the table
B: unstandardized coefficient; SE: Standard error; 95% CI: 95% corresponding confidence intervals