Zeynal Karaca
Biographic Data
| ID | 5538980 |
|---|---|
| NAME | Zeynal Karaca |
| GIVEN NAMES | Zeynal |
| FAMILY NAME | Karaca |
| SIGNATURE | KARACA Z |
| AFFILIATIONS | U.S. Department of Health and Human Services, Agency for Healthcare Research and Quality, Rockville, MD, USA |
| ORCID | 0000-0001-7744-4476 |
| VERIFIED | Yes |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 6 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2019 |
| H-INDEX | 0 |
Levels of outpatient prescribing for four major antibiotic classes and rates of septicemia hospitalization in adults in different US states - a statistical analysis
Our results suggest positive associations between the rates of prescribing for penicillins and the rates of hospitalization with septicemia in US adults aged 50-84y. Further studies are needed to better understand the potential effect of antibiotic replacement in the treatment of various syndromes, including the potential impact of the recent US FDA guidelines on restriction of fluoroquinolone use, as well as the potential effect of changes in th…
Using Data From the Healthcare Cost and Utilization Project for State Health Policy Research
BACKGROUND: The Healthcare Cost and Utilization Project (HCUP), the nation's most complete source of all-payer hospital care data, supports analyses at the national, regional, state and community levels. However, national HCUP data are often used in inappropriate ways in studies of state-specific issues. OBJECTIVE: To describe the opportunities and challenges of using HCUP data to conduct state health policy research and to provide empirical exam…
A Quantitative Observational Study of Physician Influence on Hospital Costs
Physicians serve as the nexus of treatment decision-making in hospitalized patients; however, little empirical evidence describes the influence of individual physicians on hospital costs. In this study, we examine the extent to which hospital costs vary across physicians and physician characteristics. We used all-payer data from 2 states representing 15 237 physicians and 2.5 million hospital visits. Regression analysis and propensity score match…
The Effects of Medicare Accountable Organizations on Inpatient Mortality Rates
Studies have linked Accountable Care Organizations (ACOs) to improved primary care, but there is little research on how ACOs affect care in other settings. We examined whether Medicare ACOs have improved hospital quality of care, specifically focusing on preventable inpatient mortality. We used 2008-2014 Healthcare Cost and Utilization Project hospital discharge data from 34 states' Medicare ACO and non-ACO hospitals in conjunction with data from…
Medicare Advantage Penetration and Hospital Costs Before and After the Affordable Care Act
BACKGROUND: Research has suggested that growth in the Medicare Advantage (MA) program indirectly benefits the entire 65+-year-old population by reducing overall expenditures and creating spillover effects of patient care practices. Medicare programs and innovations initiated by the Affordable Care Act (ACA) have encouraged practices to adopt models applying to all patient populations, which may influence the continued benefits of MA program growt…
Trends in Opioid-related Inpatient Stays Shifted After the US Transitioned to ICD-10-CM Diagnosis Coding in 2015
BACKGROUND: Trend analyses of opioid-related inpatient stays depend on the availability of comparable data over time. In October 2015, the US transitioned diagnosis coding from International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) to ICD-10-CM, increasing from ∼14,000 to 68,000 codes. This study examines how trend analyses of inpatient stays involving opioid diagnoses were affected by the transition to ICD-10-…
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Trends in Opioid-related Inpatient Stays Shifted After the US Transitioned to ICD-10-CM Diagnosis Coding in 2015
BACKGROUND: Trend analyses of opioid-related inpatient stays depend on the availability of comparable data over time. In October 2015, the US transitioned diagnosis coding from International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) to ICD-10-CM, increasing from ∼14,000 to 68,000 codes. This study examines how trend analyses of inpatient stays involving opioid diagnoses were affected by the transition to ICD-10-…
A Quantitative Observational Study of Physician Influence on Hospital Costs
Physicians serve as the nexus of treatment decision-making in hospitalized patients; however, little empirical evidence describes the influence of individual physicians on hospital costs. In this study, we examine the extent to which hospital costs vary across physicians and physician characteristics. We used all-payer data from 2 states representing 15 237 physicians and 2.5 million hospital visits. Regression analysis and propensity score match…
The Effects of Medicare Accountable Organizations on Inpatient Mortality Rates
Studies have linked Accountable Care Organizations (ACOs) to improved primary care, but there is little research on how ACOs affect care in other settings. We examined whether Medicare ACOs have improved hospital quality of care, specifically focusing on preventable inpatient mortality. We used 2008-2014 Healthcare Cost and Utilization Project hospital discharge data from 34 states' Medicare ACO and non-ACO hospitals in conjunction with data from…
Medicare Advantage Penetration and Hospital Costs Before and After the Affordable Care Act
BACKGROUND: Research has suggested that growth in the Medicare Advantage (MA) program indirectly benefits the entire 65+-year-old population by reducing overall expenditures and creating spillover effects of patient care practices. Medicare programs and innovations initiated by the Affordable Care Act (ACA) have encouraged practices to adopt models applying to all patient populations, which may influence the continued benefits of MA program growt…
Levels of outpatient prescribing for four major antibiotic classes and rates of septicemia hospitalization in adults in different US states - a statistical analysis
Our results suggest positive associations between the rates of prescribing for penicillins and the rates of hospitalization with septicemia in US adults aged 50-84y. Further studies are needed to better understand the potential effect of antibiotic replacement in the treatment of various syndromes, including the potential impact of the recent US FDA guidelines on restriction of fluoroquinolone use, as well as the potential effect of changes in th…
Using Data From the Healthcare Cost and Utilization Project for State Health Policy Research
BACKGROUND: The Healthcare Cost and Utilization Project (HCUP), the nation's most complete source of all-payer hospital care data, supports analyses at the national, regional, state and community levels. However, national HCUP data are often used in inappropriate ways in studies of state-specific issues. OBJECTIVE: To describe the opportunities and challenges of using HCUP data to conduct state health policy research and to provide empirical exam…
Medicine (6 works) · Health care (5 works) · Emergency Medicine (4 works) · Healthcare Cost and Utilization Project (4 works) · Healthcare Policy and Management (4 works) · Medical emergency (4 works) · Emergency Medicine (3 works) · Internal Medicine (3 works) · Primary Care and Health Outcomes (3 works) · Actuarial science (2 works)