Comparison of risk behaviors for exposure to COVID-19 in the groups with and without secondary infection
| Secondary infection | Secondary infection (%) N=3 | No secondary infection (%) N=163 | |
|---|---|---|---|
| Reasons for isolation (can be duplicated) | |||
| Insufficient mask | 3 (100) | 13 (8) | 0.01 |
| Insufficient protective equipment other than mask | 0 (0) | 15 (9.2) | 1 |
| Insufficient handwashing | 0 | 6 (3.7) | 1 |
| Overlapped use of cafeteria | 3 (100) | 29 (18.4) | 0.007 |
| Same work spaces | 3 (100) | 14 (8.6) | 0.001 |
| Hospitalized in same rooms | 0 | 15 (9.2) | 1 |
| A short visit | 0 | 26 (16) | 1 |
| Identification of index cases (N=63) | |||
| Hospitalized patients | 0 | 30 (49.7) | 1 |
| Hospital workers | 1 (100) | 21 (33.1) | 0.39 |
| Simple visitors or guardian | 0 | 11 (17.2) | 1 |
| Identification of exposed persons | |||
| Patients | 1 | ||
| Doctors | 1 | ||
| Nurses | 1 | ||
| Radiologist/clinical pathologist | 1 | ||
| Nursing/security/transfer agents | 1 | ||
| Administrative | 1 (33.3) | 21 (12.9) | 0.34 |
| Cleaning persons | 1 | ||
| SARS-COV2 PCR Ct value of index cases | |||
| Under 20 | 0 | 16 (9.8) | 1 |
| Between 20-30 | 0 | 27 (16.6) | 1 |
| Over 30 | 0 | 67 (41.1) | 0.27 |
Korean J healthc assoc Infect Control Prev 2021;26:101~107 https://doi.org/10.14192/kjicp.2021.26.2.101
© Korean J healthc assoc Infect Control Prev