Fakülteler / Faculties
Permanent URI for this communityhttps://hdl.handle.net/11727/1395
Browse
7 results
Search Results
Item Cost-Effectiveness Analysis of Remdesivir Treatment in COVID-19 Patients Requiring Low-Flow Oxygen Therapy: Payer Perspective in Turkey(2021) Oksuz, Ergun; Malhan, Simten; Gonen, Mustafa Sait; Kutlubay, Zekayi; Keskindemirci, Yilmaz; Jarett, James; Sahin, Toros; Ozcagli, Gokcem; Bilgic, Ahmet; Bibilik, Merve Ozlem; Tabak, Ozlem; 0000-0002-5723-5965; 34379304; K-8238-2012Introduction This study aims to evaluate the cost-effectiveness of remdesivir compared to other existing therapies (SoC) in Turkey to treat COVID-19 patients hospitalized with < 94% saturation and low-flow oxygen therapy (LFOT) requirement. Methods We compared remdesivir as the treatment for COVID-19 with the treatments in the Turkish treatment guidelines. Analyses were performed using data from 78 hospitalized COVID-19 patients with SpO(2) < 94% who received LFOT in a tertiary healthcare facility. COVID-19 episode costs were calculated for 78 patients considering the cost of modeled remdesivir treatment in the same group from the payer's perspective. The incremental cost-effectiveness ratio (ICER) per quality-adjusted life-year (QALY) was calculated for remdesivir versus the SoC for the population identified. For Turkey, a reimbursement threshold value between USD 8599 (1 x per capita gross domestic product-GDP) and USD 25.797 (3 x GDP) per QALY was used. Results In the remdesivir arm, the length of hospital stay (LOS) was 3 days shorter than the SOC. The low ventilator requirement in the remdesivir arm was one factor that decreased the QALY disutility value. In patients who were transferred to intensive care unit (ICU) from the ward, the mean LOS was 17.3 days (SD 13.6), and the mean cost of stay was USD 155.3/day (SD 168.0), while in patients who were admitted to ICU at baseline, the mean LOS was 13.1 days (SD 13.7), and the mean cost of stay was USD 207.9/day (SD 133.6). The mean cost of episode per patient was USD 3461.1 (SD 2259.8) in the remdesivir arm and USD 3538.9 (SD 3296.0) in the SOC arm. Incremental QALYs were estimated at 0.174. Remdesivir treatment was determined to be cost saving vs. SoC. Conclusions Remdesivir, which results in shorter LOS and lower rates of intubation requirements in ICU patients than existing therapies, is associated with higher QALYs and lower costs, dominating SoC in patients with SpO(2) < 94% who require oxygen support.Item Cost of hemophilia A in Turkey: an economic disease burden analysis(2021) Malhan, Simten; Oksuz, Ergun; Antmen, Bulent; Ar, Muhlis Cem; Balkan, Can; Kavakli, Kaan; 0000-0002-5723-5965; 34355649; K-8238-2012Objective: Hemophilia A is the second most common bleeding disorder causing patients to have lifelong follow-up and treatment. Despite being a rare disease, hemophilia A has a high economic burden on individuals and the public. The purpose of this study was to estimate the total disease cost of hemophilia A in Turkey. Materials and Methods: Data used in this analysis were collected through literature review, including studies conducted in Turkey in December 2018. A disease burden analysis was performed by modeling hemophilia A-related costs among patients, their relatives, and the social security system. Two expert panels were held to evaluate real-world data sources and to provide further information. All direct medical and non-medical costs were calculated annually from the Social Security Institution of the Republic of Turkey perspective, while indirect costs were estimated from the patient and community perspective. Results: For the calendar year of 2018, the number of hemophilia A patients in Turkey were estimated to be 5,055, with an average weight of 64.7 kg. The average annual direct medical, direct non-medical, and indirect costs of hemophilia A were calculated as euro93,268 ($109,286; (sic)502,717), euro2,533 ($2,968; (sic)13,655), and euro7,957 ($9,323; (sic)42,888) per patient, respectively, with a total annual cost of euro103,759 ($121,578; (sic)559,259). For the management of patients with inhibitors (4.9%), the average annual total cost was calculated to be euro325,439 ($381,330; (sic)1,754,117) per patient. The total annual disease burden of hemophilia A in 2018 was estimated to be about euro524 million ($614 million; (sic)2.82 billion), which corresponded to 1.6% of the total health expenditure in Turkey. Conclusion: The most important reason hemophilia A has a significant economic burden in Turkey is that replacement therapy is expensive. The major cost contributor was identified as factor replacement therapy. With inhibitor development, the average annual cost increased more than 3-fold.Item COVID-19 healthcare cost and length of hospital stay in Turkey: retrospective analysis from the first peak of the pandemic(2021) Oksuz, Ergun; Malhan, Simten; Gonen, Mustafa Sait; Kutlubay, Zekayi; Keskindemirci, Yilmaz; Tabak, Fehmi; 0000-0002-5723-5965; 