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1.
Vox Sang ; 100(2): 196-203, 2011 Feb.
Article in English | MEDLINE | ID: mdl-20726957

ABSTRACT

BACKGROUND: Cost-effectiveness analyses of blood safety interventions require estimates of the life expectancy after blood product transfusion. These are best derived from survival after blood transfusion, per age group and blood component type. STUDY DESIGN AND METHODS: In the PROTON (PROfiles of TransfusiON recipients) study transfusion recipient data was collected from a hospital sample covering 28% of the total blood use between 1996 and 2006 in the Netherlands. The dataset includes date of transfusion, blood component type transfused and recipient identification details. PROTON data were individually matched to mortality data of the Netherlands. Survival after first transfusion and after any transfusion was calculated, per blood component type and age group. PROTON mortality rates were compared to mortality rates in the general population. The results were used to estimate survival beyond the study period and to estimate life expectancy after transfusion. RESULTS: Of all 2,405,012 blood product transfusions in the PROTON dataset, 92% was matched to the national Dutch Municipal Population Register, which registers all deaths. After 1 year, survival after any transfusion was 65·4%, 70·4% and 53·9% for RBC, FFP and PLT respectively. After 5 years, this was 46·6%, 58·8% and 39·3% for RBC, FFP and PLT, respectively. Ten years after transfusion, mortality rates of recipients are still elevated in comparison with the general population. CONCLUSION: Mortality rates of transfusion recipients are higher than those of the general population, but the increase diminishes over time. The mortality rates found for the Netherlands are lower than those found in comparable studies for other countries.


Subject(s)
Blood Component Transfusion/mortality , Databases, Factual , Registries , Age Factors , Female , Humans , Male , Netherlands , Retrospective Studies , Time Factors
2.
Vox Sang ; 99(1): 54-64, 2010 Jul 01.
Article in English | MEDLINE | ID: mdl-20202179

ABSTRACT

BACKGROUND: Transfusion recipient data are needed for correct estimation of cost-effectiveness in terms of recipient outcomes after transfusion. Also, such data are essential for monitoring blood use, estimation of future blood use and benchmarking. STUDY DESIGN AND METHODS: A sample of 20 of 93 Dutch hospitals was selected. Datasets containing all blood product transfusions between 1996 and 2006 were extracted from hospital blood bank computer systems, containing transfusion date, blood product type and recipient characteristics such as gender, address, date of birth. The datasets were appended and matched to national hospitalization datasets including primary discharge diagnoses (ICD-9). Using these data, we estimated distributions of blood recipient characteristics in the Netherlands. RESULTS: The dataset contains information on 290,043 patients who received 2,405,012 blood products (1,720,075 RBC, 443,697 FFP, 241,240 PLT) from 1996 to 2006. This is 28% of total blood use in the Netherlands during this period. Comparable diagnosis and age distributions of all hospitalizations indicate included hospitals to be representative, per hospital category, for the Netherlands. Of all red blood cells (RBC), fresh-frozen plasma (FFP) and platelets (PLT), respectively 1.7%, 2.5% and 4.5% were transfused to neonates. Recipients of 65 years or older received 57.6% of RBC, 41.4% of FFP and 29.0% of PLT. Most of the blood products were transfused to patients with diseases of the circulary system (25.1%) or neoplasms (22.0%). CONCLUSION: Transfusion data from a limited sample of hospitals can be used to estimate national distributions of blood recipient characteristics.


Subject(s)
Blood Transfusion/statistics & numerical data , Adolescent , Adult , Age Factors , Aged , Blood Transfusion/economics , Child , Child, Preschool , Humans , Infant , Middle Aged , Netherlands , Sex Factors , Treatment Outcome , Young Adult
3.
Ann Oncol ; 21(7): 1529-1536, 2010 Jul.
Article in English | MEDLINE | ID: mdl-19955334

