Table 2.
Demographic characteristics of participants according to sex.
| Variables | All participants | Male | Female |
|---|---|---|---|
| Participants, n (%) | 3779 (100) | 1647 (43.6) | 2132 (56.4) |
| Age (years) | |||
| 19–29 | 281 (7.4) | 136 (8.3) | 145 (6.8) |
| 30–39 | 542 (14.3) | 224 (13.6) | 318 (14.9) |
| 40–49 | 620 (16.4) | 276 (16.8) | 344 (16.1) |
| 50–59 | 882 (23.3) | 356 (21.6) | 526 (24.7) |
| 60–69 | 933 (24.7) | 414 (25.1) | 519 (24.3) |
| 70–86 | 521 (13.8) | 241 (14.6) | 280 (13.1) |
| BMI (kg/m2) | |||
| < 18.5 | 90 (2.4) | 29 (1.8) | 61 (2.9) |
| 18.5–23 | 1166 (30.9) | 424 (25.7) | 742 (34.8) |
| 23–25 | 962 (25.5) | 437 (26.5) | 525 (24.6) |
| ≥ 25 | 1561 (41.3) | 757 (46) | 804 (37.7) |
| Smoking | |||
| Never smoker | 2417 (64) | 394 (23.9) | 2023 (94.9) |
| Former smoker | 758 (20.1) | 710 (43.1) | 48 (2.3) |
| Current smoker | 604 (16) | 543 (33) | 61 (2.9) |
| Alcohol consumption | |||
| Never drinker | 761 (20.1) | 144 (8.7) | 617 (28.9) |
| Drinker | 3018 (79.9) | 1503 (91.3) | 1515 (71.1) |
| History of pregnancy (present) | |||
| Yes | – | – | 2110 (99) |
| No | – | – | 22 (1.0) |
| Household monthly income (KRW) | |||
| < 1,000,000 | 711 (18.8) | 265 (16.1) | 446 (20.9) |
| 1,000,000 to ~ 2,000,000 | 723 (19.1) | 325 (19.7) | 398 (18.7) |
| 2,000,000 to ~ 3,000,000 | 798 (21.1) | 364 (22.1) | 434 (20.4) |
| 3,000,000 to ~ 5,000,000 | 935 (24.7) | 420 (25.5) | 515 (24.2) |
| 5,000,000 to ~ 7,000,000 | 389 (10.3) | 167 (10.1) | 222 (10.4) |
| > 7,000,000 | 206 (5.5) | 99 (6) | 107 (5) |
| Unknown | 17 (0.4) | 7 (0.4) | 10 (0.5) |
*Values are presented as numbers (%).
BMI body mass index, KRW Korean Won.