Table 2

Factors associated with hearing loss and whether to use earplugs (Military Health Survey 2014–2015)

VariablesHearing lossP value
Adjusted OR (95% CI)
Earplug use
 Always1.00
 Sometimes1.48 (1.07 to 2.05)0.0185
 None1.53 (1.12 to 2.10)0.0081
Sex
 Man1.00
 Woman1.54 (0.74 to 3.24)0.2516
Marital status
 Married1.00
 Single (divorced, separated or bereaved)1.38 (0.85 to 2.26)0.1963
 Never married0.69 (0.47 to 0.99)0.0462
Educational level
 High school or less0.92 (0.70 to 1.20)0.5262
 College or more1.00
Military type
 Army1.16 (0.82 to 1.64)0.409
 Navy and Marines1.06 (0.74 to 1.52)0.7414
 Air Force1.00
Branch
 Combat1.16 (0.90 to 1.48)0.2489
 Non-combat1.00
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 area1.06 (0.80 to 1.40)0.6752
 Rear area1.00
Service classification
 Long-term military service1.00
 Short-term military service0.27 (0.17 to 0.44)<0.0001
Working time (hour/week)
 ≤481.03 (0.83 to 1.28)0.7955
 ≥491.00