ABSTRACT

BACKGROUND: Aromatase inhibitors are used as adjuvant therapy for breast cancer (BC) and are associated with accelerated bone loss. Zoledronic acid (ZOL) prevents aromatase inhibitor-associated bone loss (AIBL) in postmenopausal women with BC. This analysis assessed the cost-effectiveness of ZOL for prevention of fractures in postmenopausal women with BC. MATERIALS AND METHODS: A Markov model was developed to project lifetime incidence of fractures, quality-adjusted life years (QALY), and costs as a function of bone mineral density (BMD) for women with early-stage BC receiving letrozole alone or with ZOL. Two strategies of ZOL therapy were compared with no treatment: starting ZOL treatment only when BMD levels decreased ('delayed ZOL') and starting ZOL simultaneously with letrozole therapy ('upfront ZOL'). RESULTS: Delayed ZOL therapy was estimated to cost 16,069 pounds per QALY, when compared with not administering bisphosphonates for AIBL prevention. The corresponding cost per QALY gained for upfront ZOL versus no treatment was estimated at 21,973 pounds. The cost-effectiveness ratio for upfront versus delayed therapy was estimated at 24,868 pounds per QALY gained. CONCLUSION: Both delayed and upfront therapy with ZOL for the prevention of AIBL and fractures in BC patients in the UK appear to result in highly acceptable cost-effectiveness ratios.


Subject(s)
Aromatase Inhibitors/adverse effects , Bone Density Conservation Agents/therapeutic use , Breast Neoplasms/drug therapy , Breast Neoplasms/economics , Diphosphonates/therapeutic use , Imidazoles/therapeutic use , Osteoporosis, Postmenopausal/economics , Osteoporosis, Postmenopausal/prevention & control , Aged , Aged, 80 and over , Bone Density/drug effects , Breast Neoplasms/pathology , Cohort Studies , Cost-Benefit Analysis , Female , Humans , Letrozole , Markov Chains , Middle Aged , Neoplasm Staging , Nitriles/adverse effects , Quality-Adjusted Life Years , Salvage Therapy , Survival Rate , Treatment Outcome , Triazoles/adverse effects , Zoledronic Acid
4.
Transfusion ; 49(2): 311-9, 2009 Feb.
Article in English | MEDLINE | ID: mdl-19389213

ABSTRACT

BACKGROUND: To further reduce the risk of hepatitis B virus (HBV) transmission by blood transfusion, nucleic acid testing (NAT) can be employed. The aim of this study is to estimate the incremental cost-effectiveness ratio (ICER) in the Netherlands of employing a triplex NAT assay aimed at HBV nucleic acid detection in individual donations (ID-NAT) or in minipools of 6 donations (MP-6-NAT), compared to a triplex NAT assay in minipools of 24 donations (MP-24-NAT). STUDY DESIGN AND METHODS: A mathematical model was made of the whole transfusion chain from donors to recipients of blood in the Netherlands. The annual number of avoided HBV transmissions was estimated with the window-period incidence model. The natural history of a HBV infection in recipients is described by a Markov model. RESULTS: The ICER of adding HBV MP-6-NAT or HBV ID-NAT in the Netherlands is Euro303,218 (95% confidence interval [CI], Euro233,001-Euro408,388) and Euro518,995 (95% CI, Euro399,359-Euro699,120) per quality-adjusted life-year, respectively. The ICER strongly correlates with the age of transfusion recipients. CONCLUSION: The cost-effectiveness of additional HBV NAT is limited by the limited loss of life caused by HBV transmission. Despite a higher effectiveness, HBV ID-NAT is less cost-effective than MP-6-NAT due to higher costs. A future equivalent participation of immigrants from HBV-endemic countries in the donor base renders HBV NAT only slightly more cost-effective.


Subject(s)
Blood Donors , Blood Transfusion/economics , DNA, Viral/blood , Hepatitis B virus/genetics , Hepatitis B/transmission , Cost-Benefit Analysis/economics , Hepatitis B/prevention & control , Humans , Incidence , Markov Chains , Models, Economic , Models, Statistical , Netherlands/epidemiology , Nucleic Acid Amplification Techniques/economics , Transfusion Reaction
5.
Vox Sang ; 96(4): 298-308, 2009 May.
Article in English | MEDLINE | ID: mdl-19228368

ABSTRACT

BACKGROUND AND OBJECTIVES: European legislation requires manufacturers of plasma products to report epidemiological data on human immunodeficiency virus, hepatitis B virus and hepatitis C virus in donor populations. The incidence rates of such infections are directly related to the risk of infection transmission. We propose two statistical tests to evaluate these incidence rates. MATERIALS AND METHODS: Infection data of the four Dutch blood collection centres from 2003 through 2006 were analysed. For transversal comparison of centres and detection of increased incidence rates, a new statistical test was developed (outlier test). For longitudinal detection of trends in incidence rates, a generic test for trend is proposed. The power and risk of non-detection are evaluated for both tests. RESULTS: Application of the outlier test did not reveal any significantly increased incidence rates among centres in The Netherlands. The test for trend showed no significant increase in incidence rates in individual centres, but on national level a statistically significant increase in hepatitis C virus incidence was observed (P-value of 0.01). CONCLUSION: The proposed tests allow signalling of outlier centres and trends in incidence rates both at individual centre and at national levels. Graphical support and the use of as much relevant historical data as possible is recommended. The statistical tests described are generic and can be applied by any blood establishment and plasma fractionation institute.


