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https://www.readbyqxmd.com/read/29746619/voluntary-community-human-immunodeficiency-virus-testing-linkage-and-retention-in-care-interventions-in-kenya-modeling-the-clinical-impact-and-cost-effectiveness
#1
Liem B Luong Nguyen, Yazdan Yazdanpanah, David Maman, Sitima Wanjala, Alexandra Vandenbulcke, Jianthi Price, Robert A Parker, William Hennequin, Pierre Mendiharat, Kenneth A Freedberg
Background: In southwest Kenya, the prevalence of human immunodeficiency virus (HIV) infection is about 25%. Médecins Sans Frontières has implemented a voluntary community testing (VCT) program, with linkage to care and retention interventions, to achieve the Joint United Nations Program on HIV and AIDS (UNAIDS) 90-90-90 targets by 2017. We assessed the effectiveness and cost-effectiveness of these interventions. Methods: We developed a time-discrete, dynamic microsimulation model to project HIV incidence over time in the adult population in Kenya...
May 8, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29695234/cost-effectiveness-and-budget-impact-analyses-of-a-colorectal-cancer-screening-programme-in-a-high-adenoma-prevalence-scenario-using-miscan-colon-microsimulation-model
#2
Arantzazu Arrospide, Isabel Idigoras, Javier Mar, Harry de Koning, Miriam van der Meulen, Myriam Soto-Gordoa, Jose Miguel Martinez-Llorente, Isabel Portillo, Eunate Arana-Arri, Oliver Ibarrondo, Iris Lansdorp-Vogelaar
BACKGROUND: The Basque Colorectal Cancer Screening Programme began in 2009 and the implementation has been complete since 2013. Faecal immunological testing was used for screening in individuals between 50 and 69 years old. Colorectal Cancer in Basque country is characterized by unusual epidemiological features given that Colorectal Cancer incidence is similar to other European countries while adenoma prevalence is higher. The object of our study was to economically evaluate the programme via cost-effectiveness and budget impact analyses with microsimulation models...
April 25, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29687268/cost-effectiveness-of-enhancing-a-quit-and-win-smoking-cessation-program-for-college-students
#3
Jonah Popp, John A Nyman, Xianghua Luo, Jill Bengtson, Katherine Lust, Lawrence An, Jasjit S Ahluwalia, Janet L Thomas
OBJECTIVES: We conducted a cost-effectiveness analysis and model-based cost-utility and cost-benefit analysis of increased dosage (3 vs. 1 consecutive contests) and enhanced content (supplemental smoking-cessation counseling) of the Quit-and-Win contest using data from a randomized control trial enrolling college students in the US. METHODS: For the cost-utility and cost-benefit analyses, we used a microsimulation model of the life course of current and former smokers to translate the distribution of the duration of continuous abstinence among each treatment arm's participants observed at the end of the trial (N = 1217) into expected quality-adjusted life-years (QALYs) and costs and an incremental net monetary benefit (INMB)...
April 23, 2018: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/29664345/a-micro-level-data-calibrated-agent-based-model-the-synergy-between-microsimulation-and-agent-based-modeling
#4
Karandeep Singh, Chang-Won Ahn, Euihyun Paik, Jang Won Bae, Chun-Hee Lee
Artificial life (ALife) examines systems related to natural life, its processes, and its evolution, using simulations with computer models, robotics, and biochemistry. In this article, we focus on the computer modeling, or "soft," aspects of ALife and prepare a framework for scientists and modelers to be able to support such experiments. The framework is designed and built to be a parallel as well as distributed agent-based modeling environment, and does not require end users to have expertise in parallel or distributed computing...
April 17, 2018: Artificial Life
https://www.readbyqxmd.com/read/29651777/cost-effectiveness-of-genome-and-exome-sequencing-in-children-diagnosed-with-autism-spectrum-disorder
#5
Tracy Yuen, Melissa T Carter, Peter Szatmari, Wendy J Ungar
BACKGROUND: Genome (GS) and exome sequencing (ES) could potentially identify pathogenic variants with greater sensitivity than chromosomal microarray (CMA) in autism spectrum disorder (ASD) but are costlier and result interpretation can be uncertain. Study objective was to compare the costs and outcomes of four genetic testing strategies in children with ASD. METHODS: A microsimulation model estimated the outcomes and costs (in societal and public payer perspectives in Ontario, Canada) of four genetic testing strategies: CMA for all, CMA for all followed by ES for those with negative CMA and syndromic features (CMA+ES), ES or GS for all...
