| %FVC, % | %FEV1, % | PaO2, Torr | PaCO2, Torr | Total SGRQ, units |
---|
5-HIAA, ng/mL
| −0.36 (0.002) | −0.40 (<0.001) | −0.38 (<0.001) | 0.26 (0.031) | 0.33 (0.006) |
5-HT, μg/mL
| −0.09 (NS) | −0.08 (NS) | −0.17 (NS) | 0.06 (NS) | 0.10 (NS) |
HVA, ng/mL
| −0.36 (0.002) | −0.49 (<0.001) | −0.39 (<0.001) | 0.09 (NS) | 0.26 (0.029) |
MHPG, ng/mL
| −0.21 (NS) | −0.46 (<0.001) | −0.41 (<0.001) | 0.25 (0.036) | 0.40 (<0.001) |
- All correlation coefficients were expressed as r (p value).
- Post-bronchodilator data for %FVC and %FEV1 were used.
- 5-HIAA, 5-hydroxyindoleacetic acid; 5-HT, 5-hydroxytryptamine; HVA, homovanillic acid; MHPG, 3-methoxy-4-hydroxyphenylglycol; FVC, forced expiratory capacity; FEV1, forced expiratory volume in 1 second; PaO2, partial pressure of oxygen; PaCO2, partial pressure of carbon dioxide; SGRQ, St. George’s Respiratory Questionnaire.