Table 5. Mental health of study participants (n = 225).
| Variables | Values | |
|---|---|---|
| Sleep duration, hr | ||
| < 6 hr | 38 (17.1) | |
| 6–8 hr | 168 (75.7) | |
| ≥ 9 hr | 16 (7.2) | |
| Degree of stress perception | ||
| Moderate to severe | 109 (48.9) | |
| None to mild | 114 (51.1) | |
| Experience of depressive mood for two or more continuous weeks | 20 (9.0) | |
| Suicidal ideation during the previous year | 12 (5.3) | |
| Suicidal planning during the previous year | 7 (3.1) | |
| Suicidal attempt during the previous year | 2 (0.9) | |
| Depression (K-BDI) | ||
| Normal (K-BDI < 10) | 118 (57.3) | |
| Mild (K-BDI 10–15) | 44 (21.4) | |
| Moderate to severe (K-BDI ≥ 16) | 44 (21.4) | |
Values are expressed as number (%).
K-BDI = Korean version of Beck Depression Inventory.