Table 2 Odds ratios (95% confidence interval) of hearing loss at 3,000 Hz frequency by occupational noise exposure levels

From: The association between occupational noise exposure and hearing loss among petrochemical enterprise workers in Hainan, South China

Variable

Model 1

Model 2

Model 3

OR (95% CI)

OR (95% CI)

OR (95% CI)

Noise exposure level [dB(A)]

   

80 < 

Ref

Ref

Ref

80–89

2.60(1.20–5.61)

3.40(1.51–7.62)

3.09(1.33–7.18)

 ≥ 90

2.73(1.23–6.04)

2.14(0.93–4.92)

2.04(0.86–4.81)

  1. Model 1: Unadjusted.
  2. Model 2: Adjusted for age, gender.
  3. Model 3: Adjusted for age, gender, smoking, SBP, hypertension, occupational noise exposure time, hypertension history, physical activity.
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