Table 3.

Correlates of Smartphone Ownership Among All Patients

	Unadjusted Models			Multivariate Model* (n = 866)
	Patients (n)	OR (95% CI)	P Value	Adjusted OR (95% CI)	P Value
Age (years)	809
18–24		Reference		Reference
25–34		1.13 (0.65–1.95)	.68	1.13 (0.65–1.98)	.66
35–44		0.72 (0.41–1.25)	.24	0.77 (0.44–1.35)	.36
45–54		0.36 (0.21–0.60)	<.001	0.39 (0.22–0.68)	.001
55–64		0.18 (0.10–0.30)	<.001	0.21 (0.12–0.37)	<.001
≥65		0.06 (0.03–0.13)	<.001	0.08 (0.04–0.17)	<.001
Sex
Male		Reference		Reference
Female	811	0.87 (0.63–1.21)	.41	0.75 (0.51–1.09)	.13
Race/ethnicity	818
White		Reference		Reference
Native American		0.89 (0.33–2.45)	.83	0.78 (0.26–2.39)	.66
Asian/Pacific Islander		1.25 (0.56–2.79)	.58	0.74 (0.3–1.83)	.51
African American		2.61 (0.85–8.07)	.10	1.67 (0.51–5.47)	.39
Latino		2.04 (1.00–4.16)	.05	1.18 (0.55–2.53)	.67
Other/multiracial		1.05 (0.60–1.84)	.86	0.74 (0.41–1.37)	.34
Any health literacy limitation	797	0.87 (0.65–1.17)	.37	0.86 (0.62–1.2)	.38
Any chronic medical condition	857	0.5 (0.37–0.67)	<.001	0.74 (0.53–1.04)	.08
Depression	762	0.82 (0.61–1.10)	.18	0.81 (0.58–1.14)	.23

All models were adjusted for clustering within clinics.

^*The multivariate model reports results from a single model that includes all of the independent variables in the table. Multiple imputation was used for missing variables in the multivariate model.

CI, confidence interval; OR, odds ratio.