Table 2.
Multivariate association between occupational lifetime exposure to very loud noise and prevalent rheumatoid arthritis (odds ratio with 95% confidence interval).
| Model 1a,d | Model 2b,e | Model 3c,e | ||||
|---|---|---|---|---|---|---|
| Exposure duration | OR | 95% CI | OR | 95% CI | OR | 95% CI |
| Never | 1.00 | 1.00 | 1.00 | |||
| < 5 years | 1.45 | 0.62, 3.37 | 1.13 | 0.46, 2.76 | 0.97 | 0.38, 2.49 |
| 5–9 years | 2.07 | 0.77, 5.55 | 1.46 | 0.55, 3.87 | 1.21 | 0.51, 2.88 |
| 10–14 years | 1.88 | 0.71, 4.97 | 1.30 | 0.46, 3.63 | 1.06 | 0.36, 3.11 |
| ≥ 15 years | 5.22 | 2.26, 12.07 | 3.98 | 1.74, 9.11 | 2.84 | 1.23, 6.57 |
| Missing data | 0.82 | 0.38, 1.75 | 0.70 | 0.37, 1.33 | 0.73 | 0.40, 1.36 |
Data source: CDC/NCHS – NHANES, 2011 – 2012.
Models are based on weighted logistic regression to obtain nationally representative estimates. The unweighted sample size for these models is N = 4 192. Bold coefficients are significant at p < 0.05.
Model 1: adjusted for age and sex.
Model 2: Model 1 + additional adjustment for race/ethnicity, education, annual family income, smoking, alcohol drinking, and body mass index.
Model 3: Model 2 + additional adjustment for mineral dust, organic dust, exhaust fumes, and other fumes at the workplace.
Model 1: The “Interview weight” is applied.
Model 2 and Model 3: The “Interview and MEC Exam weight” is applied.