The electronic health record (EHR) is an important part of the effort to improve health care and reduce costs in the United States. Primary care providers, among the largest group of caregivers in the nation, often experience difficulty with implementation and utilization of EHRs. Efforts to enhance the provider's effectiveness in the use of the EHR should result in improved patient outcomes as well as decreasing the overall cost of health care. Guided by the diffusion of innovation theory, this project was initiated to develop a plan for improved usage of the EHR in a primary care setting. A survey and observations were used to better understand how the providers and staff were using the EHR. Observations and a survey of 11 participants were completed. The observations utilizing a mock patient revealed issues related to the usability of screen information, information availability, and user preference for documentation. The mock patient scenario took 25-35 minutes, on average, to complete. All participants stated they had stayed late to input information on actual clinic patients or to clarify their documentation. The same 11 participants completed the Primary Care Information Project (PCIP) Post-Electronic Health Record Implementation: Survey of Providers responses. Descriptive statistics were used to analyze the results. Most participants indicated that the screen font was difficult to read (72.7%), they had difficulty using the EHR (72.8%) and were not satisfied with its use (63.6%). The project recommendations include working with the vendor to improve information access and ongoing training. Improvements to the EHR should support social change by improving access to information at the point of care, enhancing quality treatment and improving patient care outcomes.

Indiana University-Purdue University Indianapolis (IUPUI) / Periodontal disease (PD) affects 42% of US population resulting in compromised quality of life, the potential for tooth loss and influence on overall health. Despite significant understanding of PD etiology, limited longitudinal studies have investigated PD change in response to various treatments. A major barrier is the difficulty of conducting randomized controlled trials with adequate numbers of patients over a longer time. Electronic dental record (EDR) data offer the opportunity to study outcomes following various periodontal treatments. However, using EDR data for research has challenges including quality and missing data. In this dissertation, I studied a cohort of patients with PD from EDR to monitor their disease status over time. I studied retrospectively 28,908 patients who received comprehensive oral evaluation at the Indiana University School of Dentistry between January 1st-2009 and December 31st-2014. Using natural language processing and automated approaches, we 1) determined PD diagnoses from periodontal charting based on case definitions for surveillance studies, 2) extracted clinician-recorded diagnoses from clinical notes, 3) determined the number of patients with disease improvement or progression over time from EDR data. We found 100% completeness for age, sex; 72% for race; 80% for periodontal charting findings; and 47% for clinician-recorded diagnoses. The number of visits ranged from 1-14 with an average of two visits. From diagnoses obtained from findings, 37% of patients had gingivitis, 55% had moderate periodontitis, and 28% had severe periodontitis. In clinician-recorded diagnoses, 50% patients had gingivitis, 18% had mild, 14% had moderate, and 4% had severe periodontitis. The concordance between periodontal charting-generated and clinician-recorded diagnoses was 47%. The results indicate that case definitions for PD are underestimating gingivitis and overestimating the prevalence of periodontitis. Expert review of findings identified clinicians relying on visual assessment and radiographic findings in addition to the case definition criteria to document PD diagnosis. / 2021-08-10

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Indiana University-Purdue University Indianapolis (IUPUI) / Acceptance of PHR by physicians is fundamental as they play important role towards the promotion of PHR adoption by providing the access to the data to be maintained in PHR and also, using the information within the PHR for decision making. Therefore it is important to measure physicians' perspective on usefulness of PHR, and also the value and trust they have in PHR usage. Review of previous researches identifies the lack of availability of a valid survey instrument that can be used to measure physicians' perception on all different aspects of PHR use and acceptance. Using the integrated literature review methodology and Unified Theory of Acceptance and Use of Technology (UTAUT) as a guiding framework, this study was aimed to identify the factors that can be used in the development of comprehensive evaluation instrument to understand physicians' acceptance of PHR. Total 15 articles were selected for literature review and using the content analysis method, 189 undifferentiated data units were extracted from those articles. These data units were then categorized into the four core constructs of UTAUT. ―Other categorization system was also created for the data units that could not be classified into one of the UTAUT core constructs. Among four core UTAUT constructs, Performance Expectancy is found to be the most influential factor in physicians' acceptance of PHR, followed by ―Other factors, Facilitating Condition and Social Influence. Effort expectancy was found to be the least influential. The identified specific factors within each domain can be used to develop a valid survey instrument to measure physicians' perception on PHR.

