Table 1.
General information of subjects (n=5,284)
| Characteristics | n (%) |
|---|---|
| Age (yr) | |
| 10-19 | 499 (9.4) |
| 20-29 | 588 (11.1) |
| 30-39 | 612 (11.6) |
| 40-49 | 792 (15.0) |
| 50-59 | 871 (16.5) |
| 60-69 | 919 (17.4) |
| ≥70 | 1,003 (19.0) |
| Sex | |
| Female | 2,893 (54.8) |
| Male | 2,391 (45.2) |
| Region | |
| Seoul | 982 (18.6) |
| Metropolitan (Gyeonggi, Incheon) | 1,618 (30.6) |
| Gangwon | 211 (3.4) |
| Chungcheong | 340 (6.4) |
| Jeonra | 292 (5.5) |
| Gyeongsang | 688 (13.0) |
| Busan | 307 (5.8) |
| Daegu | 171 (3.2) |
| Gwangju | 180 (3.4) |
| Daejeon | 187 (3.5) |
| Ulsan | 94 (1.8) |
| Sejong | 84 (1.6) |
| Jeju | 130 (2.5) |
| Sample collection period/confirmed cases (n) | |
| First period (Apr 24-Jun 19)/12,155 | 1,555 (29.4) |
| Second period (Jun 24-Aug 13)/14,770 | 1,440 (27.3) |
| Third period (Aug 14-Oct 31)/26,511 | 1,379 (26.1) |
| Fourth period (Nov 1-Dec 12)/41,736 | 910 (17.2) |