| ACE | Angiotensin-converting enzyme |
| ATC | Anatomical Therapeutic Chemical Classification System |
| BOP | Bleeding on probing |
| CAL | Clinical attachment level |
| CI | Confidence interval |
| HbA1c | Glycated hemoglobin (hemoglobin A1c) |
| ICD-10 | International Statistical Classification of Diseases and Related Health Problems, 10th Revision |
| IQR | Interquartile range |
| PCR | Plaque control record |
| PPD | Probing pocket depth |
| R2 | Coefficient of determination |
| SD | Standard deviation |
| STROBE | Strengthening the Reporting of Observational Studies in Epidemiology |
| β | Unstandardized regression coefficient |
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