Table 1.
Comparing the matching criteria between periodontitis patients and controls. Values are shown as numbers (n), percentages (%) or median (IQR). p-values were computed using Wilcoxon test or, for binomial data (gender, smoker), chi-square test.
| Periodontitis Patients | Controls | p-Value | |
|---|---|---|---|
| All periodontitis patients (unstratified) and controls | |||
| Subjects (n) | 326 | 326 | - |
| Male (%) | 40 | 40 | p = 1 |
| Smoker (%) | 65 | 65 | p = 1 |
| Age (yrs) | 59 (50–67) | 59 (50–67) | p = 0.784 |
| BMI (kg/m2) | 28.7 (24.9–36.9) | 27.5 (24.4–35.5) | p = 0.087 |
| Periodontitis without tooth loss and controls | |||
| Subjects (n) | 213 | 213 | - |
| Male (%) | 38 | 38 | p = 1 |
| Smoker (%) | 63 | 63 | p = 1 |
| Age (yrs) | 56 (48–65) | 57 (49–65) | p = 0.738 |
| BMI (kg/m2) | 28 (24.7–36.8) | 27.5 (24.3–33.8) | p = 0.248 |
| Periodontitis with tooth loss and controls | |||
| Subjects (n) | 113 | 113 | - |
| Male (%) | 46 | 46 | p = 1 |
| Smoker (%) | 75 | 75 | p = 1 |
| Age (yrs) | 63 (55–69) | 63 (53–70) | p = 0.933 |
| BMI (kg/m2) | 29.9 (25.5–37.8) | 27.5 (25.1–35.8) | p = 0.158 |