Zhonglin Zhao

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OBJECTIVES To describe rates of scheduled and unscheduled readmissions among midlife and older patients with diabetes and to examine associated socioeconomic and clinical factors. STUDY DESIGN Population-based data set study. METHODS Using the 2006 California State Inpatient Dataset, we identified 124,967 patients 50 years or older with diabetes who(More)
OBJECTIVES To examine patient, hospital and market factors and outcomes associated with readmission to a different hospital compared with the same hospital. DESIGN A population-based, secondary analysis using multilevel causal modeling. SETTING Acute care hospitals in California in the USA. PARTICIPANTS In total, 509 775 patients aged 50 or older who(More)
OBJECTIVES To examine prevalence of and factors associated with different types of potentially preventable hospitalizations (PPHs) among older adults with diabetes. STUDY DESIGN Population-based secondary analysis. METHODS We analyzed the California State Inpatient Databases, 2005 to 2006. PPHs for 3 acute and 5 chronic ambulatory care–sensitive(More)
PURPOSE OF THE STUDY to examine the effects of the present on admission (POA) indicator on the prevalence of and factors associated with postsurgical adverse events in older patients. DESIGN AND METHODS this is a secondary data analysis of 82,898 surgical patients aged 65 years or older in 252 acute care hospitals in California in 2004. Four adverse(More)
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