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Econometrics

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https://www.readbyqxmd.com/read/28214425/favorable-cardiovascular-risk-factor-profile-is-associated-with-lower-healthcare-expenditure-and-resource-utilization-among-adults-with-diabetes-mellitus-free-of-established-cardiovascular-disease-2012-medical-expenditure-panel-survey-meps
#1
David I Feldman, Javier Valero-Elizondo, Joseph A Salami, Jamal S Rana, Oluseye Ogunmoroti, Chukwuemeka U Osondu, Erica S Spatz, Salim S Virani, Ron Blankstein, Michael J Blaha, Emir Veledar, Khurram Nasir
BACKGROUND AND AIMS: Given the prevalence and economic burden of diabetes mellitus (DM), we studied the impact of a favorable cardiovascular risk factor (CRF) profile on healthcare expenditures and resource utilization among individuals without cardiovascular disease (CVD), by DM status. METHODS: 25,317 participants were categorized into 3 mutually-exclusive strata: "Poor", "Average" and "Optimal" CRF profiles (≥4, 2-3, 0-1 CRF, respectively). Two-part econometric models were utilized to study cost data...
February 9, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28183354/protocol-for-the-analysis-of-a-natural-experiment-on-the-impact-of-the-affordable-care-act-on-diabetes-care-in-community-health-centers
#2
Nathalie Huguet, Heather Angier, Miguel Marino, K John McConnell, Megan J Hoopes, Jean P O'Malley, Lewis A Raynor, Sonja Likumahuwa-Ackman, Heather Holderness, Jennifer E DeVoe
BACKGROUND: It is hypothesized that Affordable Care Act (ACA) Medicaid expansions could substantially improve access to health insurance and healthcare services for patients at risk for diabetes mellitus (DM), with pre-DM, or already diagnosed with DM. The ACA called for every state to expand Medicaid coverage by 2014. In a 2012 legal challenge, the US Supreme Court ruled that states were not required to implement Medicaid expansions. This 'natural experiment' presents a unique opportunity to learn whether and to what extent Medicaid expansion can affect healthcare access and services for patients with DM risk, pre-DM, or DM...
February 10, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28166729/is-it-still-worthwhile-to-perform-quarterly-cd4-t-lymphocyte-cell-counts-on-hiv-1-infected-stable-patients
#3
Antonio Di Biagio, Marta Ameri, Davide Sirello, Giovanni Cenderello, Enrico Di Bella, Lucia Taramasso, Barbara Giannini, Mauro Giacomini, Claudio Viscoli, Giovanni Cassola, Marcello Montefiori
BACKGROUND: In the last 20 years routine T CD4+ lymphocyte (CD4+) cell count has proved to be a key factor to determine the stage of HIV infection and start or discontinue of prophylaxis for opportunistic infections. However, several studies recently showed that in stable patients on cART a quarterly CD4+ cell count monitoring results in limited (or null) clinical relevance. The research is intended to investigate whether performing quarterly CD4+ cell counts in stable HIV-1 patients is still recommendable and to provide a forecast of the cost saving that could be achieved by reducing CD4+ monitoring in such a category of patients...
February 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28163360/ethiopian-wheat-yield-and-yield-gap-estimation-a-spatially-explicit-small-area-integrated-data-approach
#4
Michael L Mann, James M Warner
Despite the routine collection of annual agricultural surveys and significant advances in GIS and remote sensing products, little econometric research has integrated these data sources in estimating developing nations' agricultural yields. In this paper, we explore the determinants of wheat output per hectare in Ethiopia during the 2011-2013 principal Meher crop seasons at the kebele administrative area. Using a panel data approach, combining national agricultural field surveys with relevant GIS and remote sensing products, the model explains nearly 40% of the total variation in wheat output per hectare across the country...
February 1, 2017: Field Crops Research
https://www.readbyqxmd.com/read/28162127/impact-of-two-policy-interventions-on-dietary-diversity-in-ecuador
#5
Juan Ponce, Jesus Ramos-Martin
OBJECTIVE: To differentiate the effects of food vouchers and training in health and nutrition on consumption and dietary diversity in Ecuador by using an experimental design. DESIGN: Interventions involved enrolling three groups of approximately 200 randomly selected households per group in three provinces in Ecuador. Power estimates and sample size were computed using the Optimal Design software, with a power of 80 %, at 5 % of significance and with a minimum detectable effect of 0·25 (sd)...
