Table 5 Multivariate logistic regression analysis ofinsomnia and noise-related variables, adjusted forsociodemographic and medical illness factors
Model 1 | Model 2 | Model 3 | ||||
|---|---|---|---|---|---|---|
OR (95% CI) | p-value | aOR a (95% CI) | p-value | aOR b (95% CI) | p-value | |
Noise-related variables | ||||||
Noise exposure (reference: Ldn < 55) | 1 | 0.295 | 1 | 0.51 | 1 | 0.519 |
55 ≤ Ldn < 65 | 0.95 (0.64–1.43) | 0.811 | 1.08 (0.71–1.63) | 0.725 | 1.14 (0.75–1.74) | 0.529 |
Ldn ≥65 | 0.67 (0.4–1.11) | 0.122 | 0.78 (0.46–1.31) | 0.346 | 0.83 (0.49–1.4) | 0.481 |
Noise sensitivity | 2.02 (1.41–2.91) | <0.001 | 2.08 (1.43–3.03) | <0.001 | 2.08 (1.43–3.04) | <0.001 |
Demographic variables | ||||||
Age | 1.01 (0.99–1.03) | 0.24 | 1 (0.99–1.02) | 0.642 | ||
Sex (reference: male) | 1.46 (0.96–2.2) | 0.074 | 1.43 (0.94–2.17) | 0.093 | ||
Education level (reference:<12 y) | 1.02 (0.65–1.62) | 0.92 | 1.08 (0.68–1.72) | 0.75 | ||
Marital status (reference: single) | 1 | 0.154 | 1 | 0.143 | ||
married | 0.72 (0.39–1.31) | 0.284 | 0.74 (0.4–1.36) | 0.329 | ||
separated/divorced/bereaved | 1.11 (0.52–2.37) | 0.785 | 1.17 (0.54–2.53) | 0.685 | ||
Income(reference:<3000 USD) | 0.48 (0.32–0.74) | 0.001 | 0.48 (0.31–0.74) | 0.001 | ||
Medical Illnesses | ||||||
Hypertension (reference: “no”) | 1.04 (0.60–1.80) | 0.900 | ||||
Hyperlipidemia (reference: “no”) | 1.35 (0.69–2.65) | 0.385 | ||||
Diabetes mellitus (reference: “no”) | 2.18 (1.12–3.98) | 0.011 | ||||
Residence period (y) | 1.01 (1–1.03) | 0.135 | 1.01 (0.99–1.03) | 0.539 | 1.01 (0.99–1.03) | 0.521 |