Use of electronic medical records differs by specialty and office settings.

Objective: To assess differences in the use of electronic medical records (EMRs) among medical specialties and practice settings.

Methods: A cross-sectional retrospective study using nationally representative data from the National Ambulatory Medical Care Survey for the period 2003-2010 was performed. Bivariate and multivariate analyzes compared EMR use among physicians of 14 specialties and assessed variation by practice setting.