Improvement group | ||
OR* | 95% CI | |
Age (years) | ||
<20 | 1.20 | 0.50 to 2.87 |
20–21 | 1.48 | 1.01 to 2.17 |
≥22 | Ref | |
Educational level | ||
High school | Ref | |
College or above | 1.32 | 0.89 to 1.96 |
Smoking status | ||
Non-smoker | Ref | |
Ex-smoker | 1.14 | 0.66 to 1.98 |
Current smoker | 1.14 | 0.83 to 1.56 |
Subjective health status | ||
Good | 1.71 | 1.02 to 2.87 |
Normal | 1.32 | 0.79 to 2.22 |
Poor | Ref | |
Physical activity (MET-min/week) | ||
<600 | Ref | |
600–3000 | 0.95 | 0.63 to 1.44 |
>3000 | 0.96 | 0.64 to 1.44 |
Strength training | ||
None | 1.21 | 0.80 to 1.81 |
1–2 times per week | Ref | |
≥3 times per week | 1.48 | 1.03 to 2.12 |
Sleep duration (hours/day) | ||
<6 | 0.67 | 0.25 to 1.76 |
6–7 | Ref | |
≥8 | 1.03 | 0.75 to 1.41 |
Sleep disturbance | ||
No | Ref | |
Yes | 0.86 | 0.55 to 1.36 |
Military | ||
Army | Ref | |
Navy | 1.40 | 0.86 to 2.27 |
Marine Corps | 2.15 | 1.07 to 4.32 |
Air Force | 1.12 | 0.68 to 1.86 |
Branches | ||
Combat | Ref | |
Technical | 1.06 | 0.70 to 1.61 |
Administrative/special | 1.19 | 0.67 to 2.11 |
Service period (months) | ||
<6 | Ref | |
6–11 | 0.89 | 0.57 to 1.40 |
12–17 | 0.82 | 0.53 to 1.26 |
≥18 | 0.94 | 0.54 to 1.64 |
Type of workplace | ||
Large, middle and small cities | Ref | |
Country, town, township | 1.02 | 0.69 to 1.49 |
Remote areas | 0.78 | 0.43 to 1.39 |
Working hours (hours/day) | ||
<40 | 1.14 | 0.76 to 1.72 |
40–55 | Ref | |
≥56 | 1.24 | 0.88 to 1.75 |
*Regression analysis was performed using the deterioration group as the reference (ref) group. Stress and depression variables were excluded from the table because they did not show significant results during the analysis.
BMI, body mass index; MET, metabolic equivalent of task.