Prevalence of doctor’s visit, absenteeism, work related allergic symptoms, and lung function loss in workers correctly and incorrectly classified as sensitised in the high and low risk group
| Observed sensitisation | ||||
|---|---|---|---|---|
| High (59%) predicted sensitisation probability n = 75 | Low (18%) predicted sensitisation probability n = 296 | |||
| Correctly classified as sensitised 63% | Incorrectly classified as sensitised 27% | Incorrectly classified as not sensitised 17% | Correctly classified as not sensitised 83% | |
| Predictors | ||||
| Asthmatic symptoms during work | 43% | 32% | 2% | 2% |
| Rhinitis during work | 79% | 61% | 14% | 6% |
| Skin symptoms during work | 51% | 39% | 12% | 5% |
| Non-predictors | ||||
| Doctor’s visit | 21% | 18% | 4% | 2% |
| Absenteeism | 11% | 0% | 2% | 0.4% |
| Allergic symptoms after work | 52% | 36% | 12% | 7% |
| Standardised residual FEV1/FVC ⩽−1.64 | 11% | 11% | 2% | 5% |