Table 1
| Occupational alveolitis n=15 | Occupational asthma n=39 | p | |
| Mean difference in PEF rest-workdays (litres/min)(SD) | 22.5 (30.8) | 26.1 (26.9) | 0.5 |
| Mean diurnal variation on workdays (% mean)(SD) | 14.9 (7.7) | 14.9 (6.0) | 0.8 |
| Mean diurnal variation on restdays (% mean)(SD) | 9.7 (6.9) | 11.6 (5.9) | 0.2 |
| % with mean workday diurnal variation >20% predicted | 20 | 23.1 | 0.8 |
| Oasys score >2.5 (%) | 53.3 | 71.8 | 0.2 |
| ABC score >15 (%) | 46.7 | 57.9 | 0.5 |
| Positive timepoint analysis (%) | 66.7 | 69.2 | 0.9 |