Abstract:
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The increasing use of smartphones and wearable activity trackers presents a unique opportunity to collect activity and sleep data at a large scale. This data is valuable in providing a near-continuous measure of activity and sleep across large cohorts over long periods of time. At 23andMe, we are able to collect phone-based activity data from participants who have consented to research through Apple’s HealthKit integration. With over 10,000 customers providing up to 1.5 years of activity data, the utility and validity of phone-based measures can be demonstrated through a comparison with 23andMe’s database of self-reported survey data. In one study, customers were asked to answer a series of questions regarding their previous night of sleep; this data was used to look at the concordance of phone-derived measures of sleep with self-report sleep habits. The results of this large-scale validation study will be presented, as well as a discussion of the opportunities in using phone-based measures of sleep. Finally, a discussion of the challenges in using mobile-based data collection will be presented with a particular focus on how phone-use behaviors impact the collection of mobile data.
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