. 2020 Aug 26;3(2):e19269. doi: 10.2196/19269

Table 1.

Study characteristics.

Classification and authors (year) [Reference]		Target condition, population/outcome	Name	Modality	Additional support	N (Intervention)	Age, % Female
Tracking and Assessment
	Bakshi et al (2017) [18]	SCD^a/Pain symptoms management tracking	Not applicable	SMS text message, Web EMA^b	PRN^c (A)^d	20	12-22, 75
	Jacob et al (2012) [19]	SCD/Pain symptoms management tracking	Wireless Pain Intervention Program	Mobile Web Page	PRN (A)	67	10-17, 54
	Odgers and Russell (2017) [20]	At-risk, low SES^e/violence exposure + behavioral health	miLife	Mobile EMA	No	151	11-15, 48
Intervention
	DiClemente et al (2014) [21]	African American teen girls/Safe sex behaviors	HORIZONS	Phone call^f	Yes	701 (342)	14-20, 100
	Leonard et al (2018) [22]	Homeless moms/Emotion regulation	Calm Mom	App^f	Yes + A	49	13-21, 100
	Nollen et al (2014) [23]	Low SES, minority Girls/Obesity-related behaviors	NR^g	App^f	No	51 (26)	9-14, 100
	Perry et al (2017) [24]	Low SES, minority teens/Asthma	NR	App^f	No (A)	34 (17)	14-16, 38
	Reid et al (2011) [25]	Rural primary care/emotional self-awareness, mood, anxiety	mobiletype	App, EMA^f	PRN	114 (68)	14-24, 72
	Rokicki and Fink (2017) [26]	At-risk teen girls/Safe sex behavior knowledge	NR	SMS text message^f	No (A)	498 (205)	14-24, 100
	Schatz et al (2015) [27]	SCD/Pain coping	NR	App, phone call	Yes	46 (23)	8-21, 59
	Seid et al (2011) [28]	Low SES, minority teens/Asthma	NR	SMS text message^f	Yes + A	26 (14)	12-18, 69
	Smith et al (2014) [29]	Low SES teen boys/Obesity-related behaviors	ATLAS	App^f	Yes	361 (181)	12-14, 0
	Thompson et al (2016) [30]	Minority teens/Obesity-related behaviors	NR	SMS text message^f	Yes + A	160 (120)	14-17, 52
	Ybarra et al (2017) [31]	Sexual minority teen boys/Safe Sex behavior, HIV prevention	Guy2Guy	SMS text message^f	Yes + A	320 (150)	14-18, 0

^aSCD: sickle cell disease.

^bEMA: ecological momentary assessment.

^cPRN: as needed.

^dA: automated support.

^eSES: socioeconomic status.

^fExplicitly detailed use of population-specific tailored messaging or design practices.

^gNR: not reported.