April 12, 2018: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/29611342/the-economic-impacts-of-using-adalimumab-humira-%C3%A2-for-reducing-pain-in-people-with-ankylosing-spondylitis-a-microsimulation-study-for-australia
#6
Deborah Schofield, Rupendra Shrestha, Michelle Cunich
AIM: The onset and progression of ankylosing spondylitis (AS) usually occurs during the life stage when individuals are more likely to be working and receiving an income, but little is known about the effects of interventions that reduce pain and improve the economic circumstances of patients out of the labour force due to AS. This study evaluates the economic benefits of pain reduction among people aged 19-64 with AS using adalimumab (Humira® ) from the patient and governmental perspectives...
April 3, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29603882/the-cost-effectiveness-and-budgetary-impact-of-a-dolutegravir-based-regimen-as-first-line-treatment-of-hiv-infection-in-india
#7
Amy Zheng, Nagalingeswaran Kumarasamy, Mingshu Huang, A David Paltiel, Kenneth H Mayer, Bharat B Rewari, Rochelle P Walensky, Kenneth A Freedberg
INTRODUCTION: Dolutegravir (DTG)-based antiretroviral therapy (ART) is recommended for first-line HIV treatment in the US and Europe. Efavirenz (EFV)-based regimens remain the standard of care (SOC) in India. We examined the clinical and economic impact of DTG-based first-line ART in the setting of India's recent guidelines change to treating all patients with HIV infection regardless of CD4 count. METHODS: We used a microsimulation of HIV disease, the Cost-Effectiveness of Preventing AIDS Complications (CEPAC)-International model, to project outcomes in ART-naive patients under two strategies: (1) SOC: EFV/tenofovir disoproxil fumarate (TDF)/lamivudine (3TC); and (2) DTG: DTG + TDF/3TC...
March 2018: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/29595836/tourism-contribution-to-poverty-alleviation-in-kenya-a-dynamic-computable-general-equilibrium-analysis
#8
Eric Tchouamou Njoya, Neelu Seetaram
The aim of this article is to investigate the claim that tourism development can be the engine for poverty reduction in Kenya using a dynamic, microsimulation computable general equilibrium model. The article improves on the common practice in the literature by using the more comprehensive Foster-Greer-Thorbecke (FGT) index to measure poverty instead of headcount ratios only. Simulations results from previous studies confirm that expansion of the tourism industry will benefit different sectors unevenly and will only marginally improve poverty headcount...
April 2018: Journal of travel research
https://www.readbyqxmd.com/read/29587047/microsimulation-modeling-for-health-decision-sciences-using-r-a-tutorial
#9
Eline M Krijkamp, Fernando Alarid-Escudero, Eva A Enns, Hawre J Jalal, M G Myriam Hunink, Petros Pechlivanoglou
Microsimulation models are becoming increasingly common in the field of decision modeling for health. Because microsimulation models are computationally more demanding than traditional Markov cohort models, the use of computer programming languages in their development has become more common. R is a programming language that has gained recognition within the field of decision modeling. It has the capacity to perform microsimulation models more efficiently than software commonly used for decision modeling, incorporate statistical analyses within decision models, and produce more transparent models and reproducible results...
April 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29574440/projecting-the-effects-of-tobacco-control-policies-in-the-usa-through-microsimulation-a-study-protocol
#10
Jamie Tam, David T Levy, Jihyoun Jeon, John Clarke, Scott Gilkeson, Tim Hall, Eric J Feuer, Theodore R Holford, Rafael Meza
INTRODUCTION: Smoking remains the leading cause of preventable death in the USA but can be reduced through policy interventions. Computational models of smoking can provide estimates of the projected impact of tobacco control policies and can be used to inform public health decision making. We outline a protocol for simulating the effects of tobacco policies on population health outcomes. METHODS AND ANALYSIS: We extend the Smoking History Generator (SHG), a microsimulation model based on data from the National Health Interview Surveys, to evaluate the effects of tobacco control policies on projections of smoking prevalence and mortality in the USA...
