Ekonomi Bölümü Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.11779/1936

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Access Right: Closed AccessAuthor: search.filters.author.Wang, L

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    Examining the Incidence and Prevalence of Alcohol Dependence Among Us Veteran Patients
    (2016) Bashyal, R; Du, H; Wang, L; Başer, Onur
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    Prs12 - Mortality and Rehospitalization Rates Among Hospitalized Pneumonia Patients in the Us Medicare Population
    (Elsevier Science Inc, 2015-05-01) Li, L.; Shrestha, S.; Başer, Onur; Yuce, H; Wang, L
    Objectives: To examine the mortality and rehospitalization rates among hospitalized U.S. Medicare patients diagnosed with pneumonia. Methods: Using U.S.Medicare data, 30-day and 1-year mortality rates as well as rehospitalization rateswere calculated for patients with a primary diagnosis of pneumonia (InternationalClassification of Diseases, 9th Revision, Clinical Modification [ICD-9-CM] codes480.0-483.99 or 485-487) or a secondary discharge diagnosis of pneumonia witha primary diagnosis of respiratory failure (ICD-9-CM code 518.81) or sepsis (038.xx). Patients with continuous enrollment in a fee-for-service Medicare healthplan throughout the calendar year, and at least 2 years prior, were included inthe study. Age- and gender-adjusted readmission rates were calculated by directstandardization of the U.S. population age ?65 years in 2010 using gender-specificage groups. Results: The 30-day and 1-year mortality rates increased by 5.9% (17 to18 per 1,000 person-years) and 13.2% (38 to 43 per 1,000 person-years), respectively,from 2008 to 2012. The overall adjusted readmission rates were 3.82% in 2008, 3.93%in 2009, 3.98% in 2010 and 2011, and 3.17% in 2012. Men had higher readmission ratesthan women for all study years except 2011. Patients age 65-69 years had the highestreadmission rates in 2008 (4.47%), 2009 (4.59%) and 2011 (4.77%). In 2010, patients age70-74 years (4.41%), and in 2012, patients who were age 75-79 years (3.73%) had thehighest readmission rates. Black patients had the highest readmission rates in 2008(5.08%), North American Natives in 2009 (4.86%), other race in 2010 (5.87%), Hispanicsin 2011 (5.70%) and North American Natives in 2012 (7.11%). Conclusions: AmongU.S. Medicare beneficiaries diagnosed with pneumonia, mortality rates were higherfrom 2009 to 2012 than in 2008. Overall, hospital readmission rates were lower in2012 than 2008, after adjusting for age and gender. Readmission rates varied acrossrace and age groups.
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    Pcv50 - a Retrospective Analysis of Health Care Resource Utilization and the Economic Burden Among Us Long-Term Care Facility Patients Diagnosed With Stroke
    (Elsevier Science Inc, 2015-05-01) Huang, A; Shrestha, S; Başer, Onur; Yuce, H; Wang, L
    Objectives: To assess the economic burden and health care resource utilization among patients in long-term care facilities who were diagnosed withstroke. Methods: Patients diagnosed with stroke (International Classification ofDiseases, 9th Revision, Clinical Modification diagnosis codes 433, 434 and 436) wereidentified using the Long Term Care Minimum Data Set (MDS) linked to 5% Medicaredata from 01JAN2009 through 31DEC2010. The initial diagnosis date was designatedas the index date. Patients without a stroke diagnosis (control cohort) were matchedto stroke patients, and 1:1 propensity score matching (PSM) was used to control forage, region, gender and baseline Charlson Comorbidity Index score. The index datefor the control cohort was randomly chosen to reduce selection bias. Patients inboth cohorts were required to be age ?65 years, have at least two consecutive quarterly assessments documented in MDS data 6 months prior to the index date andhave continuous medical and pharmacy benefits 1 year before and after the indexdate. Results: Once PSM was applied, 1,014 patients were included in each cohort,and baseline characteristics were balanced. A higher percentage of stroke patientshad inpatient admissions (40.34% vs. 23.37%, p<0.0001), outpatient visits (92.31%vs. 89.45%, p=0.0253), skilled nursing facility (SNF; 37.67% vs. 28.21%, p<0.0001) anddurable medical equipment (DME) claims (30.47% vs. 22.09%, p<0.0001) than thosein the control cohort. Stroke patients also incurred considerably higher inpatient($7,068 vs. $3,418, p<0.0001), outpatient ($3,545 vs. $2,539, p<0.0001), SNF ($8,036 vs.$3,695, p<0.0001), DME ($394 vs. $235, p=0.0023) and carrier claim costs ($3,606 vs.$2,489, p<0.0001) than those without a stroke diagnosis. Conclusions: Patientsdiagnosed with stroke had considerably higher health care resource utilization andcosts than those in the control cohort.
