Comparisons of recorded parameters in the ‘periodontitis’ and ‘no periodontitis’ groups
| Low threshold for periodontitis (PD ≥5 mm at ≥1 site) | High threshold for periodontitis (PD ≥6 mm at ≥1 site) | |||||
| Periodontitis n=128 (54.2%) | No periodontitis n=108 (46.8%) | p Value | Periodontitis n=57 (24.2%) | No periodontitis n=179 (75.8%) | p Value | |
| Age (years) | 52.7±9.3 | 53.3±12.2 | 0.679 | 52.5±8.3 | 53.1±11.4 | 0.682 |
| HbA1c (%) | 8.2±1.8 | 7.9±1.8 | 0.679 | 8.1±1.8 | 8.1±1.9 | 0.949 |
| HbA1c (mmol/mol) | 66.1±20.1 | 63.1±20.2 | 0.260 | 64.5±19.9 | 64.8±20.3 | 0.686 |
| Systolic blood pressure (mm Hg) | 139.3±21.2 | 138.2±20.8 | 0.689 | 140.6±21.3 | 138.2±20.9 | 0.442 |
| Diastolic blood pressure (mm Hg) | 82.2±15.9 | 80.6±10.4 | 0.355 | 83.2±16.1 | 81.0±12.8 | 0.343 |
| Body mass index (kg/m2) | 33.7±7.3 | 34.8±8.3 | 0.258 | 34.4±6.0 | 34.1±8.3 | 0.811 |
| Low-density lipoprotein cholesterol (mg/dL) | 126.7±36.6 | 128.5±43.1 | 0.838 | 125.7±36.5 | 128.4±41.0 | 0.778 |
| Current smoker, n (%) | 12 (9.4%) | 4 (3.7%) | 0.047 | 5 (8.8%) | 11 (6.1%) | 0.127 |
| Former smoker, n (%) | 49 (38.3%) | 32 (29.6%) | 25 (43.9%) | 56 (31.3%) | ||
| Never smoked, n (%) | 67 (52.3%) | 72 (66.7%) | 27 (47.4%) | 112 (62.6%) | ||
Values expressed as means ± SD for continuous variables and n (%) for categorical variables. No significant differences were identified (all p>0.05) for comparisons between groups within low and high thresholds for defining periodontitis.
PD, probing depth measurements.