Table 2.

Multinomial regression results of users’ sociodemographic characteristics and perceived level of understanding of information in the Care Information Exchange.

			Yes, to some extent vs no							Yes, definitely vs no						Yes, to some extent vs no								Yes, definitely vs no
			Univariate odds ratio (95% CI)				P value			Univariate odds ratio (95% CI)			P value			Multivariable odds ratio (95% CI)				P value				Multivariable odds ratio (95% CI)					P value
Sex
	Female	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	Male	0.76 (0.36-1.61)				.47			0.49 (0.23-1.06)			.07			—a				—				—					—
Age (years)
	≥65	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	≤64	1.33 (0.60-2.96)				.48			1.58 (0.70-3.57)			.27			N/Ab				N/A				N/A					N/Ab
Ethnicity
	White	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	Ethnic minority	2.48 (0.72-8.53)				.15			3.18 (0.92-10.97)			.07			—				—				—					—
Native language
	Non-English	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	English	0.41 (0.09-1.78)				.23			0.45 (0.10-2.00)			.29			—				—				—					—
Education
	Secondary or below	Reference				Reference			Reference			Reference			Reference				Reference				Reference		Reference
	Undergraduate or professional	0.47 (0.16-1.82)				.18			0.66 (0.22-1.96)			.45			—				—				—					—
	Postgraduate or higher	0.33 (0.12-1.04)				.06			0.58 (0.18-1.82)			.35			—				—				—					—
Digital literacy
	Lower digital health literacy	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	Higher digital health literacy	1.47 (0.51-4.18)				.48			6.23 (1.76-22.06)			.005			1.51 (0.53-4.34)				.44				6.07 (1.70-21.57)					.005
Health status
	Neither good nor poor	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	Poor	1.48 (0.51-4.29)				.48			2.58 (0.86-7.75)			.09			N/A				N/A				N/A					N/A
	Good	0.63 (0.25-1.57)				.32			1.29 (0.86-7.75)			.60			N/A				N/A				N/A					N/A
Motivation to be involved in own care
	Not very much or a moderate amount	Reference				Reference			Reference			Reference			Reference				Reference				Reference					Reference
	A lot or very much	1.08 (0.39-3.01)				.89			3.29 (1.04-10.39)			.04			0.93 (0.30-2.88)				.90				2.99 (0.85-10.61)					.09

^aVariable excluded from the final multivariable model using a backward elimination approach.

^bN/A: not applicable (variable excluded from the multivariable analyses because of nonsignificance [P>.25] in the univariate analyses).