. 2024 Jul 30;10(15):e35472. doi: 10.1016/j.heliyon.2024.e35472

Table 2.

Smartphone data collection methods and sensor data features of studies included in the scoping review.

Study	Year	Phone Source	Operating System (Model)	Application or Platform Name	Behaviour Inference	Sensor Data Features Extracted
Study	Year	Phone Source	Operating System (Model)	Application or Platform Name	Behaviour Inference	GPS/Wifi	Accel.	Step Count	Gyro.	Call logs	SMS logs	BT	Mic.	Light	Lock/Unlock	Screen	Other	N Unique Features
Depression
Ben-Zeev et al.	2015	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Social								X					8
					Activity	X	X
					Sleep		X						X	X	X	X
Chikersal et al.	2021	Personal	IOS and Android (NR)	AWARE	Location	X												5
					Social					X		X
					Phone Use										X	X
Demasi et al.	2016	Personal	Android (NR)	NR	Activity		X											1
					Sleep		X											1
Dissing et al.	2021	Study phone provided	NR	NR	Social					X	X						X *	1
Elhai et al.	2018	Personal	IOS (≥4S)	Moment	Phone Use	X									X	X		3
Farhan, Lu et al.	2016	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Location	X												5
					Activity	X
					Social								X
					Sleep									X
					Phone Use										X
Farhan, Yue et al.	2016	Personal	IOS (≥8) and Android (≥4.0)	LifeRhythm	Location	X												2
					Activity		X											2
Gerych et al.	2019	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Location	X												1
Jacobson & Chung	2020	Personal	Android	MoodTriggers	Location	X												2
					Social					X								2
Kim et al.	2021	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Sleep										X			1
Li et al.	2017	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Location	X												2
					Social								X					2
Lu et al.	2018	Personal	Android and IOS (NR)	LifeRhythm	Location	X												1
Saeb et al.	2016	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Location	X												1
					Circadian Movement	X												1
Wang, Chen et al.	2014	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Location	X						X						6
					Activity		X
					Social								X
					Sleep		X						X	X	X
Wang, Wang et al.	2018	Personal	IOS and Android (NR)	StudentLife	Location	X												5
					Activity		X
					Social								X
					Sleep		X						X	X	X
					Phone Use										X
Ware, Yue et al. (phase 1 and 2)	2019	Personal	IOS and Android (NR)	LifeRhythm	Location	X												1
					Circadian Movement	X												1
Xu, Chikersal, Doryab et al. (phase 1 and 2)	2019	Personal	NR	AWARE	Location	X												4
					Social					X		X
					Phone Use										X
					Circadian Movement	X
Xu, Chikersal, Dutcher et al. (phase 1 and 2)	2021	Personal	IOS (NR)	AWARE	Location	X												4
					Social					X		X
					Phone Use										X
					Circadian Movement	X
Yang, Mo et al.	2017	Personal or study phone provided	Android (study phone ≥4.0)	StudentLife	Location	X												5
					Activity		X
					Social							X
					Phone Use										X
					Other Contextual Features								X		X
Yue et al.	2017	Personal or study phone provided	IOS and Android (NR)	LifeRhythm	Location	X												1
					Activity	X												1
Anxiety
Boukhechba, Chow et al.	2018	Personal	IOS and Android (NR)	Sensus	Location	X												1
Boukhechba, Huang et al.	2017	Personal	Android (NR)	NR	Location	X												2
					Social					X	X							2
Fukazawa et al.	2019	Personal	Android (NR)	NR	Activity		X											6
					Social					X	X						X**
					Phone Use									X
					Orientation				X
Gong et al.	2019	Personal	Android (NR)	Sensus	Location	X												4
					Activity		X
					Social					X	X
Huang et al.	2016	Personal	NR	NR	Location	X												1
Yang, Tang et al.	2021	Study phone provided	NR	WeChat applet	Activity		X											1
Depression and Anxiety
Boukhechba, Daros et al.	2018	Personal	Android (≥4.3)	Sensus	Location	X												4
					Activity		X
					Social					X	X
Cao et al.	2020	Personal	Android (NR)	SOLVD	Location	X	X											7
					Activity			X
					Social					X	X
					Sleep									X
					Phone Use											X
Chow et al.	2017	Personal	Android (≥4.3)	Sensus	Location	X												1
Jacobson et al.	2020	Personal	Android (≥4.3)	Sensus	Activity		X											3
					Social					X	X							3
Knight & Bidargaddi	2018	Personal	NR	Pre-existing apps on users' phone	Activity		X											1
MacLeod et al.	2021	Personal	IOS and Android (NR)	PROSIT	Location	X												5
					Social					X
					Sleep									X
					Phone Use										X	X
Melcher et al.	2021	Personal	IOS and Android (NR)	mindLAMP	Location	X												4
					Social					X
					Sleep		X
					Phone Use											X
Rozgonjuk et al.	2018	Personal	IOS (≥10)	Moment	Phone Use										X	X		2
Shoval et al.	2020	Personal	Android (NR)	QualityTime (Mobi-days, Inc)	Sleep												X***	Unclear

Note. Some phone specifications and sensors for studies using the same dataset or app (e.g., StudentLife) are assumed to be the same as those reported in the primary paper, when they are not explicitly reported in text. Application or Platform Name – PROSIT = Predicting Risk and Outcomes of Social Interactions. Sensor Data Features Extracted – GPS = Global Positioning System (GPS/WiFi includes GPS/phone location services, and/or WiFi receivers and/or cell towers); Accel = Accelerometer (includes phone core motion systems); BT = Bluetooth; Total = Total number of features explored in each study. *Social media use & network size. **Social networking via execution status of smartphone applications. ***App-based monitoring of phone activity including type of application, time spent using it, and time of night. Study authors created an index of whether phone was checked at night or not checked at night. NR = Not reported.