Table 2.
Multivariate analysis of the correlations between miles run, FENO measured by a desktop analyzer (NIOX average) and two portable analyzers (MINO A average, MINO B average), FEV1, and PEF. Significance probabilities are indicated in parenthesis.
| Run (miles) | NIOX average | MINO A average | MINO B average | FEV1 | PEF | |
|---|---|---|---|---|---|---|
| Run (miles) | 1 | −0.57 (p = 0.084) |
−0.53 (p = 0.046) |
−0.53 (p = 0.021) |
0.24 (p = 0.40) |
0.11 (p = 0.17) |
| NIOX average | −0.57 (p = 0.084) |
1 | 0.73 (p < 0.0001) |
0.74 (p < 0.0001) |
−0.37 (p = 0.19) |
0.23 (p = 0.073) |
| MINO A average | −0.53 (p = 0.046) |
0.73 (p < 0.0001) |
1 | 0.88 (p < 0.0001) |
−0.14 (p = 27) |
0.22 (p = 0.45) |
| MINO B average | −0.53 (p = 0.021) |
0.74 (p < 0.0001) |
0.88 (p < 0.0001) |
1 | −0.25 (p = 0.27) |
0.34 (p = 0.17) |
| FEV1 | 0.24 (p = 0.40) |
−0.37 (p = 0.19) |
−0.14 (p = 0.27) |
−0.25 (p = 0.27) |
1 | −0.22 (p = 0.66) |
| PEF | 0.11 (p = 0.17) |
0.23 (p = 0.073) |
0.22 (p = 0.45) |
0.34 (p = 0.17) |
−0.22 (p = 0.66) |
1 |
Abbreviations: average FENO measured by desktop analyzer (NIOX average); average FENO measured by portable analyzer A (MINO A average); average FENO measured by portable analyzer B (MINO B average); forced expiratory volume in 1 s (FEV1); peak expiratory flow (PEF).