Subject(s)
Blood Transfusion/statistics & numerical data , HIV Infections/epidemiology , Hepatitis B/epidemiology , Hepatitis C/epidemiology , Transfusion Reaction , Blood Transfusion/legislation & jurisprudence , DNA, Viral/blood , European Union , HIV Infections/blood , HIV Infections/virology , Hepatitis B/blood , Hepatitis B/virology , Hepatitis C/blood , Hepatitis C/virology , Humans , Incidence , Risk Factors , Statistics as Topic/methods
7.
Curr Med Res Opin ; 24(2): 349-58, 2008 Feb.
Article in English | MEDLINE | ID: mdl-18081988

ABSTRACT

BACKGROUND: Previous analyses have shown that long-acting risperidone (LAR) is cost-effective in several Western countries. In Portugal, however, the costs of key services are lower. Therefore, available evidence in other countries may have limited relevance. OBJECTIVE: To estimate costs and effects of LAR versus a conventional depot and a short-acting oral atypical antipsychotic over a 5-year period in Portugal. METHODS: An existing discrete event model was adapted to reflect the Portuguese healthcare setting, based on expert opinion, clinical, epidemiological, and cost data. The model compares three scenarios. In scenario 1, patients start with a conventional depot; in scenario 2, with LAR; and in scenario 3, with oral risperidone. The model simulates individual patient histories while taking into account patient characteristics such as risk to society and side-effects. Subsequently, the model simulates patient histories in terms of outpatient appointments, psychotic episodes, treatment, compliance, symptom scores, lack of ability to take care presenting an actual risk, and treatment setting. Outcomes were number of psychotic episodes, cumulative symptom score and direct medical costs. Univariate sensitivity analyses were carried out. RESULTS: Compared to a conventional depot and an oral atypical, LAR was estimated to save approximately euro 3603 and euro 4682 per patient (respectively) and avoid 0.44 and 0.59 relapses per patient in 5 years. Sensitivity analyses showed that the outcome of dominance was only sensitive to estimates about unit costs of hospital/institutionalization, potential risk, and to the reduction in symptoms by use of atypicals. CONCLUSION: Based on this modeling exercise, it could be expected that LAR may be a cost-effective treatment with limited budget impact in Portugal. However, further studies are required to test the generalizability of the results of the present modeling study to the larger population of Portugal.


Subject(s)
Antipsychotic Agents/economics , Psychotic Disorders/drug therapy , Risperidone/economics , Antipsychotic Agents/pharmacology , Antipsychotic Agents/therapeutic use , Budgets , Cost-Benefit Analysis , Delayed-Action Preparations/economics , Drug Costs , Hospitalization/economics , Humans , Models, Econometric , Outcome Assessment, Health Care , Portugal , Psychological Tests , Psychometrics , Risperidone/pharmacology , Risperidone/therapeutic use , Surveys and Questionnaires , Time Factors
8.
Haemophilia ; 14(1): 127-32, 2008 Jan.
Article in English | MEDLINE | ID: mdl-18005148

ABSTRACT

BACKGROUND: The need for clearly reported studies evaluating the cost of prophylaxis and its overall outcomes has been recommended from previous literature. OBJECTIVES: To establish minimal ''core standards'' that can be followed when conducting and reporting economic evaluations of hemophilia prophylaxis. METHODS: Ten members of the IPSG Economic Analysis Working Group participated in a consensus process using the Nominal Groups Technique (NGT). The following topics relating to the economic analysis of prophylaxis studies were addressed; Whose perspective should be taken? Which is the best methodological approach? Is micro- or macro-costing the best costing strategy? What information must be presented about costs and outcomes in order to facilitate local and international interpretation? RESULTS: The group suggests studies on the economic impact of prophylaxis should be viewed from a societal perspective and be reported using a Cost Utility Analysis (CUA) (with consideration of also reporting Cost Benefit Analysis [CBA]). All costs that exceed $500 should be used to measure the costs of prophylaxis (macro strategy) including items such as clotting factor costs, hospitalizations, surgical procedures, productivity loss and number of days lost from school or work. Generic and disease specific quality of lífe and utility measures should be used to report the outcomes of the study. CONCLUSIONS: The IPSG has suggested minimal core standards to be applied to the reporting of economic evaluations of hemophilia prophylaxis. Standardized reporting will facilitate the comparison of studies and will allow for more rational policy decisions and treatment choices.


