Patient-level Data (patient-level + data)

Distribution by Scientific Domains


Selected Abstracts


The influence of economic incentives and regulatory factors on the adoption of treatment technologies: a case study of technologies used to treat heart attacks

HEALTH ECONOMICS, Issue 10 2009
Mickael Bech
Abstract The Technological Change in Health Care Research Network collected unique patient-level data on three procedures for treatment of heart attack patients (catheterization, coronary artery bypass grafts and percutaneous transluminal coronary angioplasty) for 17 countries over a 15-year period to examine the impact of economic and institutional factors on technology adoption. Specific institutional factors are shown to be important to the uptake of these technologies. Health-care systems characterized as public contract systems and reimbursement systems have higher adoption rates than public-integrated health-care systems. Central control of funding of investments is negatively associated with adoption rates and the impact is of the same magnitude as the overall health-care system classification. GDP per capita also has a strong role in initial adoption. The impact of income and institutional characteristics on the utilization rates of the three procedures diminishes over time. Copyright © 2008 John Wiley & Sons, Ltd. [source]


The analysis of efficiency among a small number of organisations: How inferences can be improved by exploiting patient-level data

HEALTH ECONOMICS, Issue 6 2008
Kim Rose Olsen
Abstract Those responsible for monitoring and managing the performance of health-care organisations face the common problem that the relationship between observed performance and effort is difficult to establish. A solution is to compare the performance of multiple organisations, but this requires a sufficient number of comparators. Faced with a small sample, it may be possible to exploit other information sources. Multilevel regression models are applied to analyse the performance of six Danish vascular departments in 2004 using a patient-level data set. We find that treatment costs are higher for smokers, older patients, patients with cerebrovascular and pulmonal diseases and for those subject to acute hospitalisation and with longer lengths of stay. Costs are lower for patients who are having follow-up surgery and for patients who receive some form of home care, suggesting that there may be some substitution of care input between vascular departments and other care providers. We estimate the relative efficiency of each department. The construction of confidence intervals allows the six departments to be sorted into two groups containing the least and most efficient departments. Conclusions about relative efficiency are robust to model specification, choice of estimator and hold at the 95% confidence level. Copyright © 2007 John Wiley & Sons, Ltd. [source]


Access to linked administrative healthcare utilization data for pharmacoepidemiology and pharmacoeconomics research in Canada: anti-viral drugs as an example,

PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, Issue 11 2009
Nigel S. B. Rawson PhD
Abstract Purpose Administrative healthcare utilization data from Canadian provinces have been used for pharmacoepidemiology and pharmacoeconomics research, but limited transparency exists about opportunities for data access, who can access them, and processes to obtain data. An attempt was made to obtain data from all 10 provinces to evaluate access and its complexity. Methods An initial enquiry about the process and requirements to obtain data on individual, anonymized patients dispensed any of four anti-viral drugs in the ambulatory setting, linked with data from hospital and physician service claims, was sent to each province. Where a response was encouraging, a technical description of the data of interest was submitted. Results Data were unavailable from the provinces of New Brunswick, Newfoundland and Labrador, and Prince Edward Island, and inaccessible from British Columbia, Manitoba and Ontario due to policies that prohibit collaborative work with pharmaceutical industry researchers. In Nova Scotia, patient-level data were available but only on site. Data were accessible in Alberta, Quebec and Saskatchewan, although variation exists in the currency of the data, time to obtain data, approval requirements and insurance coverage eligibility. Conclusions As Canada moves towards a life-cycle management approach to drug regulation, more post-marketing studies will be required, potentially using administrative data. Linked patient-level drug and healthcare data are presently accessible to pharmaceutical industry researchers in four provinces, although only logistically realistic in three and limited to seniors and low-income individuals in two. Collaborative endeavours to improve access to provincial data and to create other data resources should be encouraged. Copyright © 2009 John Wiley & Sons, Ltd. [source]