February 6, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28161670/addressing-care-seeking-as-well-as-insurance-seeking-selection-biases-in-estimating-the-impact-of-health-insurance-on-out-of-pocket-expenditure
#6
Shehzad Ali, Richard Cookson, Mark Dusheiko
Health Insurance (HI) programmes in low-income countries aim to reduce the burden of out-of-pocket (OOP) health care expenditure. However, if the decisions to purchase insurance and to seek care when ill are correlated with the expected health care expenditure, the use of naïve regression models may produce biased estimates of the impact of insurance membership on OOP expenditure. Whilst many studies in the literature have accounted for the endogeneity of the insurance decision, the potential selection bias due to the care-seeking decision has not been taken into account...
November 4, 2016: Social Science & Medicine
https://www.readbyqxmd.com/read/28148292/economies-of-scale-and-scope-in-publicly-funded-biomedical-and-health-research-evidence-from-the-literature
#7
REVIEW
Karla Hernandez-Villafuerte, Jon Sussex, Enora Robin, Sue Guthrie, Steve Wooding
BACKGROUND: Publicly funded biomedical and health research is expected to achieve the best return possible for taxpayers and for society generally. It is therefore important to know whether such research is more productive if concentrated into a small number of 'research groups' or dispersed across many. METHODS: We undertook a systematic rapid evidence assessment focused on the research question: do economies of scale and scope exist in biomedical and health research? In other words, is that research more productive per unit of cost if more of it, or a wider variety of it, is done in one location? We reviewed English language literature without date restriction to the end of 2014...
February 2, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28139137/factors-influencing-nutritional-adequacy-among-rural-households-in-nigeria-how-does-dietary-diversity-stand-among-influencers
#8
D Akerele, R A Sanusi, O A Fadare, O F Ashaolu
This study examined the influence of food consumption diversity on adequate intakes of food calories, proteins and micronutrients among households in rural Nigeria within the framework of panel data econometrics using a nationally representative data. We found that substantial proportion of households suffered deficiency of calories, proteins and certain micronutrients; with higher percentage of sufferer households occurring in the post-planting season. The different measures of dietary diversity (constructed and used for analysis) consistently indicate significant and positive influence of dietary diversity on the likelihood of adequate consumption of food nutrients...
January 31, 2017: Ecology of Food and Nutrition
https://www.readbyqxmd.com/read/28128775/clinical-judgment-research-on-economic-topics-role-of-congruence-of-tasks-in-clinical-practice
#9
Christine C Huttin
This paper discusses what can ensure the performance of judgment studies with an information design that integrates economics of medical systems, in the context of digitalization of healthcare. It is part of a series of 5 methodological papers on statistical procedures and problems to implement judgment research designs and decision models, especially to address cost of care, and ways to measure conversation on cost of care between physicians and patients, with unstructured data such as economic narratives to complement billing and financial information (e...
January 20, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28124312/is-health-care-a-necessary-or-luxury-product-for-asian-countries-an-answer-using-panel-approach
#10
S M Abdullah, Salina Siddiqua, Rumana Huque
A number of studies have estimated the income elasticity of health care expenditure to identify whether health care is a necessary or luxury product. However, the issue has received less attention in developing countries, especially in Asian economies. The current study for the first time has used the panel data covering 36 Asian countries for the period 1995-2013 for revealing the nature of health care as a product. Along with conventional econometric techniques we have addressed the issue of cross section dependence and used Westerlund (2007) panel cointegration test which is robust against cross section dependence and heterogeneity for detecting the presence of panel cointegration...
December 2017: Health Economics Review
https://www.readbyqxmd.com/read/28092000/direct-and-indirect-effects-of-wastewater-use-and-herd-environment-on-the-occurrence-of-animal-diseases-and-animal-health-in-pakistan
#11
Ehsan Elahi, Liqin Zhang, Muhammad Abid, Muhammad Tariq Javed, Han Xinru
The use of wastewater for rearing domestic animals is a common phenomenon in most of the developing countries like Pakistan that face a serious shortage of freshwater resources. However, most of the literature has only focused on the indirect effects of wastewater use on animal health or productivity, and literature on the direct effects of wastewater use is rare. Therefore, this study aims to investigate the direct and indirect effects of wastewater usage on the prevalence of animal diseases and animal health in Pakistan...
January 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28001199/-demand-for-cigarettes-and-tax-increases-in-el-salvador
#12
Alejandro Ramos-Carbajales, Martín González-Rozada, Hugo Vallarino
Objective: Analyze short- and long-term elasticities of demand for cigarettes in El Salvador as a tool for supporting recommendations on tax increases to reduce prevalence and consumption through price increases. Methods: Demand for cigarettes in El Salvador was analyzed through an econometric time-series model using a database from El Salvador's General Directorate of Internal Taxes (DGII) and the General Directorate of Statistics and Census (DIGESTYC). The analysis period was quarterly: 2000Q1-2012Q4...