March 23, 2018: BMJ Open
https://www.readbyqxmd.com/read/29554470/the-university-of-wisconsin-breast-cancer-epidemiology-simulation-model-an-update
#11
Oguzhan Alagoz, Mehmet Ali Ergun, Mucahit Cevik, Brian L Sprague, Dennis G Fryback, Ronald E Gangnon, John M Hampton, Natasha K Stout, Amy Trentham-Dietz
The University of Wisconsin Breast Cancer Epidemiology Simulation Model (UWBCS), also referred to as Model W, is a discrete-event microsimulation model that uses a systems engineering approach to replicate breast cancer epidemiology in the US over time. This population-based model simulates the lifetimes of individual women through 4 main model components: breast cancer natural history, detection, treatment, and mortality. A key feature of the UWBCS is that, in addition to specifying a population distribution in tumor growth rates, the model allows for heterogeneity in tumor behavior, with some tumors having limited malignant potential (i...
April 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29554469/simulating-the-impact-of-risk-based-screening-and-treatment-on-breast-cancer-outcomes-with-miscan-fadia
#12
Jeroen J van den Broek, Nicolien T van Ravesteyn, Eveline A Heijnsdijk, Harry J de Koning
The MISCAN-Fadia microsimulation model uses continuous tumor growth to simulate the natural history of breast cancer and has been used extensively to estimate the impact of screening and adjuvant treatment on breast cancer incidence and mortality trends. The model simulates individual life histories from birth to death, with and without breast cancer, in the presence and in the absence of screening and treatment. Life histories are simulated according to discrete events such as birth, tumor inception, the tumor's clinical diagnosis diameter in the absence of screening, and death from breast cancer or death from other causes...
April 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29554462/structure-function-and-applications-of-the-georgetown-einstein-ge-breast-cancer-simulation-model
#13
Clyde B Schechter, Aimee M Near, Jinani Jayasekera, Young Chandler, Jeanne S Mandelblatt
BACKGROUND: The Georgetown University-Albert Einstein College of Medicine breast cancer simulation model (Model GE) has evolved over time in structure and function to reflect advances in knowledge about breast cancer, improvements in early detection and treatment technology, and progress in computing resources. This article describes the model and provides examples of model applications. METHODS: The model is a discrete events microsimulation of single-life histories of women from multiple birth cohorts...
April 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29525333/innovation-in-heart-failure-treatment-life-expectancy-disability-and-health-disparities
#14
Karen E Van Nuys, Zhiwen Xie, Bryan Tysinger, Mark A Hlatky, Dana P Goldman
OBJECTIVES: The goal of this study was to illustrate the potential benefit of effective congestive heart failure (CHF) treatment in terms of improved health, greater social value, and reduced health disparities between black and white subpopulations. BACKGROUND: CHF affects 5.7 million Americans, costing $32 billion annually in treatment expenditures and lost productivity. CHF also contributes to health disparities between black and white Americans: black subjects develop CHF at a younger age and are more likely to be hospitalized and die of this disease...
May 2018: JACC. Heart Failure
https://www.readbyqxmd.com/read/29519780/robotic-versus-open-renal-transplantation-in-obese-patients-protocol-for-a-cost-benefit-markov-model-analysis
#15
Michele Molinari, Chethan Puttarajappa, Martin Wijkstrom, Armando Ganoza, Roberto Lopez, Amit Tevar
BACKGROUND: Recent studies have reported a significant decrease in wound problems and hospital stay in obese patients undergoing renal transplantation by robotic-assisted minimally invasive techniques with no difference in graft function. OBJECTIVE: Due to the lack of cost-benefit studies on the use of robotic-assisted renal transplantation versus open surgical procedure, the primary aim of our study is to develop a Markov model to analyze the cost-benefit of robotic surgery versus open traditional surgery in obese patients in need of a renal transplant...