Subject(s)
Evaluation Studies as Topic , Health Care Costs , Hemophilia A/economics , Hemophilia A/prevention & control , Premedication/economics , Consensus , Costs and Cost Analysis/methods , Humans , Reference Standards
9.
Rheumatology (Oxford) ; 46(8): 1320-8, 2007 Aug.
Article in English | MEDLINE | ID: mdl-17545684

ABSTRACT

OBJECTIVES: This study evaluated the cost effectiveness of adalimumab vs conventional therapy in patients with active ankylosing spondylitis (AS). METHODS: The analysis was based on pooled data from two Phase III studies of adalimumab in active AS. Patients with an inadequate response to >/=1 NSAID received adalimumab 40 mg every other week (n = 246) or placebo (n = 151) for 24 weeks. A microsimulation model was developed with patients being treated with adalimumab according to the International ASAS Consensus Statement and BSR guidelines. The pooled adalimumab data, as well as data from the Outcome Assessment in AS International Study (OASIS) database and the literature, were used to model patients' BASDAI and BASFI scores and costs and health-related quality of life associated with various degrees of disease activity. Costs (in 2004 British pound) of AS, drug, administration, monitoring, hospitalization and AEs were calculated from the perspective of the UK NHS. Discounting was applied at 3.5% per year for costs and benefits as per the NICE reference case for economic evaluations. Uncertainty was addressed via sensitivity analyses. RESULTS: The incremental cost-effectiveness ratio (ICER) of adalimumab vs conventional therapy was estimated to improve with longer time horizons (48 weeks to 5 and 30 yrs). The central estimate was that, over 30 yrs, adalimumab therapy yielded 1.03 more quality-adjusted life-years (QALYs) per patient initiating therapy. Some AS treatment-related costs were estimated to be offset by adalimumab (at 10,750 pounds/patient), leaving a total incremental cost (adalimumab vs conventional therapy) at 23,857 pounds per patient. The 30-yr ICER of adalimumab vs conventional therapy was estimated at 23 pounds 097/QALY. Sensitivity analyses demonstrated robustness of results. When indirect costs were also included (analysis from societal perspective), ICER improved to 5093 pounds/QALY. CONCLUSIONS: This analysis indicates that adalimumab, when used according to UK treatment guidelines, is cost-effective vs conventional therapy for treating AS patients.


Subject(s)
Antibodies, Monoclonal/therapeutic use , Antirheumatic Agents/therapeutic use , Spondylitis, Ankylosing/drug therapy , Spondylitis, Ankylosing/economics , Adalimumab , Adult , Antibodies, Monoclonal/economics , Antibodies, Monoclonal, Humanized , Antirheumatic Agents/economics , Clinical Trials, Phase III as Topic , Cost-Benefit Analysis , Drug Costs/statistics & numerical data , Drug Monitoring/methods , Female , Health Care Costs/statistics & numerical data , Humans , Male , Practice Guidelines as Topic , Quality-Adjusted Life Years , Randomized Controlled Trials as Topic , Sensitivity and Specificity , Severity of Illness Index , Tumor Necrosis Factor-alpha/antagonists & inhibitors , United Kingdom
10.
J Cardiovasc Surg (Torino) ; 47(2): 161-70, 2006 Apr.
Article in English | MEDLINE | ID: mdl-16572090

