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Model decision analysis

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https://www.readbyqxmd.com/read/28738456/-cost-effectiveness-of-community-based-treatment-of-chronic-hepatitis-b-in-china
#1
S X Zhang, P C Yang, Y L Cai, Y Lin, Y H Zou
Objective: Since eliminating hepatitis B in China would need considerable public health resources, the economics problem of the strategy of community-based antiviral treatment for chronic hepatitis B (CHB) has become an important issue. The cost-effectiveness and affordability of the strategy were evaluated in this study. Methods: According to the advocacy on eliminating hepatitis B by WHO and the comprehensive protocol of community based prevention of major infectious diseases and the guideline for CHB prevention and treatment in China, the decision analytic Markov model was constructed with the parameters from national surveys or Meta-analysis...
July 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28738455/-cost-effectiveness-and-affordability-of-strategy-for-preventing-mother-to-child-transmission-of-hepatitis-b-in-china
#2
Y Lin, S X Zhang, P C Yang, Y L Cai, Y H Zou
Objective: To evaluate the cost effectiveness of nationwide prevention of mother to child transmission (PMTCT) strategy for hepatitis B, and estimate the willing to pay and budget impacts on the PMTCT. Methods: The decision analytic Markov model for the PMTCT was constructed and a birth cohort of Chinese infants born in 2013 was used to calculate the cost-effectiveness of the PMTCT among them compared with those receiving no intervention. The parameters in the model were obtained from literatures of national surveys or Meta-analysis...
July 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28737991/lowering-cost-share-may-improve-rates-of-home-glucose-monitoring-among-patients-with-diabetes-using-insulin
#3
Yiqiong Xie, Abiy Agiro, Kevin Bowman, Andrea DeVries
BACKGROUND: Not much is known about the extent to which lower cost share for blood glucose strips is associated with persistent filling. OBJECTIVE: To evaluate the relationship between cost sharing for blood glucose testing strips and continued use of testing strips. METHODS: This is a retrospective observational study using medical and pharmacy claims data integrated with laboratory hemoglobin A1c (A1c) values for patients using insulin and blood glucose testing strips...
August 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28735766/risk-factor-analysis-for-predicting-vertebral-body-re-collapse-after-posterior-instrumented-fusion-in-thoracolumbar-burst-fracture
#4
Hae-Dong Jang, Jae Chul Lee, Jae-Wan Soh, Sung-Woo Choi, Hyeung-Kyu Cho, Byung-Joon Shin
BACKGROUND CONTEXT: In the posterior instrumented fusion surgery for thoracolumbar (T-L) burst fracture, early postoperative re-collapse of well-reduced vertebral body fracture could induces critical complications such as correction loss, post-traumatic kyphosis, metal failure, often lead to revision surgery. Furthermore, re-collapse is quite difficult to predict because of the variety of risk factors and no widely accepted accurate prediction systems existed. Although load sharing classification (LSC) has been known to help to decide the need for additional anterior column support, this radiographic scoring system has several critical limitations...
July 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28735765/incidental-durotomy-during-total-en-bloc-spondylectomy
#5
Noriaki Yokogawa, Hideki Murakami, Satoru Demura, Satoshi Kato, Katsuhito Yoshioka, Hiroyuki Tsuchiya
BACKGROUND CONTEXT: The incidence of incidental durotomy (ID) during total en bloc spondylectomy (TES) tends to be higher than that during other spinal surgeries because of the peculiarities of TES, including its highly invasive nature, epidural tumor extension, and use in patients who often have complicated medical backgrounds. However, there have been no detailed reports on ID associated with TES. PURPOSE: The study aimed to investigate ID during TES in detail...
July 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28735703/ovarian-mass-differentiating-benign-from-malignant-the-value-of-the-international-ovarian-tumor-analysis-iota-ultrasound-rules
#6
Jacques S Abramowicz, Dirk Timmerman
Ovarian cancer, the fifth most common cause of cancer death among women, has the highest mortality rate of all gynecologic cancers. General survival rate is under 50% but can reach 90% if disease is detected early. Ultrasound is presently the best modality to differentiate between benign and malignant status. The patient with a malignant mass should be referred to an oncology surgeon since results have been shown to be superior to treatment by a specialist. Several ultrasound-based scoring systems exist for assessing the risk of an ovarian tumor to be malignant...
July 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28735563/a-gaussian-approximation-approach-for-value-of-information-analysis
#7
Hawre Jalal, Fernando Alarid-Escudero
Most decisions are associated with uncertainty. Value of information (VOI) analysis quantifies the opportunity loss associated with choosing a suboptimal intervention based on current imperfect information. VOI can inform the value of collecting additional information, resource allocation, research prioritization, and future research designs. However, in practice, VOI remains underused due to many conceptual and computational challenges associated with its application. Expected value of sample information (EVSI) is rooted in Bayesian statistical decision theory and measures the value of information from a finite sample...
