Total | n | VC | P | FEV1 | P | PEF | P |
---|---|---|---|---|---|---|---|
≤ 3 | 9 | 0.50 (0.27–0.64) | 1.137 | 0.42 (0.26–0.68) | 0.450 | 0.20 (0.15–0.70) | 0.163 |
≥ 4 | 109 | 0.42 (0.24–0.83) | 0.38 (0.20–0.77) | 0.18 (0.07–0.45) | |||
≤ 4 | 25 | 0.47 (0.27–0.83) | 0.009 | 0.44 (0.25–0.77) | 0.012 | 0.20 (0.12–0.70) | 0.031 |
≥ 5 | 93 | 0.40 (0.24–0.69) | 0.37 (0.20–0.72) | 0.17 (0.07–0.43) |