Table 1.

Participant characteristics (N=17).

Characteristic		Values
Demographic and clinical characteristics
	Age (years), mean (SD)	29 (4)
	Female, n (%)	7 (41)
	White, n (%)	16 (94)
	High school diploma, n (%)	14 (82)
	Psychotic disorder, n (%)	7 (41)
	Currently employed (part-time or full-time), n (%)	8 (47)
	Medicaid or Medicare beneficiary, n (%)	16 (94)
Tobacco use characteristics
	Cigarettes per day, mean (SD)	15 (7)
	Baseline breath carbon monoxide, mean (SD)	26 (11)
	Fagerström score, mean (SD)	4.4 (1.8)
	Age started smoking, mean (SD)	13 (3.5)
	Previous quit attempt, n (%)	15 (88)
Smartphone use characteristics, n (%)
	Use smartphone ≥twice daily	16 (94)
	Use apps at least once per day	16 (94)
	Ever downloaded a health app	13 (77)
	Would try app if recommended by a doctor	14 (82)