Latest news and product developments

PRESCRIBER, Issue 7 2008
Article first published online: 28 APR 200
Referrals from Boots The majority of people requesting Boots' erectile dysfunction or weight management programmes are referred to their GP(Pharm J 2008;280:297). The programmes are run under patient group directions and exclude people with elevated blood pressure, blood glucose or cholesterol. Over 80 per cent of customers screened for the erectile dysfunction programme in Manchester and two-thirds of those screened for the national obesity programme were referred. Vildagliptin: new DPP-4 inhibitor for diabetes Novartis has introduced the DPP-4 inhibitor vildagliptin for the treatment of type 2 diabetes. Two formulations are available: Galvus (vildagliptin 50mg) is licensed for use with metformin, a sulphonylurea or a thiazolidinedione when these agents do not achieve glycaemic control alone, and Eucreas (vildagliptin 50mg plus metformin 850 or 1000mg) is licensed for patients requiring combined therapy with vildagliptin and metformin. Inhibition of DPP-4 blocks the breakdown of the incretin hormones GIP and GLP-1, reducing fasting plasma glucose and postprandial hyperglycaemia. Vildagliptin is the second DPP-4 inhibitor to be introduced; the first was sitagliptin (Januvia), which has similar licensed indications. The third available drug acting on the incretin system is the incretinmimetic exenatide (Byetta); administered by injection, this is licensed for use with metformin and/or a sulphonylurea and is the only agent in this class to be approved for triple therapy. No comparative trials of these agents have been published. A month's treatment with twice-daily vildagliptin 50mg or either strength of vildagliptin plus metformin costs £31.76. Sitagliptin 100mg once daily costs £33.26. Sinusitis symptoms don't guide treatment The severity and duration of symptoms do not help to identify which patients with sinusitis will be helped by antibiotics, a new meta-analysis suggests (Lancet 2008;371: 908-14). The analysis of patient-level data from nine trials involving a total of 2547 adults showed that the number needed to treat (NNT) to cure one patient with rhinosinusitis was 15. Cure took longer to achieve in older patients and in those reporting symptoms for longer or with more severe symptoms. The authors comment that treatment is not justified given the risk of resistance and adverse effects and cost of antibiotics. Draft guidance from the National Institute for Health and Clinical Excellence (NICE) on the management of respiratory infections states that no antibiotic therapy or a delayed antibiotic prescribing strategy should be negotiated for patients with acute sinusitis. Taking cod liver oil leads to fewer NSAIDs Cod liver oil could help some patients with rheumatoid arthritis to reduce their NSAID consumption, according to a study from Dundee (Rheumatology online: 24 March 2008; doi: 10.1093/rheumatology/ ken024). A total of 97 patients were randomised to nine months' treatment with cod liver oil 10g per day or placebo. After 12 weeks, patients attempted to reduce or stop their use of NSAIDs. Significantly more of those taking cod liver oil achieved at least a 30 per cent reduction in NSAID use compared with placebo (39 vs 10 per cent). There were no differences in adverse effects or disease activity. Welsh prescriptions up The reduction in the prescription charge in Wales in 2004 was followed by an increase in prescribing of nonsedating antihistamines in wealthier areas, a study suggests (Health Policy online: 5 March 2008; doi:10.1016/j. healthpol.2008.01.006). In the two years preceding the cut, prescriptions for nonsedating antihistamines increased by about 7 per cent; in the two years after the cut, the increase was nearly 14 per cent. By contrast, there was no change in the rate of increase in the south-east of England (4,5 per cent in both periods). The increased growth in prescribing was statistically significant in the five least deprived but not in the five most deprived health boards in Wales. Aspirin linked with reduced asthma risk Low-dose aspirin is associated with a reduced risk of developing asthma, a new analysis of the Women's Health Study has shown (Thorax online: 13 March 2008; doi:10.1136/ thx.2007.091447). The analysis included 37 270 women with no asthma at baseline who were randomised to take placebo or aspirin 100mg every other day. After 10 years, 872 cases of asthma occurred in women taking aspirin and 963 with placebo, a 10 per cent reduction in risk. However, risk was not reduced in obese women. The mechanism by which aspirin may affect the risk of asthma is unknown. The latest evidence is consistent with findings published by the same investigators after analysis of two other large observational studies, the Physicians' Health Study and the Nurses Health Study. Anastrozole bone loss Long-term follow-up of the ATAC (Anastrozole, Tamoxifen, Alone or in Combination) trial has confirmed that adjuvant therapy with anastrozole (Arimidex) is associated with greater loss of bone mineral density (BMD) than tamoxifen in postmenopausal women with invasive primary breast cancer (J Clin Oncol 2008;26: 1051,7). After five years, median BMD was reduced by 6 and 7 per cent in the lumbar spine and hip with anastrozole compared with approximately 3 and 1 per cent respectively for tamoxifen, though no patients developed osteoporosis. Copyright © 2008 Wiley Interface Ltd [source]


Cost-effectiveness analysis of general anaesthesia versus local anaesthesia for carotid surgery (GALA Trial)

