title: Patient-provider communication and trust in relation to use of an online patient portal among diabetes patients: The Diabetes and Aging Study.
abstract: Patient-provider relationships influence diabetes care; less is known about their impact on online patient portal use. Diabetes patients rated provider communication and trust. In this study, we linked responses to electronic medical record data on being a registered portal user and using secure messaging (SM). We specified regression models to evaluate main effects on portal use, and subgroup analyses by race/ethnicity and age. 52% of subjects were registered users; among those, 36% used SM. Those reporting greater trust were more likely to be registered users (relative  risk (RR)=1.14) or SM users (RR=1.29). In subgroup analyses, increased trust was associated with being a registered user among white, Latino, and older patients, as well as SM use among white patients. Better communication ratings were also related to being a registered user among older patients. Since increased trust and communication were associated with portal use within subgroups, this suggests that patient-provider relationships encourage portal engagement.
authors.affiliation: Division of General Internal Medicine and Center for Vulnerable Populations, University of California, San Francisco, San Francisco, CA, USA.
authors.forename: Courtney R
authors.initials: CR
authors.lastname: Lyles
authors.forename: Urmimala
authors.initials: U
authors.lastname: Sarkar
authors.forename: James D
authors.initials: JD
authors.lastname: Ralston
authors.forename: Nancy
authors.initials: N
authors.lastname: Adler
authors.forename: Dean
authors.initials: D
authors.lastname: Schillinger
authors.forename: Howard H
authors.initials: HH
authors.lastname: Moffet
authors.forename: Elbert S
authors.initials: ES
authors.lastname: Huang
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Karter
mesh_terms: D000328:Adult; D000368:Aged; D002140:California; D003142:Communication; D003920:Diabetes Mellitus / Q000628:therapy*; D057286:Electronic Health Records / Q000706:statistics & numerical data; D005260:Female; D019538:Health Care Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D033283:Patient Access to Records; D011369:Professional-Patient Relations; D035502:Trust
keywords: age; diabetes; patient portals; patient-provider relationship; race/ethnicity