Table 2.
Multiple regression analysis of the analyzed redox biomarkers.
| Parameter | β1: HOMA-IR | β2: BMI | ||||
|---|---|---|---|---|---|---|
| Estimate | 95% CI | p value | Estimate | 95% CI | p value | |
| Salivary CAT | 0.03866 | -0.1186 to 0.1959 | 0.5793 | 0.7877 | -0.6970 to 2.272 | 0.2499 |
| Salivary Px | -4.2 | -23.23 to 14.83 | 0.6178 | 57.27 | -122.3 to 236.9 | 0.4754 |
| Salivary GR | 0.07613 | -1.587 to 1.740 | 0.9169 | 1.356 | -14.35 to 17.06 | 0.844 |
| Salivary SOD | 0.02902 | -0.02624 to 0.08427 | 0.2544 | -0.4925 | -1.014 to 0.02913 | 0.0607 |
| Salivary AA | -1.039 | -5.541 to 3.462 | 0.602 | 3.56 | -38.93 to 46.05 | 0.8486 |
| Salivary GSH | -0.2338 | -0.3665 to -0.1011 | 0.0042 | -1.44 | -2.693 to -0.1877 | 0.0298 |
| Salivary UA | 0.01866 | -0.1543 to 0.1916 | 0.806 | 1.175 | -0.4573 to 2.808 | 0.1325 |
| Salivary PC | 0.2107 | -0.1228 to 0.5443 | 0.1788 | -0.9228 | -4.071 to 2.226 | 0.5106 |
| Salivary 3-NT | -0.2589 | -1.162 to 0.6447 | 0.5198 | 4.142 | -4.387 to 12.67 | 0.2885 |
| Salivary AGE | -0.01719 | -0.2152 to 0.1808 | 0.8432 | -0.3393 | -2.209 to 1.530 | 0.6806 |
| Salivary 4-HNE | -0.9857 | -4.660 to 2.688 | 0.546 | 47.96 | 13.29 to 82.64 | 0.0137 |
Abbreviations: 3-NT: 3-nitrotyrosine; 4-HNE: 4-hydroxynonenal; AA: ascorbic acid; AGE: advanced glycation end products; BMI: body mass index; CAT: catalase; CI: confidence interval; GSH: reduced glutathione; GR: glutathione reductase; HOMA-IR: homeostatic model assessment for insulin resistance; PC: protein carbonyls; Px: peroxidase; SOD: superoxide dismutase; UA: uric acid.