TABLE 3.

Logistic Regression Results: Type of Portal Feature Accessed Among Portal Adopters (n = 5146)^a

	Record Access and Management		Appointment Management		Messaging		Visit/Admission Summaries		Any Interactive Feature
Parameter	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Race
White/other		Reference		Reference		Reference		Reference		Reference
African American	0.57	0.39–0.84	0.70	0.59–0.84	0.78	0.67–0.91	0.91	0.78–1.06	0.83	0.71–0.99
Hispanic ethnicity	2.15	0.29–15.63	0.71	0.41–1.23	0.95	0.58–1.56	1.04	0.64–1.67	0.85	0.51–1.42
Non-English language preference	0.35	0.12–0.98	0.53	0.29–0.96	0.64	0.37–1.11	0.74	0.42–1.30	0.73	0.41–1.30
Age, years
<50	0.68	0.44–1.07	0.86	0.70–1.06	1.12	0.93–1.35	1.34	1.12–1.60	0.82	0.68–1.00
50–69		Reference		Reference		Reference		Reference		Reference
≥70	0.78	0.55–1.12	0.82	0.70–0.95	0.63	0.56–0.72	0.79	0.70–0.89	0.75	0.65–0.86
CCI scoreb	1.03	0.93–1.13	1.09	1.04–1.14	1.08	1.04–1.12	1.06	1.03–1.10	1.06	1.02–1.10

CCI indicates Charlson Comorbidity Index; OR, odds ratio.

^aIn addition to variables listed above, models control for patient gender, marital status, health maintenance visit use, and number of primary care office visits, as well as clinic location (urban vs suburban), size, and medical teaching status.

^bEstimates represent a 1-point increase in CCI score.