Table A2.

Association with inter-test difference in FVC over 6 month for pre and post-bronchodilator measurements

	Inter-test difference in FVC pre-BD			Inter-test difference in FVC post-BD
Predictors	Coefficient	95% CI	p-value	Coefficient	95% CI	p-value
Age	0	−0.004 to 0.004	0.9	−0.001	−0.004 to 0.003	0.71
Male gender	−0.072	−0.145 to 0.002	0.05	−0.066	−0.134 to 0.001	0.05
Smoking	−0.015	−0.088 to 0.058	0.68	−0.006	−0.074 to 0.061	0.85
Asthma	0.045	−0.099 to 0.189	0.54	0.061	−0.071 to 0.197	0.38
COPD	−0.074	−0.171 to 0.023	0.13	−0.027	−0.117 to 0.062	0.55
Bronchodilator	0.018	−0.056 to 0.092	0.63	−0.002	−0.071 to 0.067	0.95
ICS	−0.05	−0.144 to 0.044	0.30	−0.037	−0.124 to 0.051	0.41
LTOT	0.073	0.005 to 0.14	0.03	0.072	0.01 to 0.134	0.02
Cough	−0.13	−0.216 to −0.043	<0.001	−0.126	−0.206 to −0.045	<0.001
Crackles	0.063	−0.154 to 0.281	0.56	0.134	−0.075 to 0.345	0.21
Wheezing	0.155	−0.024 to 0.334	0.09	0.167	−0.001 to 0.335	0.05