BRITISH JOURNAL OF SURGERY (NOW INCLUDES EUROPEAN JOURNAL OF SURGERY), Issue 8 2010
M. Gomes
Background: Health outcomes and costs are both important when deciding whether general (GA) or local (LA) anaesthesia should be used during carotid endarterectomy. The aim of this study was to assess the cost-effectiveness of carotid endarterectomy under LA or GA in patients with symptomatic or asymptomatic carotid stenosis for whom surgery was advised. Methods: Using patient-level data from a large, multinational, randomized controlled trial (GALA Trial) time free from stroke, myocardial infarction or death, and costs incurred were evaluated. The cost-effectiveness outcome was incremental cost per day free from an event, within a time horizon of 30 days. Results: A patient undergoing carotid endarterectomy under LA incurred fewer costs (mean difference £178) and had a slightly longer event-free survival (difference 0·16 days, but the 95 per cent confidence limits around this estimate were wide) compared with a patient who had GA. Existing uncertainty did not have a significant impact on the decision to adopt LA, over a wide range of willingness-to-pay values. Conclusion: If cost-effectiveness was considered in the decision to adopt GA or LA for carotid endarterectomy, given the evidence provided by this study, LA is likely to be the favoured treatment for patients for whom either anaesthetic approach is clinically appropriate. Copyright © 2010 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd. [source]


Economic analysis of VenUS I, a randomized trial of two bandages for treating venous leg ulcers

BRITISH JOURNAL OF SURGERY (NOW INCLUDES EUROPEAN JOURNAL OF SURGERY), Issue 10 2004
C. P. Iglesias
Background: The study investigated the cost-effectiveness of four-layer and short-stretch compression bandages for treating venous leg ulcers. Methods: Cost-effectiveness and cost-utility analyses were performed using patient-level data collected alongside the VenUS I leg ulcer study. The perspective for the economic analysis was that of the UK National Health Service (NHS) and Personal Social Service. The time horizon for the analysis was 1 year after recruitment. Health benefit was measured as differences in ulcer-free days and quality-adjusted life years (QALYs). Results: The mean healing time for ulcers treated with four-layer bandages was 10·9 (95 per cent confidence interval (c.i.) ,6·8 to 29·1) days less than that for ulcers treated with short-stretch bandages. Mean average difference in QALYs between compression systems was ,0·02 (95 per cent c.i. ,0·08 to 0·04). The four-layer bandage cost a mean of £227·32 (95 per cent c.i. £16·53 to £448 ·30) less per patient per year than the short-stretch bandage. Conclusion: On average, four-layer bandaging was associated with greater health benefits and lower costs than short-stretch bandaging. Copyright © 2004 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd. [source]


A Cost-effectiveness Analysis of Propofol versus Midazolam for Procedural Sedation in the Emergency Department

ACADEMIC EMERGENCY MEDICINE, Issue 1 2008
Corinne Michèle Hohl MD
Abstract Objectives:, To determine the incremental cost-effectiveness of using propofol versus midazolam for procedural sedation (PS) in adults in the emergency department (ED). Methods:, The authors conducted a cost-effectiveness analysis from the perspective of the health care provider. The primary outcome was the incremental cost (or savings) to achieve one additional successful sedation with propofol compared to midazolam. A decision model was developed in which the clinical effectiveness and cost of a PS strategy using either agent was estimated. The authors derived estimates of clinical effectiveness and risk of adverse events (AEs) from a systematic review. The cost of each clinical outcome was determined by incorporating the baseline cost of the ED visit, the cost of the drug, the cost of labor of physicians and nurses, the cost and probability of an AE, and the cost and probability of a PS failure. A standard meta-analytic technique was used to calculate the weighted mean difference in recovery times and obtain mean drug doses from patient-level data from a randomized controlled trial. Probabilistic sensitivity analyses were conducted to examine the uncertainty around the estimated incremental cost-effectiveness ratio using Monte Carlo simulation. Results:, Choosing a sedation strategy with propofol resulted in average savings of $17.33 (95% confidence interval [CI] = $24.13 to $10.44) per sedation performed. This resulted in an incremental cost-effectiveness ratio of ,$597.03 (95% credibility interval ,$6,434.03 to $6,113.57) indicating savings of $597.03 per additional successful sedation performed with propofol. This result was driven by shorter recovery times and was robust to all sensitivity analyses performed. Conclusions:, These results indicate that using propofol for PS in the ED is a cost-saving strategy. [source]