July 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28735447/cost-benefit-analysis-of-two-child-abuse-and-neglect-primary-prevention-programs-for-us-states
#8
Cora Peterson, Curtis Florence, Robert Thomas, Joanne Klevens
We assessed the US state-level budget and societal impact of implementing two child abuse and neglect (CAN) primary prevention programs. CAN cost estimates and data from two prevention programs (Child-Parent Centers and Nurse-Family Partnership) were combined with current population, cost, and CAN incidence data by US state. A cost-benefit mathematical model for each program by US state compared program costs with the future monetary value of benefits from reduced CAN. The models used a lifetime time horizon from government payer and societal perspectives...
July 22, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28735178/development-of-a-real-time-prediction-model-of-driver-behavior-at-intersections-using-kinematic-time-series-data
#9
Yaoyuan V Tan, Michael R Elliott, Carol A C Flannagan
As connected autonomous vehicles (CAVs) enter the fleet, there will be a long period when these vehicles will have to interact with human drivers. One of the challenges for CAVs is that human drivers do not communicate their decisions well. Fortunately, the kinematic behavior of a human-driven vehicle may be a good predictor of driver intent within a short time frame. We analyzed the kinematic time series data (e.g., speed) for a set of drivers making left turns at intersections to predict whether the driver would stop before executing the turn...
July 20, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28735121/survival-patterns-of-5750-srs-treated-brain-metastasis-patients-as-a-function-of-the-number-of-lesions
#10
Mir Amaan Ali, Brian R Hirshman, Bayard Wilson, Kate T Carroll, James A Proudfoot, Steven J Goetsch, John F Alksne, Kenneth Ott, Hitoshi Aiyama, Osamu Nagano, Bob S Carter, Gerald Fogarty, Angela Hong, Toru Serizawa, Masaaki Yamamoto, Clark C Chen
BACKGROUND: The number of brain metastases (BM) plays an important role in the decision between stereotactic radiosurgery (SRS) and whole brain radiation therapy (WBRT). METHODS: We analyzed the survival of 5750 SRS-treated BM patients as a function of BM number. Survival analyses were performed using Kaplan-Meier analysis as well as univariate and multivariate Cox proportional hazards models. RESULTS: BM patients were first categorized as those with 1, 2-4, and 5-10 BM based on the scheme proposed by Yamamoto et al (Lancet Oncology 2014)...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28734365/automatic-feed-phase-identification-in-multivariate-bioprocess-profiles-by-sequential-binary-classification
#11
Ramin Nikzad-Langerodi, Edwin Lughofer, Susanne Saminger-Platz, Thomas Zahel, Patrick Sagmeister, Christoph Herwig
In this paper, we propose a new strategy for retrospective identification of feed phases from online sensor-data enriched feed profiles of an Escherichia Coli (E. coli) fed-batch fermentation process. In contrast to conventional (static), data-driven multi-class machine learning (ML), we exploit process knowledge in order to constrain our classification system yielding more parsimonious models compared to static ML approaches. In particular, we enforce unidirectionality on a set of binary, multivariate classifiers trained to discriminate between adjacent feed phases by linking the classifiers through a one-way switch...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28733536/do-cancer-patients-with-dementia-receive-less-aggressive-treatment-in-end-of-life-care-a-nationwide-population-based-cohort-study
#12
Huei-Kai Huang, Jyh-Gang Hsieh, Chia-Jung Hsieh, Ying-Wei Wang
Dementia is a progressive, incurable disease that can deprive patients of the ability to make decisions. This study determines whether dementia influences the medical care that a cancer patient receives at the end of life. We conducted a nationwide population-based cohort study on patients aged ≥20 with newly diagnosed cancer during 2000-2012. After matching to reduce confounders, there were 7,111 patients with and 28,444 without dementia. The adjusted odd ratios (OR) for medical interventions, including intensive care, palliative care, invasive procedures, and advanced diagnostic testing, were calculated for the final month and three months of life by a multiple logistic regression model...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732643/development-and-internal-validation-of-a-prediction-model-to-estimate-the-probability-of-needing-aggressive-immunosuppressive-therapy-with-cytostatics-in-de-novo-lupus-nephritis-patients
#13
Mauricio Restrepo-Escobar, Paula Andrea Granda-Carvajal, Fabián Jaimes
OBJECTIVE: To develop a multivariable clinical prediction model for the requirement of aggressive immunosuppression with cytostatics, based on simple clinical record data and lab tests. The model is defined in accordance with the result of the kidney biopsies. METHODS: Retrospective study conducted with data from patients 16 years and older, with SLE and nephritis with less than 6 months of evolution. An initial bivariate analysis was conducted to select the variables to be included in a multiple logistic regression model...