ABSTRACT

AIM: We designed a study to estimate the economic impact of CoSeal Surgical Sealant for the prevention of anastomotic bleeding in cardiac and vascular surgery. We also explored the potential economic value of CoSeal as a means of inhibiting the formation of pericardial tissue adhesions. METHODS: A Delphi panel of 6 expert vascular and cardiac surgeons provided the assumptions and estimates needed to develop a decision analysis model to assess the impact of sealant on the costs associated with low- and high-risk forms of cardiac (valve replacement/reconstruction) and vascular (abdominal aortic aneurysm [AAA] repair, femoral bypass grafting) surgery. The primary outcome was incremental cost per patient. RESULTS: For valve repair/replacement surgery, sealant was expected to confer cost-savings in high-risk but not low-risk procedures. Predicted cost savings for high-risk AAA repairs were substantial, but minimal in the overall AAA group. Cost-savings were predicted for sealant use in all femoral-popliteal ePTFE bypass grafts, but in high-risk femoral-femoral ePTFE bypass grafts only. CONCLUSIONS: According to our decision analysis model, routine use of surgical sealant in select subgroups may confer considerable economic benefits to health service budgets. Future research should aim at testing this model in a real-world hospital setting. Assessment of the value of CoSeal in the prevention of postsurgical adhesions showed that expert surgeons see a need for effective prophylaxis. Further research into the clinical and economic benefit of this intervention is required.


Subject(s)
Blood Loss, Surgical/prevention & control , Cardiovascular Surgical Procedures/adverse effects , Decision Support Techniques , Hemostasis, Surgical/economics , Polyethylene Glycols/economics , Tissue Adhesives/economics , Anastomosis, Surgical/adverse effects , Cost-Benefit Analysis , Humans , Polymers/economics , Tissue Adhesions/etiology , Tissue Adhesions/prevention & control
11.
Heart ; 91(4): 507-12, 2005 Apr.
Article in English | MEDLINE | ID: mdl-15772214

ABSTRACT

OBJECTIVE: To assess the balance between costs and effects of the sirolimus eluting stent in the treatment of single native de novo coronary lesions in the RAVEL (randomised study with the sirolimus eluting Bx Velocity balloon expandable stent in the treatment of patients with de novo native coronary artery lesions) study. DESIGN: Multicentre, double blind, randomised trial. SETTING: Percutaneous coronary intervention for single de novo coronary lesions. PATIENTS: 238 patients with stable or unstable angina. INTERVENTIONS: Randomisation to sirolimus eluting stent or bare stent implantation. MAIN OUTCOME MEASURES: Patients were followed up to one year and the treatment effects were expressed as one year survival free of major adverse cardiac events (MACE). Costs were estimated as the product of resource utilisation and Dutch unit costs. RESULTS: At one year, the absolute difference in MACE-free survival was 23% in favour of the sirolimus eluting stent group. At the index procedure, sirolimus eluting stent implantation had an estimated additional procedural cost of 1286. At one year, however, the estimated additional cost difference had decreased to 54 because of the reduction in the need for repeat revascularisations in the sirolimus group (0.8% v 23.6%; p < 0.01). After adjustment of actual results for the consequences of angiographic follow up (correction based on data from the BENESTENT (Belgium Netherlands stent) II study), the difference in MACE-free survival was estimated at 11.1% and the additional one year costs at 166. CONCLUSIONS: The one year data from RAVEL suggest an attractive balance between costs and effects for sirolimus eluting stents in the treatment of single native de novo coronary lesions. The cost effectiveness of drug eluting stents in more complex lesion subsets remains to be determined.


Subject(s)
Coronary Stenosis/therapy , Immunosuppressive Agents/administration & dosage , Sirolimus/administration & dosage , Stents/economics , Coronary Angiography/economics , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/economics , Coronary Restenosis/prevention & control , Coronary Stenosis/economics , Cost-Benefit Analysis , Disease-Free Survival , Double-Blind Method , Female , Humans , Immunosuppressive Agents/therapeutic use , Male , Metals , Netherlands , Sirolimus/therapeutic use , Surface Properties
13.
Ned Tijdschr Geneeskd ; 148(20): 975-8, 2004 May 15.
Article in Dutch | MEDLINE | ID: mdl-15181721

ABSTRACT

Severe sepsis is a life-threatening complication of infection. Due to associated organ-failure treatment in an Intensive Care Unit is usually indicated. Since sepsis is defined by the combination and progression of clinical events, correct definitions are essential to enable good comparison between study results and determination of suitable treatment. Severe sepsis is associated with a mortality of 20-60% and decreases the health-related quality of life in survivors. It is estimated that annually in the Netherlands 9000 patients are admitted to an Intensive Care Unit with severe sepsis. Direct medical costs of severe sepsis are estimated at [symbol: see text] 19,500 per patient. Costs correlate strongly with the length of stay. Annually Euro dollar 168,6 million is spent on severe sepsis, which represents 0.5% of all health-care costs and 1.7% of the annual hospital budget in the Netherlands.


