OBJECTIVES To identify characteristics of office-based provider used as a usual source of care (USC) associated with secure electronic messaging (SM) use. DATA SOURCE 2015 Medical Expenditure Panel Survey Household Component and the supplemental Medical Organizations Survey. STUDY DESIGN Cross-sectional analysis. EXTRACTION METHODS Patients are linked to characteristics of their usual source of care provider. MAIN FINDINGS We found that 89 percent of patients whose USC had electronic health records were able to exchange secure messages with their provider. Patients whose USC reported being patient-centered medical homes (PCMHs) or that used other health information technology (HIT) were also more likely to have been able to exchange SM with their provider. Patients of independent group or solo practices were less likely to have been able to exchange SM relative to patients whose USC practice was hospital owned. CONCLUSIONS Patients were more likely to have visited a USC that exchanged SMs if that practice also used other electronic health records functionalities. Study findings suggest that while patients' USC practices were likely to exchange secure messages, there is a disparity in SM use between physician-owned practices, and hospital-owned practices.

中文翻译：

---

与安全电子消息传递相关的基于办公室的提供商的特征：实现有意义的使用。

目的确定基于办公室的提供者的特征，该提供者的特征是与安全电子消息（SM）使用相关的常用护理来源（USC）。数据源2015年医疗支出小组调查家庭组成部分和补充医疗组织调查。研究设计横截面分析。提取方法患者与他们通常的护理提供者的特征有关。主要发现我们发现，在USC拥有电子健康记录的患者中，有89％的患者能够与其提供者交换安全消息。USC报告为以患者为中心的医疗之家（PCMH）或使用其他健康信息技术（HIT）的患者也更有可能与他们的提供者交换SM。相对于USC惯例为医院拥有的患者，独立小组或单独惯例的患者不太可能交换SM。结论如果这种做法还使用了其他电子病历功能，则患者更有可能去过USC并交换过SM。研究结果表明，尽管患者的USC做法很可能交换安全消息，但医生拥有的做法和医院拥有的做法在SM使用方面存在差异。