July 18, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28732590/cost-utility-of-evaluation-for-posterior-vitreous-detachment-and-prophylaxis-of-retinal-detachment
#14
Nicolas A Yannuzzi, Jonathan S Chang, Gary C Brown, William E Smiddy
PURPOSE: To evaluate the costs and cost-utility of examination for posterior vitreous detachment (PVD) and treatment of associated pathology, and of managing various other peripheral retinal disorders to prevent retinal detachment (RD). DESIGN: A decision analysis model of cost-utility. PARTICIPANTS: There were no participants. METHODS: Published retrospective data on the natural course of PVD, retinal tears, and lattice degeneration were used to quantitate the visual benefits of examination and treatment...
July 18, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28732323/evaluation-of-an-online-training-for-improving-self-reported-evidence-based-decision-making-skills-in-cancer-control-among-public-health-professionals
#15
A B Morshed, P Ballew, M B Elliott, D Haire-Joshu, M W Kreuter, R C Brownson
OBJECTIVES: The purpose of this evaluation was to assess the effect of the online evidence-based cancer control (EBCC) training on improving the self-reported evidence-based decision-making (EBDM) skills in cancer control among Nebraska public health professionals. STUDY DESIGN: Cross-sectional group comparison. METHODS: Previously developed EBDM measures were administered via online surveys to 201 public health professionals at baseline (comparison group) and 123 professionals who took part in the training...
July 18, 2017: Public Health
https://www.readbyqxmd.com/read/28731382/external-validation-and-clinical-utility-of-a-prediction-model-for-6-month-mortality-in-patients-undergoing-hemodialysis-for-end-stage-kidney-disease
#16
Brian Forzley, Lee Er, Helen Hl Chiu, Ognjenka Djurdjev, Dan Martinusen, Rachel C Carson, Gaylene Hargrove, Adeera Levin, Mohamud Karim
BACKGROUND: End-stage kidney disease is associated with poor prognosis. Health care professionals must be prepared to address end-of-life issues and identify those at high risk for dying. A 6-month mortality prediction model for patients on dialysis derived in the United States is used but has not been externally validated. AIM: We aimed to assess the external validity and clinical utility in an independent cohort in Canada. DESIGN: We examined the performance of the published 6-month mortality prediction model, using discrimination, calibration, and decision curve analyses...
July 1, 2017: Palliative Medicine
https://www.readbyqxmd.com/read/28730610/effect-of-excessive-gestational-weight-gain-on-trial-of-labour-after-caesarean-a-retrospective-cohort-study
#17
Anna C E McDonald, Michelle R Wise, John M Thompson
BACKGROUND: Counselling women for and managing birth after caesarean section are important. Research is needed on evaluation of antenatal factors that predict likelihood of successful trial of labour after caesarean section (TOLAC). AIM: To evaluate the effect of gestational weight gain on mode of delivery in women having TOLAC. MATERIALS AND METHODS: A retrospective cohort study of eligible women who underwent TOLAC (January 2012 to July 2015) at a large urban hospital...
July 21, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28730559/fathers-know-best-inner-city-african-american-fathers-perceptions-regarding-their-involvement-in-the-pediatric-medical-home
#18
Orville Newton-Ray Bignall, Whitney J Raglin Bignall, Lisa M Vaughn, Ndidi I Unaka
OBJECTIVE: Despite nearly three in four African American (AA) children being born to unwed mothers, AA fathers maintain relatively high levels of parenting engagement, whether or not they live with their children. While father involvement correlates with decreased adverse child health outcomes, the nature of AA father involvement in child health-including engagement in the pediatric medical home-remains largely unexplored. Our study aimed to assess perceptions of pediatric medical home participation among a cohort of urban, AA fathers...
July 20, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28730500/partial-least-squares-regression-models-for-the-analysis-of-kinase-signaling
#19
Danielle L Bourgeois, Pamela K Kreeger
Partial least squares regression (PLSR) is a data-driven modeling approach that can be used to analyze multivariate relationships between kinase networks and cellular decisions or patient outcomes. In PLSR, a linear model relating an X matrix of dependent variables and a Y matrix of independent variables is generated by extracting the factors with the strongest covariation. While the identified relationship is correlative, PLSR models can be used to generate quantitative predictions for new conditions or perturbations to the network, allowing for mechanisms to be identified...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28730465/time-varying-decision-boundaries-insights-from-optimality-analysis
#20
Gaurav Malhotra, David S Leslie, Casimir J H Ludwig, Rafal Bogacz
The most widely used account of decision-making proposes that people choose between alternatives by accumulating evidence in favor of each alternative until this evidence reaches a decision boundary. It is frequently assumed that this decision boundary stays constant during a decision, depending on the evidence collected but not on time. Recent experimental and theoretical work has challenged this assumption, showing that constant decision boundaries are, in some circumstances, sub-optimal. We introduce a theoretical model that facilitates identification of the optimal decision boundaries under a wide range of conditions...
July 20, 2017: Psychonomic Bulletin & Review
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