Table 1

General characteristics of study observations (Military Health Survey 2014–2015)

VariableHearing lossP value
TotalYesNo
n (%)n (%)n (%)
Earplug use0.0353
 Always2528 (18.8)52 (2.1)2476 (97.9)
 Sometimes4852 (36.0)140 (2.9)4712 (97.1)
 None6090 (45.2)186 (3.1)5904 (97.0)
Sex0.3596
 Man13 080 (97.1)370 (2.8)12 710 (97.2)
 Woman390 (2.9)8 (2.1)382 (98.0)
Marital status<0.0001
 Married1630 (12.1)88 (5.4)1542 (94.6)
 Single (divorced, separated or bereaved)306 (2.3)22 (7.2)284 (92.8)
 Never married11 534 (85.6)268 (2.3)11 266 (97.7)
Educational level0.5636
 High school or less2484 (18.4)74 (3.0)2410 (97.0)
 College or more10 986 (81.6)304 (2.8010 682 (97.2)
Military type0.8874
 Army8330 (61.8)230 (2.8)8100 (97.2)
 Navy and Marines2236 (16.6)66 (3.0)2170 (97.1)
 Air Force2904 (21.6)82 (2.8)2822 (97.2)
Branch0.3112
 Combat8740 (64.9)236 (2.7)8504 (97.3)
 Non-combat4730 (35.1)142 (3.0)4588 (97.0)
Rank0.0023
 Warrant officer and commissioned officer (W1–O6)1798 (13.4)58 (3.2)1740 (96.8)
 Non-commissioned officer (E5–E9)3378 (25.1)118 (3.5)3260 (96.5)
 Enlisted soldier (E3 and E4)3958 (29.4)110 (2.8)3848 (97.2)
 Enlisted soldier (E1 and E2)4336 (32.2)92 (2.1)4244 (97.9)
Working area0.3557
 Forward area8922 (66.2)242 (2.7)8680 (97.3)
 Rear area4548 (33.8)136 (3.0)4412 (97.0)
Service classification<0.0001
 Long-term military service2922 (21.7)150 (5.1)2772 (94.9)
 Short-term military service10 548 (78.3)228 (2.2)10 320 (97.8)
Working time (hour/week)0.4297
 ≤486684 (49.6)180 (2.7)6504 (97.3)
 ≥496786 (50.4)198 (2.9)6588 (97.1)
Total13 470 (100.0)378 (2.8)13 092 (97.2)