The Interpretation of Dyspnea in the Patient with Asthma

Table 3

Bivariate analysis, data obtained after treatment, when stable.

Independent variable	Mean (+SD)	Spearman
FEV1, % predicted	65 + 24	0.11	0.561
IC, % predicted	87 + 22	0.04	0.821
PEFR, % predicted	58 + 25	−0.01	0.979
API	2 (0, 21)	0.59	0.004
SPTZ	6 Y/26 N	0.53	0.002

For definition of abbreviations, see Table 1.