Joseph Isaac Wong|Bryan D. Steitz|S. Trent Rosenbloom
Characterizing the impact of health literacy, computer ability, patient demographics, and portal usage on patient satisfaction with a patient portal
Vanderbilt University|Vanderbilt University Medical Center|Vanderbilt University Medical Center
sought measure patient portal satisfaction patient portals characterize relationship attitude towards computers health literacy portal usage patient demographicswe invited 13 040 patients academic medical center complete survey measuring satisfaction perceived control computers health literacy using validated instruments end user computing satisfaction computer attitude measure brief health literacy screen extracted portal usage demographic information medical center data warehousea total 6026 462 patients completed survey median iqr scores satisfaction computer control health literacy 87 20 86 22 95 15 respectively normalized mean sd usage messaging lab appointment medication immunization functions 66 26 46 24 31 17 15 12 088 091 times respectively logistic regression yielded significant odds ratios 99 ci computer control 36 2552 health literacy 12 6923 immunization function usage 084 073096respondents highly satisfied high degrees computer control health literacy statistical analysis revealed higher computer control health literacy predicted higher satisfaction whereas usage immunization function predicted lower satisfaction overall analytical model low predictive capability suggesting failed capture main drivers satisfaction inadequate variation satisfaction delineate contributing factorsthis study provides insight patient satisfaction usage patient portal data guide development patient portal ultimate goal increasing functionality usability enhance patient experience