Table 3.
Factors associated with NIHL
| OR (95% CI) | χ2 p |
Univariate logistic regression |
Multiple logistic regression |
|||
|---|---|---|---|---|---|---|
| OR (95% CI) | p | OR (95% CI) | p | |||
| Sex∗ | 0.51 (0.30–0.8) | 5.8 (0.01) | 1.9 (1.1–3.4) | 0.01 | ||
| Age group† (y) | 63.4 (0.00) | 2.5 (1.9–3.2) | 0.00 | 1.1 (1.0–1.1) | 0.00 | |
| Duration of service† (y) | 42.3 (0.00) | 3.2 (2.2–4.7) | 0.00 | |||
| Rank | 60.9 (0.00) | 1.5 (1.3–1.7) | 0.00 | |||
| Use of hearing defender‡ | 1.14 (0.72–1.78) | 0.32 (0.56) | ||||
| Smoking§ | 0.80 (0.51–1.23) | 1.0 (0.31) | ||||
| Alcohol consumption|| | 0.93 (0.41–2.08) | 0.29 (0.86) | ||||
| Diabetes Mellitus¶ | 0.39 (0.19–0.81) | 6.63 (0.01) | ||||
| Hypertension∗∗ | 0.27 (0.15–0.48) | 20.8 (0.00) | 3.3 (1.8–6.1) | 0.00 | ||
| Hypercholesterolaemia†† | 0.86 (0.55–1.35) | 0.38 (0.53) | ||||
CI, confidence interval; NIHL, noise-induced hearing loss; OR, odds ratio.
∗
Male (reference group).
†
Age and duration of service were categorized into groups for Chi-square analysis but analyzed as continuous variables in stepwise multiple logistic regression.
‡
Uses hearing defender (reference group).
§
Nonsmoker (reference group).
||
Does not drink alcohol (reference group).
¶
No diabetes (reference group).
∗∗
No hypertension (reference group).
††
No hypercholesterolaemia (reference group).