Table 5.
Pearson's correlation coefficients between change of CAL and the independent variables in the subjects with high oxidative status (>380 CARR U) (N = 22).
| Independent variables | r* between ΔCAL and the independent variables | P value |
|---|---|---|
| Variables at baseline | ||
| Age (years) | −0.075 | 0.742 |
| Teeth present (n) | 0.152 | 0.500 |
| PPD (mm) at baseline | −0.531 | 0.011 |
| CAL (mm) at baseline | −0.228 | 0.308 |
| BOP (%) at baseline | 0.092 | 0.683 |
| PCR (%) at baseline | 0.233 | 0.298 |
| ROM (CARR U) at baseline | 0.032 | 0.887 |
| BAP (μmol/L) at baseline | −0.044 | 0.845 |
| Differences of variables | ||
| ΔTeeth present (n) | −0.352 | 0.108 |
| ΔPPD (mm) | 0.576 | 0.005 |
| ΔBOP (%) | −0.235 | 0.293 |
| ΔPCR (%) | −0.358 | 0.102 |
| ΔROM (CARR U) | −0.075 | 0.741 |
| ΔBAP (μmol/L) | −0.256 | 0.249 |
Δ represents differences (value at follow-up minus value at baseline).
*Pearson's correlation coefficients.
N: number; SD: standard deviation; PPD: probing pocket depth; CAL: clinical attachment level; BOP: bleeding on probing; PCR: plaque control record; ROM: reactive oxygen metabolites; CARR U: Carratelli units; and BAP: biologic antioxidant potential.