Fig. 10
From: Digital health system for personalised COPD long-term management
a Time of usage distributions. From top to bottom: Most compliant user (lowest standard deviation), median compliant user, least compliant user (largest standard deviation). b Distribution of standard deviations for usage time by intervention-group participants in RCT. The majority of participants (74) completed their daily session with less than 2Â h standard deviation from their usual completion time