Subject(s)
Critical Care , Systemic Inflammatory Response Syndrome/complications , Costs and Cost Analysis , Critical Care/economics , Humans , Multiple Organ Failure/etiology , Netherlands/epidemiology , Prevalence , Quality of Life , Systemic Inflammatory Response Syndrome/economics , Systemic Inflammatory Response Syndrome/mortality , Treatment Outcome
14.
Cardiovasc Surg ; 11(5): 381-7, 2003 Oct.
Article in English | MEDLINE | ID: mdl-12958549

ABSTRACT

OBJECTIVE: (1) To evaluate the quality of life (QoL) scores, assessed with SF36 and EuroQol (EQ-5D), of long term survivors after mechanical aortic valve replacement (mAVR); (2) to study the association of QoL with NYHA score, number of major bleeding and thrombo-embolic events and follow-up time; (3) to compare QoL scores of long term mAVR survivors with QoL scores of other populations. METHODS: In total 312 patients had a mAVR between 1964 and 1974 at St. Antonius Hospital Nieuwegein (NL). Mean age at operation was 41 (sd=12). Mean postoperative NYHA class at 1-year follow-up was 1.7 (sd=0.7). In 2001 the survivors (n=78; 25%) were followed-up for late events, NYHA class and QoL scores. 69 patients (93%) returned completed questionnaires. RESULTS: Mean duration of follow-up was 30 years (sd=1.8). Mean age of responders was 65 years (sd=10, range 47-93). In 2001, NYHA class of responders was 2 (sd=0.9). The mean (sd) SF36 scores for responders were: 64 (29) for physical function, 64 (29) for role-physical, 80 (30) for bodily pain, 55 (25) for general health, 63 (23) for vitality, 73 (29) for social functioning, 70 (38) for role-emotional, 76 (18) for mental health. The mean EQ-5D score of responders was: 61 (13). These SF36 and EQ-5D scores are comparable to those of other populations (e.g. cancer, diabetes type-2, migraine, chronic liver disease and iliac artery occlusive disease and Dutch general population). For responders a moderate to high association of SF36 and EQ-5D scores and their NYHA scores (R2=0.36) was found. The number of major bleeding events, age, sex and survival time were not related to QoL. CONCLUSION: At long term follow-up (mean 30 years) of patients who had mAVR, QoL was relatively high; it was moderately to highly associated with their NYHA class; bleeding and thromboembolic events seem to be of little importance for the QoL at long term follow-up. QoL at long term follow-up of patients who had mAVR is comparable to other cross sectional designed studies with short term follow-up and other population.


Subject(s)
Aortic Valve/surgery , Heart Valve Prosthesis Implantation/rehabilitation , Quality of Life , Adult , Aged , Aged, 80 and over , Female , Follow-Up Studies , Health Status Indicators , Heart Valve Prosthesis Implantation/psychology , Humans , Male , Middle Aged , Postoperative Hemorrhage/etiology , Thromboembolism/etiology , Treatment Outcome
15.
Aliment Pharmacol Ther ; 17(10): 1237-45, 2003 May 15.
Article in English | MEDLINE | ID: mdl-12755837

ABSTRACT

BACKGROUND: Proton pump inhibitors have a prominent role in the management of acid-related diseases. Controlling expenses on proton pump inhibitors would yield great economic benefits for Dutch health care. AIM: To investigate whether clinical differences in proton pump inhibitors exist. METHODS: We searched Medline, EMBASE and the Cochrane Library. We identified papers in English, German, French or Dutch in which two or more proton pump inhibitors were compared under the same clinical conditions in gastro-oesophageal reflux disease, peptic ulcer disease or Helicobacter pylori eradication. The pooled relative risks were calculated using the Mantel-Haenszel method. RESULTS: Two significant differences were found in the proton pump inhibitors compared. In gastro-oesophageal reflux disease, esomeprazole 40 mg was superior to omeprazole 20 mg (relative risk, 1.18; 95% confidence interval, 1.14-1.23). In peptic ulcer disease, pantoprazole 40 mg was superior to omeprazole 20 mg (relative risk, 1.07; 95% confidence interval, 1.02-1.13). In Helicobacter pylori eradication, no significant differences were found. CONCLUSIONS: Both significant differences found were in favour of the highest dose of proton pump inhibitor on a milligram basis. This indicates that the difference may be dose dependent and not proton pump inhibitor specific. Therefore, when prescribing proton pump inhibitors, arguments other than clinical efficacy, such as those related to pharmaco-economics, may be considered.


