Andrea M. Austin

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IMPORTANCE Poor continuity of care may contribute to high health care spending and adverse patient outcomes in dementia. OBJECTIVE To examine the association between medical clinician continuity and health care utilization, testing, and spending in older adults with dementia. DESIGN, SETTING, AND PARTICIPANTS This was a study of an observational(More)
OBJECTIVES To determine whether receiving the predominance of ambulatory visits from a primary care provider compared to a specialty provider is associated with better outcomes in older adults with multi morbidity. DESIGN Observational study using propensity score matching. SETTING Medicare fee-for-service, 2011-12. PARTICIPANTS Beneficiaries aged 65(More)
INTRODUCTION We examined the relationship between health care expenditures and cognition, focusing on differences across cognitive systems defined by global cognition, executive function, or episodic memory. METHODS We used linear regression models to compare annual health expenditures by cognitive status in 8125 Nurses' Health Study participants who(More)
Health care spending is generally highest among people who need both complex medical care and long-term services and supports, such as adults dually eligible for Medicare and Medicaid. Understanding how different types of complex patients use services over time can inform policies that target this population. High combined Medicare and Medicaid spending are(More)
INTRODUCTION Prostate and breast cancer screening in older patients continue to be controversial. Balancing the desire for early detection with avoidance of over-diagnosis has led to competing and contradictory guidelines for both practices. Despite similarities, it is not known how these screening practices are related at the regional level. In this study,(More)
Importance Ensuring that patients undergo surveillance imaging after surgery is a key quality metric after many vascular procedures. It is unclear whether hospital participation in a national quality improvement registry such as the Vascular Quality Initiative (VQI) achieves this goal. Objective To determine if hospital participation in the VQI registry(More)
The application of social network analysis to the organization of healthcare delivery is a relatively new area of research that may not be familiar to health services statisticians and other methodologists. We present a methodological introduction to social network analysis with a case study of physicians’ adherence to clinical guidelines regarding use of(More)
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