March 8, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29509767/the-current-and-potential-health-benefits-of-the-national-health-service-health-check-cardiovascular-disease-prevention-programme-in-england-a-microsimulation-study
#16
Oliver T Mytton, Christopher Jackson, Arno Steinacher, Anna Goodman, Claudia Langenberg, Simon Griffin, Nick Wareham, James Woodcock
BACKGROUND: The National Health Service (NHS) Health Check programme was introduced in 2009 in England to systematically assess all adults in midlife for cardiovascular disease risk factors. However, its current benefit and impact on health inequalities are unknown. It is also unclear whether feasible changes in how it is delivered could result in increased benefits. It is one of the first such programmes in the world. We sought to estimate the health benefits and effect on inequalities of the current NHS Health Check programme and the impact of making feasible changes to its implementation...
March 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29486993/modeling-treatment-outcomes-for-patients-with-advanced-ovarian-cancer-projected-benefits-of-a-test-to-optimize-treatment-selection
#17
Davis T Weaver, Tiana J Raphel, Alexander Melamed, J Alejandro Rauh-Hain, John O Schorge, Amy B Knudsen, Pari V Pandharipande
OBJECTIVE: For patients with advanced stage epithelial ovarian cancer (EOC), substantial emphasis has been placed on diagnostic tests that can discern which of two treatment options - primary cytoreductive surgery (PCS) or neoadjuvant chemotherapy followed by interval cytoreductive surgery (NACT+ICS) - optimizes patient-level outcomes. Our goal was to project potential life expectancy (LE) gains that could be achieved by use of such a test. METHODS: We developed a microsimulation model to project LE for patients with stage IIIC EOC...
May 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29485322/colorectal-cancer-cost-effectiveness-of-colonoscopy-versus-ct-colonography-screening-with-participation-rates-and-costs
#18
Miriam P van der Meulen, Iris Lansdorp-Vogelaar, S Lucas Goede, Ernst J Kuipers, Evelien Dekker, Jaap Stoker, Marjolein van Ballegooijen
Purpose To compare the cost-effectiveness of computed tomographic (CT) colonography and colonoscopy screening by using data on unit costs and participation rates from a randomized controlled screening trial in a dedicated screening setting. Materials and Methods Observed participation rates and screening costs from the Colonoscopy or Colonography for Screening, or COCOS, trial were used in a microsimulation model to estimate costs and quality-adjusted life-years (QALYs) gained with colonoscopy and CT colonography screening...
February 27, 2018: Radiology
https://www.readbyqxmd.com/read/29477181/a-computer-simulation-to-investigate-the-association-between-gene-based-gifting-and-pair-bonding-in-early-hominins
#19
Ovi Chris Rouly
This article describes simulation research based on the Hamiltonian theory of gene-based altruism. It investigates the origin of semipermanent breeding bonds during hominin evolution. The research framework is based on a biologically detailed, ecologically situated, multi-agent microsimulation of emergent sociality. The research question tested is whether semipermanent breeding bonds (an emergent homoplastic social construct) might emerge among primate-like agents as the consequence of a mutation capable of supporting involuntary prosocial behavior...
March 2018: Journal of Human Evolution
https://www.readbyqxmd.com/read/29476444/dose-titration-of-pregabalin-in-patients-with-painful-diabetic-peripheral-neuropathy-simulation-based-on-observational-study-patients-enriched-with-data-from-randomized-studies
#20
Joe Alexander, Roger A Edwards, Luigi Manca, Roberto Grugni, Gianluca Bonfanti, Birol Emir, Edward Whalen, Stephen Watt, Bruce Parsons
INTRODUCTION: Achieving a therapeutic response to pregabalin in patients with painful diabetic peripheral neuropathy (pDPN) requires adequate upward dose titration. Our goal was to identify relationships between titration and response to pregabalin in patients with pDPN. METHODS: Data were integrated from nine randomized, placebo-controlled clinical trials as well as one 6-week open-label observational study conducted by 5808 physicians (2642 patients with pDPN) in standard outpatient settings in Germany...
March 2018: Advances in Therapy
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