Subject(s)
Anti-Ulcer Agents/therapeutic use , Gastroesophageal Reflux/drug therapy , Helicobacter Infections/drug therapy , Helicobacter pylori/drug effects , Proton Pump Inhibitors , Administration, Oral , Humans , Randomized Controlled Trials as Topic
16.
Vaccine ; 21(15): 1719-24, 2003 Apr 02.
Article in English | MEDLINE | ID: mdl-12639495

ABSTRACT

Rationale and design of a study on the cost-effectiveness of the Dutch influenza vaccination campaign are described. During two influenza epidemics, about 75,000 primary care patients recommended for influenza vaccination are included. Cases have fatal or non-fatal influenza, pneumonia, otitis media, acute respiratory disease (ARD), heart failure, myocardial infarction, depression or diabetes dysregulation. Per case four controls are sampled, frequency matched on age and high-risk co-morbidity (<18 years, 18-64, >/=65 healthy, >/=65 with co-morbidity). Baseline and outcome data are retrieved from patient records. During the 1999-2000 influenza A epidemic 5891 (7.9%) high-risk children, 24,848 (33.2%) high-risk adults aged 18-64 years, 18,484 (24.7%) elderly with co-morbidity and 25,527 (34.1%) healthy elderly had been included. The mortality rate was 5.2 per 1000 and 2035 non-fatal outcome events were recorded (incidence rate 27.2/1000).


Subject(s)
Immunization Programs/methods , Influenza, Human/epidemiology , Influenza, Human/prevention & control , Population Surveillance/methods , Adolescent , Adult , Aged , Case-Control Studies , Child , Child, Preschool , Confidence Intervals , Cost-Benefit Analysis , Humans , Immunization Programs/economics , Immunization Programs/statistics & numerical data , Infant , Infant, Newborn , Influenza Vaccines/economics , Influenza Vaccines/therapeutic use , Influenza, Human/economics , Logistic Models , Middle Aged , Netherlands/epidemiology , Odds Ratio
17.
Scand J Gastroenterol Suppl ; (239): 3-10, 2003.
Article in English | MEDLINE | ID: mdl-14743876

ABSTRACT

Taking the right decision in health care may be as much an art as a science. However, without exception and whatever the decision, usage is made of scarce resources and they may be used in an alternative way. This implies costs and there comes a time at which the various options have to be assessed in comparison with their effects. Cost-effectiveness aims at informing decision-makers about the balance between the costs and effects of alternative therapies.


Subject(s)
Cost-Benefit Analysis , Health Care Costs , Health Care Rationing , Humans , Treatment Outcome
18.
Acta Radiol ; 43(5): 528-32, 2002 Sep.
Article in English | MEDLINE | ID: mdl-12423465

ABSTRACT

PURPOSE: To assess and quantify the association of haemophilic arthropathy, measured by the radiological Pettersson score, with the number of joint bleeds suffered by the patient. MATERIAL AND METHODS: In order to quantify the effect of the cumulative number of joint bleeds on the Pettersson score, a study was performed using 295 Pettersson scores obtained in 117 patients with severe haemophilia. The patients were born between 1965 and 1994, and had no history of inhibitors. The number of joint bleeds was determined annually from the entry in the clinic and onwards. The localization of bleeds was not assessed. The patients entered the clinic at a median age of 3.6 years, and received intermediate dose prophylaxis, starting at a median age of 5.3 years. Evaluation of 1643 treatment years showed a mean of 6.8 joint bleeds/year. Pettersson scores were obtained at a mean age of 15.9 years (range 1.7-32.9) and had a median value of 4 points (range 0-50). RESULTS AND CONCLUSION: The Pettersson scores began to rise after the age of 5 years and increased with one point for every 13 joint bleeds (95% confidence interval 11-15). No evidence was found of 'autonomous' progression of Pettersson scores, independent of bleeds.


