Expiratory volume | Exposure in filtered air | Exposure in pool air | Difference in changes≠ | ||||
---|---|---|---|---|---|---|---|
before | after | mean difference Δ-values | before | after | mean difference Δ-values | ||
FEV1 | 4.10±0.85 | 4.11±0.87 | (−0.01)° | 4.14±0.87 | 4.09±0.86 | (0.05)** | p=0.01 |
FEV% | 80.5±5.8 | 80.9±5.2 | (−0.4)° | 80.7±5.3 | 79.9±5.3 | (0.8)* | p=0.004 |
**FEV1 significantly lower after exposure in pool air, p=0.01
*FEV% lower after exposure to pool air, p=0.05.
°Indicates no statistically significant difference.
≠Statistical significance of difference between Δ-values in filtered air and in pool air.