Subgroup analysis of depression and support from one’s superior by covariates
| Variable | Depression | |
| Support from a superior | No support from a superior | |
| OR | OR (95% CI) | |
| Education level | ||
| High school or less | 1.00 | 4.11 (1.10 to 15.37) |
| College or more | 1.00 | 1.90 (1.14 to 3.17) |
| Military type | ||
| Army | 1.00 | 2.45 (1.26 to 4.78) |
| Navy, marine | 1.00 | 4.72 (0.88 to 25.44) |
| Air force | 1.00 | 1.26 (0.57 to 2.78) |
| Branch | ||
| Combat | 1.00 | 2.51 (1.33 to 4.76) |
| Non-combat | 1.00 | 1.54 (0.73 to 3.26) |
| Service classification | ||
| Long-term military service | 1.00 | 2.50 (1.25 to 5.00) |
| Short-term military service | 1.00 | 1.64 (0.85 to 3.17) |
| Working time (hours per week) | ||
| ≤48 | 1.00 | 2.98 (1.09 to 8.14) |
| ≥49 | 1.00 | 1.80 (1.04 to 3.11) |
| Subjective health status | ||
| Good | 1.00 | 3.36 (1.13 to 9.97) |
| Normal | 1.00 | 1.58 (0.86 to 2.90) |
| Bad | 1.00 | 3.16 (0.87 to 11.53) |
| Suicidal ideation | ||
| Yes | 1.00 | 3.32 (1.32 to 3.52) |
| No | 1.00 | 1.85 (1.15 to 2.97) |
| Stress | ||
| Yes | 1.00 | 2.22 (1.19 to 4.15) |
| No | 1.00 | 1.85 (0.87 to 3.93) |