Distal Airway Impairment in Obese Normoreactive Women

Table 6

Impact of BMI on the relationship between FVC DRS and FEV1 DRS—slope comparisons.

	BMI < 25	25 ≤ BMI < 30	BMI ≥ 30	𝑃
Entire population	0.90 (0.04)	0.91 (0.05)	0.74 (0.04)**	0.0079
AHR+ population	0.86 (0.06)	1.04 (0.06)	0.94 (0.06)	0.4090
AHR− population	0.62 (0.09)	0.78 (0.14)	0.29 (0.06)*	0.0283

Data shown are slopes (and their standard deviations) calculated by the linear regression log(FEV1 DRS) = log(FVC DRS), adjusted for age and baseline respiratory values, for the three levels of BMI and for the three populations. The 𝑃 value is calculated by analyses of covariance.
* 𝑃<0.05 versus BMI < 25; **𝑃<0.01 versus BMI < 25.