Frailty is a multifaceted, geriatric syndrome that is associated with age-related declines in functional reserves resulting in increased risks of in-hospital death, readmissions and discharge to nursing homes. The risks associated with frailty highlights the need for providers to be able to quickly, and accurately, assess someone’s frailty level. Previous studies have shown that bedside clinician assessment is not a reliable or valid way to determine frailty, meaning that a more reliable, valid and concise method is needed. We developed a prediction model using discharge ICD-9/ICD-10 diagnostic codes and other demographic variables to predict Reported Edmonton Frail Scale scores. Participants were from the Baystate Frailty Study, a prospective cohort design study among elderly patients greater than 65 years old who were admitted to a single academic medical center between 2014 and 2016. Three different predictive models were completed utilizing the LASSO approach. The adjusted r-square increased across the three models indicating an increase in the predictive ability of the models. In this study of 762 hospitalized patients over the age of 65 years old, we found that a frailty prediction model that included ICD codes only had a poor prediction ability (adjusted r-square=0.10). The prediction ability improved 2-fold after adding demographic information, a comorbidity score and interaction terms (adjusted r-square=0.26). This study provided additional insights into the development of an automatic frailty assessment, something which is currently missing from clinical care.

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An empirical investigation of the security flaws and features of an in-use modern electronic health record system is performed. The investigation was carried out using dynamic analysis, manual testing and interviews with developers. The results indicate that in-use electronic health record systems suffer from serious authentication flaws, arising from the interaction of many different proprietary systems. The authentication problems are so severe that gaining access to any user’s computer on the hospital intranet would compromise a large database of patient medical records, including radiological data regarding the patients. Common web vulnerabilities were also present, such as injections and incorrectly configured HTTP security headers. These vulnerabilities were heavily mitigated by the use of libraries for constructing web interfaces. / En empirisk undersökning av säkerheten inom ett modernt elektroniskt patientjournal-system har utförts. Undersökningen genomfördes med hjälp av dynamisk analys, manuell testning och intervjuer med utvecklarna. Resultatet indikerar att system för elektroniska patientjournaler har stora brister inom autentisering, vilka uppstår p.g.a. att flera olika kommersiella system måste samarbeta. Problemen är så allvarliga att med tillgång till en enda dator på intranätet kan en stor databas med patientdata äventyras, inklusive radiologisk data gällande patienterna. Vanliga websårbarheter fanns också, så som injektioner av skript och inkorrekt konfigurerade HTTP säkerhetsheaders. Dessa sårbarheter mitigerades starkt genom användandet av bibliotek för webinterface.

<p>Primary care multi-disciplinary teams were central to recent reform plans for Canadian primary care, in response to limited resources and increasing demands. Health Information Technology was also an integral part of those plans as supporting infrastructure for the modernization of healthcare services, facilitating coordination, collaboration and access to services. As provider-centric Health Information Technology matures, attention turns to the patient. The hallmark of patient-centered applications is the electronic Personal Health Record System (PHR). These systems have grown beyond simple repositories of personal health information, extending to a range of information collection, sharing, self-management and exchange functions.</p> <p>The implementation of PHRs in primary care multi-disciplinary teams involves many stakeholders including patients, physician, allied health professionals and support staff. There is significant literature on physician and patient perspectives on all PHR functions. However, little attention has been given to the other stakeholders: allied health professionals and support staff.</p> <p>In this study, we explored the views of Allied Health Professionals (AHPs) and support staff, working in a primary care clinic adopting a patient-centered, multi-disciplinary model called the Family Health Team (FHT) model. Participants provided their insight on benefits, concerns and recommendations regarding the implementation of MyOSCAR, a PHR, at their clinic. Qualitative data was collected through semi-structured one-on-one interviews that were analyzed to extract common themes and summarize participant views. Process diagrams were produced to highlight opportunities for improvement of current work processes through the integration of MyOSCAR functions.</p> <p>As more teams are created in primary care and they attempt to implement new technologies, it is important to get a complete picture of all stakeholder views. This is the first study that focuses on the views of AHPs and support staff, contributing to the literature on PHR implementations. Findings from this study can contribute to future PHR implementations by informing planning and implementation.</p> / Master of Science (MSc)

京都大学 / 新制・論文博士 / 博士(医学) / 乙第13600号 / 論医博第2310号 / 新制||医||1072(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 村井 俊哉, 教授 佐藤 俊哉, 教授 永井 洋士 / 学位規則第4条第2項該当 / Doctor of Medical Science / Kyoto University / DFAM