Earplug use | | |
Always | 1.00 | |
Sometimes | 1.48 (1.07 to 2.05) | 0.0185 |
None | 1.53 (1.12 to 2.10) | 0.0081 |
Sex | | |
Man | 1.00 | |
Woman | 1.54 (0.74 to 3.24) | 0.2516 |
Marital status | | |
Married | 1.00 | |
Single (divorced, separated or bereaved) | 1.38 (0.85 to 2.26) | 0.1963 |
Never married | 0.69 (0.47 to 0.99) | 0.0462 |
Educational level | | |
High school or less | 0.92 (0.70 to 1.20) | 0.5262 |
College or more | 1.00 | |
Military type | | |
Army | 1.16 (0.82 to 1.64) | 0.409 |
Navy and Marines | 1.06 (0.74 to 1.52) | 0.7414 |
Air Force | 1.00 | |
Branch | | |
Combat | 1.16 (0.90 to 1.48) | 0.2489 |
Non-combat | 1.00 | |
Rank | | |
Warrant officer and commissioned officer (W1–O6) | 1.00 | |
Non-commissioned officer (E5–E9) | 1.14 (0.80 to 1.61) | 0.4675 |
Enlisted soldier (E3 and E4) | 2.58 (1.57 to 4.25) | 0.0002 |
Enlisted soldier (E1 and E2) | 1.92 (1.15 to 3.18) | 0.0123 |
Working area | | |
Forward area | 1.06 (0.80 to 1.40) | 0.6752 |
Rear area | 1.00 | |
Service classification | | |
Long-term military service | 1.00 | |
Short-term military service | 0.27 (0.17 to 0.44) | <0.0001 |
Working time (hour/week) | | |
≤48 | 1.03 (0.83 to 1.28) | 0.7955 |
≥49 | 1.00 | |