Table 4 Description of digital measures output from the analytics solution.
From: Development of digital measures for nighttime scratch and sleep using wrist-worn wearable devices
Digital measure | Type | Units | Description |
|---|---|---|---|
Total sleep opportunity (TSO) | Sleep | Minutes | Largest window of time where sleep is the intended behavior. |
Total sleep time (TST) | Sleep | Minutes | Total time spent asleep during the total sleep opportunity window. |
Percent time asleep (PTA) | Sleep | Percentage | Percentage of the total sleep opportunity window spent in the sleep state. |
Total scratch events | Scratch | Counts | Total scratch bouts during the total sleep opportunity window. |
Total scratch duration | Scratch | Minutes | Total time scratching during the total sleep opportunity window. |
