Characteristics of participants according to diabetes diagnosis and its awareness
| Without diabetes n=12 750(87.0%) | With diabetes, unaware n=612 (4.2%) | With diabetes, aware n=1293 (8.8%) | |
| Age, years | |||
| 30–39 | 3042 (23.9) | 57 (9.3) | 24 (1.9) |
| 40–64 | 6892 (54.1) | 329 (53.8) | 593 (45.9) |
| 65- | 2816 (22.1) | 226 (36.9) | 676 (52.3) |
| Gender | |||
| Male | 5312 (41.7) | 304 (49.7) | 656 (50.7) |
| Female | 7438 (58.3) | 308 (50.3) | 637 (49.3) |
| Body mass index (kg/m2) | |||
| <18.5 | 451 (3.5) | 3 (0.5) | 22 (1.7) |
| 18.5–24.9 | 8315 (65.4) | 259 (42.3) | 703 (54.6) |
| >25 | 3952 (31.1) | 350 (57.2) | 563 (43.7) |
| Fasting blood glucose (mg/dL) | 93.2±0.1 | 140.3±2.3 | 140.2±1.6 |
| HbA1c (%) | 5.5±0.01 | 7.2±0.1 | 7.4±0.1 |
| Education level | |||
| Middle school or lower | 4676 (36.7) | 350 (57.4) | 821 (63.5) |
| High school | 4076 (32.0) | 160 (26.2) | 307 (23.8) |
| College or higher | 3980 (31.3) | 100 (16.4) | 164 (12.7) |
| Employment status | |||
| Non-manual | 4274 (33.6) | 143 (23.5) | 228 (17.7) |
| Manual | 3603 (28.4) | 198 (32.5) | 362 (28.1) |
| Others* | 4829 (38.0) | 268 (44.0) | 699 (54.2) |
| Marital status | |||
| Married | 12 103 (95.0) | 594 (97.2) | 1272 (98.5) |
| Others† | 643 (5.0) | 17 (2.8) | 20 (1.5) |
| Household income | |||
| Low | 2252 (17.8) | 170 (28.4) | 445 (34.7) |
| Low middle | 3282 (26.0) | 155 (25.9) | 330 (25.7) |
| Middle high | 3497 (27.7) | 149 (24.9) | 262 (20.4) |
| High | 3590 (28.4) | 125 (20.9) | 246 (19.2) |
| Smoking status | |||
| Past smoker/never | 10 225 (80.4) | 473 (77.9) | 1028 (79.8) |
| Current smoker | 2500 (19.6) | 134 (22.0) | 261 (20.2) |
| Alcohol use | |||
| Non-drinker | 7339 (57.7) | 369 (60.7) | 849 (65.8) |
| Drinker | 5383 (42.3) | 239 (39.3) | 441 (34.2) |
| Physical activity | |||
| No | 1561 (12.3) | 99 (16.4) | 202 (15.7) |
| Insufficient | 5319 (41.9) | 252 (41.8) | 485 (37.7) |
| Sufficient | 5821 (45.8) | 252 (41.8) | 601 (46.7) |
*Others include soldiers, students and housewives.
†Others include ‘divorced’, ‘separated’, ‘widowed’ and ‘single’.
HbA1c, haemoglobin A1c.