Table 2.

Inhalation Parameters and Albuterol Use Over the Full Study Period Captured by the Digihaler in Patients Who Completed the Study with ≥1 valid Inhalation

	Predictive Analysis Eligible, N=360		With Exacerbations, n=64		Without Exacerbations, n=296
	Mean (SE)	95% CI	Mean (SE)	95% CI	Mean (SE)	95% CI
PIF, L/min	73.2 (21.0)	33.5–112.8	73.4 (23.1)	25.5–113.4	73.2 (20.3)	35.4–112.3
Inhalation volume, L	1.44 (0.74)	0.34–3.28	1.44 (0.70)	0.17–3.15	1.45 (0.75)	0.39–3.31
Inhalation duration, seconds	1.61 (0.86)	0.53–3.86	1.60 (0.79)	0.48–3.72	1.62 (0.88)	0.55–3.88
Time to PIF, seconds	0.55 (0.41)	0.15–1.71	0.56 (0.43)	0.15–1.77	0.55 (0.41)	0.15–1.69
Albuterol inhalations, n/day	1.31 (2.54)	0–8	2.08 (3.16)	0–10	1.14 (2.35)	0–7

Abbreviations: CI, confidence interval; PIF, peak inspiratory flow; SE, standard error.