October 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28001198/-cigarette-taxes-and-demand-in-colombia
#13
Norman Maldonado, Blanca Llorente, Javier Deaza
Objective: Estimate price and income elasticities of aggregate demand for cigarettes in Colombia, by controlling for structural market changes since the late 1990s, to identify policy opportunities for taxes that could improve public health and increase tax revenues. Methods: Measurement of aggregate demand for cigarettes using gross income reported on value-added tax returns submitted to Colombia's National Tax and Customs Office (DIAN is the acronym in Spanish) by the tobacco product manufacturing industry, subtracting exports...
October 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/27994307/quantile-regression-models-for-current-status-data
#14
Fang-Shu Ou, Donglin Zeng, Jianwen Cai
Current status data arise frequently in demography, epidemiology, and econometrics where the exact failure time cannot be determined but is only known to have occurred before or after a known observation time. We propose a quantile regression model to analyze current status data, because it does not require distributional assumptions and the coefficients can be interpreted as direct regression effects on the distribution of failure time in the original time scale. Our model assumes that the conditional quantile of failure time is a linear function of covariates...
November 2016: Journal of Statistical Planning and Inference
https://www.readbyqxmd.com/read/27992866/lost-productivity-in-stroke-survivors-an-econometrics-analysis
#15
Manav V Vyas, Daniel G Hackam, Frank L Silver, Audrey Laporte, Moira K Kapral
BACKGROUND: Stroke leads to a substantial societal economic burden. Loss of productivity among stroke survivors is a significant contributor to the indirect costs associated with stroke. We aimed to characterize productivity and factors associated with employability in stroke survivors. METHODS: We used the Canadian Community Health Survey 2011-2012 to identify stroke survivors and employment status. We used multivariable logistic models to determine the impact of stroke on employment and on factors associated with employability, and used Heckman models to estimate the effect of stroke on productivity (number of hours worked/week and hourly wages)...
2016: Neuroepidemiology
https://www.readbyqxmd.com/read/27981193/acute-stress-does-not-affect-risky-monetary-decision-making
#16
Peter Sokol-Hessner, Candace M Raio, Sarah P Gottesman, Sandra F Lackovic, Elizabeth A Phelps
The ubiquitous and intense nature of stress responses necessitate that we understand how they affect decision-making. Despite a number of studies examining risky decision-making under stress, it is as yet unclear whether and in what way stress alters the underlying processes that shape our choices. This is in part because previous studies have not separated and quantified dissociable valuation and decision-making processes that can affect choices of risky options, including risk attitudes, loss aversion, and choice consistency, among others...
December 2016: Neurobiology of Stress
https://www.readbyqxmd.com/read/27971896/the-utilization-of-health-services-by-the-older-europeans-an-econometric-analysis
#17
A Srakar, R Hren, V Prevolnik Rupel
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27965547/regular-cycles-of-forward-and-backward-signal-propagation-in-prefrontal-cortex-and-in-consciousness
#18
Paul J Werbos, Joshua J J Davis
This paper addresses two fundamental questions: (1) Is it possible to develop mathematical neural network models which can explain and replicate the way in which higher-order capabilities like intelligence, consciousness, optimization, and prediction emerge from the process of learning (Werbos, 1994, 2016a; National Science Foundation, 2008)? and (2) How can we use and test such models in a practical way, to track, to analyze and to model high-frequency (≥ 500 hz) many-channel data from recording the brain, just as econometrics sometimes uses models grounded in the theory of efficient markets to track real-world time-series data (Werbos, 1990)? This paper first reviews some of the prior work addressing question (1), and then reports new work performed in MATLAB analyzing spike-sorted and burst-sorted data on the prefrontal cortex from the Buzsaki lab (Fujisawa et al...
2016: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/27942562/survey-data-on-factors-influencing-participation-in-towel-reuse-programs
#19
Efthalia Dimara, Emmanouela Manganari, Dimitris Skuras
This data article provides a data description on all subsamples related to the research article entitled "Don't change my towels please: Factors influencing participation in towel reuse programs" (E. Dimara, E. Manganari, D. Skuras, 2017) [1]. The dataset was compiled from a field questionnaire survey of 1304 tourists in Greece that captured key demographic, behavioral and psychographic characteristics. The dataset is split into distinct sub-samples that differ depending on whether tourists chose to respond to certain parts of the questionnaire or not...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27936157/correction-the-hog-cycle-of-law-professors-an-econometric-time-series-analysis-of-the-entry-level-job-market-in-legal-academia
#20
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0159815.].
2016: PloS One
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