Changes5-151 of symptom ratings and physiological measurements stratified for different levels of exposure
| Morning test (lower exposure) (n=18) mean (SD) | Afternoon test (higher exposure) (n=9) mean (SD) | |
| VAS scales: | ||
| Change in ocular symptom rating (%) | 9 (12)5-160 | 8 (11) |
| Change in nasal symptoms rating (%) | 1 (10) | 8 (14) |
| Change in throat symptoms rating (%) | 11 (17)5-160 | 18 (15)5-165 |
| Change in rating of dyspnoea (%) | 3 (9) | 7 (14) |
| Physiological measurements: | ||
| Change in tear film stability (break up time) | −6 (24) | −13 (28)5-150 |
| Change in MCA1 (cm2) | −0.01 (0.22) | 0.06 (0.34) |
| Change in MCA2 (cm2) | −0.08 (0.30) | −0.02 (0.40) |
| Change in VOL1 (cm3) | −0.10 (0.90) | −0.04 (0.89) |
| Change in VOL2 (cm3) | −0.51 (2.21) | −0.31 (2.80) |
| Change in FEV1 (% of predicted value) | −1 (6) | −1 (10) |