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    Proton Pump Inhibitor Utilization Among Patients With Hepatitis C Virus (hcv)
    (2016) Pesa, JA; Wang, L; Yuce, H; Başer, Onur
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    Pcv113 - Assessing the Health Care Resource Utilization and Economic Burden Among Us Cardiovascular Disease Patients in the Veterans Health Administration Population
    (Elsevier Science Inc, 2015-05-01) Mao, X; Shrestha, S; Başer, Onur; Wang, L
    Objectives: To assess health care resource utilization and costs among U.S.patients diagnosed with cardiovascular disease (CVD) using the Veterans HealthAdministration (VHA) dataset. Methods: Patients diagnosed with CVD or whounderwent CVD-related procedures were identified (International Classificationof Disease, 9th Revision, Clinical Modification [ICD-9-CM] diagnosis codes 410, 412,411.1, 411.81, 411.89, 434, 436, 437.0, 437.1, 438, 997.02, 435 and 428, ICD-9 procedurecodes 00.66, 36.09 and current procedural terminology [CPT]-4 codes 33503-33545)using the VHA dataset from 01OCT2008 through 30SEPT2012. The initial diagnosisdate was designated as the index date. Patients without a CVD diagnosis, who wereof the same age, race and gender as study CVD patients, were identified for comparison. An index date was selected at random to minimize bias. Patients in bothgroups were required to be age ?18 years with continuous medical and pharmacybenefits 1 year pre- and post-index date. One-to-one propensity score matching(PSM) was used to compare health care resource utilization and costs between theCVD and comparison groups during the follow-up period, adjusting for baselinedemographic and clinical characteristics. Results: After risk-adjusted analysisusing PSM, 536,125 patients in each group were matched. More CVD patients hadinpatient admissions (14.40% vs. 1.43%, p<0.0001) and emergency room (14.89%vs. 3.66%, p<0.0001), outpatient office (60.90% vs. 47.19%, p<0.0001), outpatient(61.35% vs. 47.99%, p<0.0001) and pharmacy visits (64.41% vs. 54.89%, p<0.0001)compared to those without CVD. CVD patients also incurred higher costs. Costswere significantly higher for CVD patients than for those without CVD ($8,248vs. $1,638, p<0.0001). Conclusions: CVD patients in the VHA population morefrequently utilized health care resources and incurred higher costs than thosewithout CVD.
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    Pdb44 - Health Care Resource Utilization and Costs Among Diabetes Patients Residing in Long-Term Care Facilities
    (Elsevier Science Inc, 2015-05-01) Huang, A; Shrestha, S; Başer, Onur; Yuce, H; Wang, L
    OBJECTIVES: To evaluate health care resource utilization and costs among diabetespatients residing in long-term care facilities. METHODS: Patients diagnosed withdiabetes (International Classification of Diseases, 9th Revision, Clinical Modificationdiagnosis codes 250.x0, 250.x2) were identified using the Long-Term Care MinimumData Set (MDS) linked to 5% Medicare data from 01JAN2009 through 31DEC2010. Theinitial diagnosis date was designated as the index date. A comparison cohort wascreated for patients without diabetes, using 1:1 propensity score matching (PSM)to control for age, region, gender and baseline Charlson Comorbidity Index score.The index date for the comparison cohort was randomly chosen to reduce selection bias. Patients in both cohorts were required to be age ?65 years, have at leasttwo consecutive quarterly assessments documented in MDS data 6 months priorto the index date and have continuous medical and pharmacy benefits for 1-yearpre- and post-index date. Health care resource utilization and costs were comparedbetween the diabetes and comparison cohorts. RESULTS: After applying PSM, 783patients were included in each cohort, and baseline characteristics were balanced.Diabetes patients had a higher percentage of inpatient (31.29% vs. 22.73%, p=0.0001),skilled nursing facility (SNF, 31.55% vs. 22.73%, p<0.001), durable medical equipment (27.46% vs. 16.48%, p<0.0001) and pharmacy visit claims (93.10% vs. 88.76%,p=0.0028) compared to those without diabetes. Patients in the diabetes cohort alsoincurred significantly higher inpatient ($5,801 vs. $3,071, p<0.0001), SNF ($5,532 vs.$3,244, p<0.0001), carrier claim ($3,118 vs. $2,437, p=0.0002) and pharmacy visit costs($5,040 vs. $4,275, p=0.0005) than those in the comparison cohort. CONCLUSIONS:Patients diagnosed with diabetes had significantly higher health care resource utilization and costs than those without diabetes.
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