Table 2 Mixed effects regression models
From: Street-level noise in an urban setting: assessment and contribution to personal exposure
Variable | Category | Estimated L EQ noise level (dBA) | 95% CI (dBA) |
|---|---|---|---|
a. Linear regression | |||
(Intercept) | Â | 64.3 | 61.7, 67.0 |
Borough | Brooklyn | 1.7 | −1.6, 5.1 |
| Â | Manhattan* | 6.0 | 3.4, 8.5 |
| Â | Queens* | 4.5 | 1.1, 7.8 |
| Â | Staten Island* | 4.9 | 0.8, 9.1 |
Time of day | Late morning | −0.5 | −1.7, 0.8 |
|  | Afternoon | −0.9 | −2.3, 0.3 |
|  | Evening | 1.0 | −0.4, 2.3 |
Traffic level | Medium* | 4.0 | 2.63, 5.4 |
| Â | High * | 7.7 | 6.3, 9.1 |
| Â | Â | Odds ratio | 95% CI |
b. Logistic regression, odds of noise level ≥80 dBA | |||
(Intercept)** | Â | 0.0028 | 0.00004, 0.085 |
Borough | Manhattan | 1.5 | 0.036, 6.5 |
| Â | Afternoon | 0.6 | 0.018, 2.3 |
| Â | Evening* | 0.5 | 0.01, 11.1 |
Traffic Level | Medium | a | a |
| Â | High** | a | a |