Table 2.

Categories of activity patterns measured from sensor data.

Activity Category	Activities Measured
In-home activity	- Mobility [44], walking speed [37,44] - Time spent in different parts of home [26,27,45,46] - Activity levels in different parts of home [26,27,45]
Out-of-home activity	- Time spent out of home [26,37,44,46,47] - Frequency of going out [26,37] - Time spent in garden [27]
Sleep patterns	- Time spent in bedroom [26] - Nocturnal movement [26]
Phone usage	- Number of incoming and outgoing calls [27,44,48] - Number of incoming and outgoing text messages [27] - Duration of incoming and outgoing calls [27,48] - Persons from whom calls and texts were received/made/sent [27]