Improvement in model deviance with the addition of variables quantifying number of working hours at quartz concentrations exceeding various lower limits, in polychotomous regression models that also include cumulative exposure
| Model | Model deviance | Improvement (1 df) |
|---|---|---|
| Age group 50–74, exposures from 1964. | ||
| Cumulative exposure | 74.9 | |
| Add hours above concentration (mg.m−3) | ||
| 0.05 | 75.1 | 0.2 |
| 0.1 | 79.9 | 5.0 |
| 0.5 | 76.7 | 1.8 |
| 1.0 | 87.8 | 12.9 |
| 1.5 | 89.6 | 14.7 |
| 2.0 | 96.4 | 21.5 |
| 2.5 | 87.1 | 12.2 |
| 3.0 | 87.1 | 12.2 |