Table 1. Baseline characteristics of participants.
| Baseline characteristics | Men (n = 2848) | Women (n = 542) | Missing value |
|---|---|---|---|
| Mean (SD) age, years | 41.0 (9.77) | 41.6 (10.46) | 0 |
| BMI, kg/m2 | 0 | ||
| <18.5 | 128 (4.5) | 86 (15.9) | |
| 18.5–22.9 | 1304 (45.8) | 344 (63.5) | |
| 23.0–27.5 | 1182 (41.5) | 90 (16.6) | |
| ≥27.5 | 234 (8.2) | 22 (4.1) | |
| Diabetes | 51 (1.9) | 1 (0.2) | 122 |
| Smoking status | 18 | ||
| Never smoker | 894 (31.5) | 469 (87.3) | |
| Former smoker | 734 (25.9) | 22 (4.1) | |
| Current smoker | 1207 (42.6) | 46 (8.6) | |
| Alcohol drinking | 23 | ||
| Never | 712 (25.2) | 316 (58.7) | |
| Sometimes (=1) | 1315 (46.5) | 165 (30.7) | |
| Everyday | 802 (28.4) | 57 (10.6) | |
| Community periodontal index | 0 | ||
| 0 | 136 (4.8) | 45 (8.3) | |
| 1 | 313 (11.0) | 109 (20.1) | |
| 2 | 2399 (84.2) | 388 (71.6) | |
| Classification of occupation | 0 | ||
| Professional | 787 (27.6) | 54 (10.0) | |
| Managers | 455 (16.0) | 26 (4.8) | |
| Office workers | 443 (15.6) | 321 (59.2) | |
| Skilled workers | 512 (18.0) | 99 (18.3) | |
| Sales persons | 368 (12.9) | 25 (4.6) | |
| Service occupations | 88 (3.1) | 17 (3.1) | |
| Driver | 195 (6.9) | 0a |
Data are presented as n (%), unless otherwise noted.
Valid percentages for available data are shown.
a
1 woman was removed due to the small sample size.