| | Characteristics | Total participants | value | | Periodontitis | Control |
| | Age (mean, SD, y) | 54.9 (7.9) | 53.0 (8.3) | <0.001 | | Sex (n, %) | | | <0.001 | | Men | 3679 (38.4) | 39,727 (34.4) | | | Women | 5893 (61.6) | 75,605 (65.6) | | | BMI (mean, SD, kg/m2) | 24.0 (2.9) | 23.9 (2.9) | <0.001 | | Income (n, %) | | | <0.001 | | Missing, no response | 742 (7.8) | 10,173 (8.8) | | | Lowest | 3294 (34.4) | 32,701 (28.4) | | | Middle | 3556 (37.2) | 45,446 (39.4) | | | Highest | 1980 (20.7) | 27,012 (23.4) | | | Hypertension | 2703 (28.2) | 26,492 (23.0) | <0.001 | | Diabetes mellitus | 1153 (12.0) | 9254 (8.0) | <0.001 | | Hyperlipidaemia | 2171 (22.7) | 17,046 (14.8) | <0.001 | | Smoking status (n, %) | | | <0.001 | | Nonsmoker | 6428 (67.2) | 83,955 (72.8) | | | Past smoker | 1717 (17.9) | 17,270 (15.0) | | | Current smoker | 1427 (14.9) | 14,107 (12.2) | | | Alcohol consumption (n, %) | | | <0.001 | | Nondrinker | 4594 (48.0) | 58,888 (51.1) | | | Past drinker | 461 (4.8) | 4282 (3.7) | | | Current drinker | 4517 (47.2) | 52,162 (45.2) | | | Glaucoma (n, %) | 187 (2.0) | 1054 (0.9) | <0.001 |
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