34623528; K-8238-2012Background During the COVID-19 pandemic, health care systems are under extreme pressure. This study analyzed health care resource use (HCRU) and costs in patients admitted to the hospital for COVID-19 and aimed to estimate the one-year direct medical cost of the disease in Turkey. Methods This retrospective cohort study was conducted between March and July 2020 in a tertiary hospital (n = 1056) in Istanbul. Patient demographics, clinical and treatment characteristics at admission, comorbidities, disease severity, and costs from a payer perspective were evaluated using the microcosting method. The results include LOS, hospital costs, and univariate and generalized linear models to investigate influencing factors. The data were extrapolated to provide a country-level estimate. Results The mean length of stay was 9.1 days (SD 6.9). The mean length of stay was 8.0 days (4.7) for patients hospitalized in wards versus 14.8 days (SD 12.0) for patients hospitalized in the ICU. In univariate analysis, several factors, including O-2 therapy (+ 3.7 days), high CRP > 41.8 mg/L (+ 3.8 days), and elevated ferritin (+ 3.5), were found to be associated with a longer LOS (p < 0.05). The direct annual medical cost of COVID-19 was estimated at PPP$ 2.1 billion. The COVID-19 pandemic resulted in a direct medical burden that corresponds to 2.0% of the government health expenditures and 0.8 per thousand of Turkey's gross domestic product (GDP). Conclusions Estimating the impact of this pandemic in terms of HCRU and costs to the health care system can help design strategies to manage the pandemic.Item Five-Year Trends in Direct Costs of Chronic Obstructive Pulmonary Disease in Turkey: COPDTURKEY-3(2021) Ozdemir, Tarkan; Kilic, Hatice; Demirci, Nilgun Yilmaz; Ozdilekcan, Cigdem; Bektemur, Guven; Turkkani, Mustafa Hamidullah; Malhan, Simten; Hasanoglu, H. Canan; Koc, Orhan; Ozturk, Can; 35110213OBJECTIVE: Chronic obstructive pulmonary disease (COPD) is one of the major causes of mortality and morbidity worldwide. The aim of this study was to reveal the trend in direct costs related to COPD between 2012 and 2016, and to evaluate hospital costs in 2016, together with their subcomponents. MATERIAL AND METHODS: A population-based descriptive study was conducted using administrative healthcare data in Turkey. The total direct cost of COPD diagnosis-treatment for each year from 2012 to 2016, was calculated. The distribution of the hospital's COPD-related costs for the year 2016 was also examined, together with morbidity data. RESULTS: The direct costs of the patients who were admitted to step 1, step 2, and step 3 health care centers between 2012 and 2016 increased by 41% [895 041 403TL ($496 930 501) in 2012 to 1 263 288 269TL ($417 834 197) in 2016]; the increase was 60% and 24%, for inpatient and outpatient groups respectively. In the year 2016, the direct total cost was 1003TL ($332) per patient. In 2016, mean specialist consultations per patient with mean cost per specialist consultation, and mean emergency visits per patient with mean cost per emergency visit, were 1.7, 42 TL ($14), and 0.4, 71TL ($23) respectively. For the inpatient group, the mean number of hospitalizations per patient, mean number of hospitalization days, and the mean cost per hospitalization were 0.4, 6.5, and 1926T1 ($637), respectively. CONCLUSION: When the readmissions of patients with COPD were evaluated together with the costs, and compared with the statistics from other countries, it was found that the costs per patient were lower in Turkey. However, the reasons for the significant rise in inpatient costs compared to outpatient costs should be investigated. Further investigations are required regarding pulmonary rehabilitation, home health care services, preventive measures for infections, management of comorbidities, and treatment optimization, which may reduce hospitalizations.Item Economic Burden of Pediatric Asthma in Turkey: A Cost of Illness Study from Payer Perspective(2020) Sekerel, Bulent Enis; Turktas, Haluk; Bavbek, Sevim; Oksuz, Ergun; Malhan, Simten; 0000-0002-5723-5965; 32687785; K-8238-2012OBJECTIVES: To estimate economic burden of pediatric asthma in Turkey from payer perspective. MATERIALS AND METHODS: This cost of illness study was based on identification of per patient annual direct medical costs for the management of pediatric asthma in Turkey from payer perspective. Average per patient direct medical cost was calculated based on cost items related to outpatient visits, laboratory and radiological tests, hospitalizations and interventions, drug treatment and equipment, and co-morbidities/complications. RESULTS: Based on total annual per patient costs calculated for outpatient admission ($113.14), laboratory-radiological tests ($35.94), hospitalizations ($725.92), drug treatment/equipment ($212.90) and co-morbidities/complications ($144.62) cost items, total per patient annual direct medical cost related