Effectiveness of Population Health Management Using the Propeller Health Asthma Platform: A Randomized Clinical Trial

Merchant et al. (2015)
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A total of 495 patients were enrolled in parallelarms (1:1) for 12 months of monitoring SABA use. Interventiongroup (IG) patients received access to and feedback from thePropeller Health system. Routine care (RC) patients wereoutfitted with sensors but did not receive feedback. Physicianswere able to monitor the status of their patients in the IG andreceive proactive notifications. The daily mean number of SABA uses per persondecreased by 0.41 for the IG and by 0.31 for RC between the firstweek and the remainder of the study period (P < .001 for thedifference between groups). Similarly, the proportion of SABAfree days increased 21% for the IG and 17% for RC (P < .01 forthe difference between groups). Asthma Control Test (ACT)scores were not significantly different between arms in the entirestudy population, but adults with initially uncontrolled ACTscores showed a significantly larger improvement in the proportion with controlled asthma in IG versus RC (63% controlledin the study period vs 49%, respectively; P < .05 comparing the2 improvements). Compared with RC, the study armmonitoring SABA use with the Propeller Health systemsignificantly decreased SABA use, increased SABA-free days, andimproved ACT scores (the latter among adults initially lackingasthma control).