Subject(s)
Hemarthrosis/etiology , Hemophilia A/complications , Adolescent , Adult , Child , Child, Preschool , Follow-Up Studies , Humans , Infant , Severity of Illness Index
19.
J Vasc Surg ; 34(2): 254-62, 2001 Aug.
Article in English | MEDLINE | ID: mdl-11496277

ABSTRACT

PURPOSE: Several antithrombotic therapies are available for the treatment of patients with peripheral vascular diseases. It is unknown how quality of life and costs of treatment are influenced by different therapies. This study assessed the cost-effectiveness of oral anticoagulants versus aspirin in patients after infrainguinal bypass grafting surgery. METHODS: Clinical outcome events and event-free survival were collected from 2650 patients in 77 centers who participated in the Dutch Bypass Oral anticoagulants or Aspirin trial. Approximately half the patients had critical ischemia; 60% received vein grafts, and 20% had femorocrural bypass grafts. A model that was primarily driven by clinical outcome events was used as a means of determining quality of life (EuroQol EQ-5D) and costs for each patient. The main outcome measure was the incremental health care costs in relation to the additional number of quality-adjusted life years and the additional number of event-free years. RESULTS: The mean costs during the 21 months of follow-up were epsilon 6875 per patient in the oral anticoagulants group versus epsilon 7072 in the aspirin group (difference, 197; 95% CI, -746 to 343). The event-free survival was 1.10 years in the group treated with oral anticoagulants versus 1.09 years in the group treated with aspirin (difference, 0.01; 95% CI, -0.07 to 0.08), whereas the corresponding quality-adjusted life years were 1.06 and 1.05, respectively (difference, 0.01; 95% CI, -0.03 to 0.06). CONCLUSION: Health care costs, event-free survival, and quality-adjusted life years in patients after infrainguinal bypass surgery were not different in patients treated with aspirin and patients treated with oral anticoagulants. The extra costs of monitoring patients treated with oral anticoagulants were limited and play no role in the decision for treatment.


Subject(s)
Anticoagulants/administration & dosage , Anticoagulants/economics , Aspirin/administration & dosage , Aspirin/economics , Fibrinolytic Agents/administration & dosage , Postoperative Complications/prevention & control , Vascular Surgical Procedures/adverse effects , Aged , Cost-Benefit Analysis , Female , Humans , Leg/blood supply , Leg/surgery , Male , Quality of Life , Treatment Outcome
20.
Eur Heart J ; 22(16): 1476-84, 2001 Aug.
Article in English | MEDLINE | ID: mdl-11482921

ABSTRACT

AIMS: The EPISTENT study has demonstrated that the combined use of abciximab and stenting as an adjunct to PTCA leads to increased event-free survival compared to either using abciximab or stenting alone. However, this combined strategy may be costly and the additional costs have to be weighted against the additional effects. METHOD AND RESULTS: The 6-months efficacy data from the EPISTENT study are combined with Dutch estimates of unit costs. Adding a stent to a procedure with abciximab further decreases the number of revascularizations at an extra cost of Euros 12,000 (95% upper limit (u.l.) Euros 31,000) per additional major adverse cardiac event-free survivor. Adding abciximab to a stenting procedure decreases the incidence of myocardial infarctions at an extra cost of Euros 13,000 (95% u.l. Euros 27,000) per additional myocardial infarction-free survivor. In the subgroup of diabetics, adding abciximab improves revascularization rates as well, resulting in a cost-efficacy rate of Euros 2000 (95% u.l. Euros 25,000) per additional MACE-free survivor, with uncertainty regions indicating potential costs savings. CONCLUSION: The combination of stenting and abciximab costs about Euros 13,000 to avoid one event after PTCA. In diabetic patients the strategy may be cost-saving.


Subject(s)
Antibodies, Monoclonal/economics , Anticoagulants/economics , Immunoglobulin Fab Fragments/economics , Myocardial Infarction/economics , Platelet Aggregation Inhibitors/economics , Platelet Glycoprotein GPIIb-IIIa Complex/antagonists & inhibitors , Stents/economics , Abciximab , Aged , Antibodies, Monoclonal/therapeutic use , Anticoagulants/therapeutic use , Combined Modality Therapy , Cost-Benefit Analysis , Female , Humans , Immunoglobulin Fab Fragments/therapeutic use , Male , Middle Aged , Myocardial Infarction/mortality , Myocardial Infarction/therapy , Platelet Aggregation Inhibitors/therapeutic use , Risk Factors
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