This study examined the current prevalence of electronic health records (EHRs) in Korea and identified the factors that impede or facilitate the adoption of EHRs.Methods: We surveyed all tertiary teaching and general hospitals in Korea. The degree to which EHR systems were adopted was evaluated using the previously defined definitions of ‘comprehensive’ and ‘basic’ EHRs based on their electronic functionality. The effects of teaching status, size, and location of hospitals on EHR adoption were examined. We also investigated factors that impeded or facilitated the adoption of EHR systems.Results: The response rate was 39.0{ca7ad0b74511a57bb2016f24c729dd7716d5352e92d2275aa1f91fb22c36b0a7} (122/313), and 37.2{ca7ad0b74511a57bb2016f24c729dd7716d5352e92d2275aa1f91fb22c36b0a7} (95{ca7ad0b74511a57bb2016f24c729dd7716d5352e92d2275aa1f91fb22c36b0a7} confidence interval [CI] 31.9–42.6{ca7ad0b74511a57bb2016f24c729dd7716d5352e92d2275aa1f91fb22c36b0a7}) of Korean tertiary teaching and general hospitals had either basic or comprehensive EHR systems ….