to management of pediatric asthma was calculated to be $1,232.53 from payer perspective. Hospitalizations and interventions (58.9%) was the main cost driver. Direct cost for managing controlled and uncontrolled pediatric asthma were calculated to be $530.17 [key cost driver: drugs/equipment (40.0%)] and $1,023.16 [key cost driver: hospitalization/interventions (59.0%)], respectively. CONCLUSION: Our findings indicate that managing patients with pediatric asthma pose a considerable burden to health economics in Turkey, with hospitalizations identified as the main cost driver and two-fold cost increment in case of uncontrolled disease.Item The impact of addressing modifiable risk factors to reduce the burden of cardiovascular disease in Turkey(2019) Balbay, Yucel; Gagnon-Arpin, Isabelle; Malhan, Simten; Oksuz, Mehmet Ergun; Sutherland, Greg; Dobrescu, Alexandru; Villa, Guillermo; Ertugul, Gulnihal; Habib, Modhar; 0000-0002-5723-5965; 31483303; K-8238-2012Objective: Our study aimed to estimate the impact of addressing modifiable risk factors on the future burden of cardiovascular diseases (CVD) in the general population and in two high-risk populations (heterozygous familial hypercholesterolemia and secondary prevention) for Turkey. Methods: One model investigated the impact of reaching the World Health Organization (WHO) voluntary targets for tobacco use, hypertension, type 2 diabetes, obesity and physical inactivity in the general population. Another model estimated the impact of reducing LDL-cholesterol in two high-risk populations through increased access to effective treatment. Inputs for the models include disease and risk factor prevalence rates, a population forecast, baseline CVD event rates, and treatment effectiveness, primarily derived from the published literature. Direct costs to the public health care system and indirect costs from lost production are included, although the cost of programs and pharmacological interventions to reduce risk factors were not considered. Results: The value of reaching WHO risk factor reduction targets is estimated at US$9.3 billion over the next 20 years, while the value of reducing LDL-cholesterol is estimated at up to US$8.1 billion for high-risk secondary prevention patients and US$691 million for heterozygous familial hypercholesterolemia patients. Conclusion: Efforts to achieve WHO risk factor targets and further lower LDL-cholesterol through increased access to treatment for high-risk patients are projected to greatly reduce the growing clinical and economic burden of CVD in Turkey.Item Cost of illness among patients with diabetic foot ulcer in Turkey(2016) Oksuz, Ergun; Malhan, Simten; Sonmez, Bilge; Tekin, Rukiye Numanoglu; 0000-0002-5723-5965; 27795820; K-8238-2012AIM To evaluate the annual cost of patients with Wagner grade 3-4-5 diabetic foot ulcer (DFU) from the public payer's perspective in Turkey. METHODS This study was conducted focused on a time frame of one year from the public payer's perspective. Cost-of-illness (COI) methodology, which was developed by the World Health Organization, was used in the generation of cost data. By following a clinical path with the COI method, the main total expenses were reached by multiplying the number of uses of each expense item, the percentage of cases that used them and unit costs. Clinical guidelines and real data specific to Turkey were used in the calculation of the direct costs. Monte Carlo Simulation was used in the study as a sensitivity analysis. RESULTS The following were calculated in DFU treatment from the public payer's perspective: The annual average per patient outpatient costs $579.5 (4.1%), imaging test costs $283.2 (2.0%), laboratory test costs $284.8 (2.0%), annual average per patient cost of intervention, rehabilitation and trainings $2291.7 (16.0%), annual average per patient cost of drugs used $2545.8 (17.8%) and annual average per patient cost of medical materials used in DFU treatment $735.0 (5.1%). The average annual per patient cost for hospital admission is $7357.4 (51.5%). The average per patient complication cost for DFU is $210.3 (1.5%). The average annual per patient cost of DFU treatment in Turkey is $14287.70. As a result of the sensitivity analysis, the standard deviation of the analysis was $5706.60 (n = 5000, mean = $14146.8, 95% CI: $13988.6-$14304.9). CONCLUSION The health expenses per person are $-PPP 1045 in 2014 in Turkey and the average annual per patient cost for DFU is 14-fold of said amount. The total health expense in 2014 in Turkey is $-PPP 80.3 billion and the total DFU cost has a 3% share in the total annual health expenses for Turkey. Hospital costs are the highest component in DFU disease costs. In order to prevent DFU, training of the patients at risk and raising consciousness in patients with diabetes mellitus (DM) will provide benefits in terms of economy. Appropriate and efficient treatment of DM is a health intervention that can prevent complications.