Thomas T. H. Wan

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Healthcare informatics research is a scientific endeavor that applies information science, computer technology, and statistical modeling techniques to develop decision support systems for improving both health service organizations' performance and patient care outcomes. The analytical strategies include (1) the formulation of a data warehouse for(More)
Previous studies show that the healthcare industry lags behind many other economic sectors in the adoption of information technology. The purpose of this study is to understand differences in structural characteristics between providers that do and that do not adopt Health Information Technology (HIT) applications. Publicly available secondary data were(More)
This analysis investigates what patients and practitioners can do to improve their interactive communications to achieve optimal patient-centric (PC) care. One goal of this clinical practice approach is to improve patient satisfaction, compliance, and outcomes. The mutual responsibilities required of both the patients and practitioners to attain PC care are(More)
Nursing home reimbursement systems which do not adjust payment levels to patient care needs lead to access problems for heavy-care patients. Unnecessarily long and costly hospital stays may result. A patient-based nursing home incentive reimbursement system has been designed and is being evaluated in a controlled field experiment in 36 California skilled(More)
PURPOSE This study examines the integration effects on efficiency and financial viability of the top 100 integrated healthcare networks (IHNs) in the United States. THEORY A contingency-strategic theory is used to identify the relationship of IHNs' performance to their structural and operational characteristics and integration strategies. METHODS The(More)
This study reports the results of a nationwide survey of Rural Health Clinics (RHCs). The purpose was to identify factors that contribute to efficiency and effectiveness in RHCs. Factors related to cost efficiency were analyzed using multiple regression; factors related to the likelihood of providing preventive diabetic care, an effectiveness indicator,(More)
The threat of pandemic disaster has motivated many collaborative exercises for the purpose of preparation and evaluation. The nature of these exercises depends upon the status of pre-existing expectations for system behavior and the aims of the exercise stakeholders. The contents of this article argue that these exercises may be developed using the same(More)
BACKGROUND Thailand's Universal Coverage Scheme (UCS) has improved healthcare access and utilization since its initial introduction in 2002. However, a substantial proportion of beneficiaries has utilized care outside the UCS boundaries. Because low utilization may be an indication of a policy gap between people's health needs and the services available to(More)
This study aims (1) to examine the trends and patterns of colorectal cancer screening (CCS) of Medicare beneficiaries in rural areas by state and year (before and after Affordable Care Act [ACA] enactment) and (2) to investigate the contextual, organizational, and aggregated patient characteristics influencing variations in care received by patients of(More)