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Coarsened exact matching

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https://www.readbyqxmd.com/read/27896706/anesthetics-and-outcome-in-status-epilepticus-a-matched-two-center-cohort-study
#1
Raoul Sutter, Gian Marco De Marchis, Saskia Semmlack, Peter Fuhr, Stephan Rüegg, Stephan Marsch, Wendy C Ziai, Peter W Kaplan
BACKGROUND: The use of anesthetics has been linked to poor outcome in patients with status epilepticus (SE). This association, however, may be confounded, as anesthetics are mostly administered in patients with more severe SE and critical illnesses. OBJECTIVE: To minimize treatment-selection bias, we assessed the association between continuously administered intravenous anesthetic drugs (IVADs) and outcome in SE patients by a matched two-center study design. METHODS: This cohort study was performed at the Johns Hopkins Bayview Medical Center, Baltimore, MD, USA and the University Hospital Basel, Basel, Switzerland...
November 29, 2016: CNS Drugs
https://www.readbyqxmd.com/read/27858243/the-value-of-specialist-care-infectious-disease-specialist-referrals-why-and-for-whom-a-retrospective-cohort-study-in-a-french-tertiary-hospital
#2
M Sasikumar, S Boyer, A Remacle-Bonnet, B Ventelou, P Brouqui
This study evaluated the impact of infectious disease (ID) specialist referrals on outcomes in a tertiary hospital in France. This study tackled methodological constraints (selection bias, endogeneity) using instrumental variables (IV) methods in order to obtain a quasi-experimental design. In addition, we investigated whether certain characteristics of patients have a bearing on the impact of the intervention. We used the payments database and ID department files to obtain data for adults admitted with an ID diagnosis in the North Hospital, Marseille from 2012 to 2014...
November 17, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/27806496/assessment-of-a-regression-method-to-reclassify-deaths-attributable-to-heart-failure
#3
Patricia A Metcalf, Michelle L Meyer, Chirayath M Suchindran, Gerardo Heiss
BACKGROUND: Evaluation of cause-specific mortality for public health research depends on accurate death certificates and vital records. However, ill-defined causes of death (termed garbage codes), such as heart failure, are often listed as the underlying cause of death. We examined a regression method proposed by Ahern and colleagues for redistributing deaths attributed to heart failure and compared it to a simulation of the regression method by bootstrapping. METHODS: Deaths attributed to heart failure in four U...
July 12, 2016: Global Journal of Health Science
https://www.readbyqxmd.com/read/27799509/on-the-effect-of-triplet-or-doublet-chemotherapy-in-advanced-gastric-cancer-results-from-a-national-cancer-registry
#4
Alberto Carmona-Bayonas, Paula Jiménez-Fonseca, Maria Luisa Sánchez Lorenzo, Avinash Ramchandani, Elena Asensio Martínez, Ana Custodio, Marcelo Garrido, Isabel Echavarría, Juana María Cano, Jose Enrique Lorenzo Barreto, Teresa García García, Felipe Álvarez Manceñido, Alejandra Lacalle, Marta Ferrer Cardona, Monserrat Mangas, Laura Visa, Elvira Buxó, Aitor Azkarate, Asunción Díaz-Serrano, Ana Fernández Montes, Fernando Rivera
BACKGROUND: There is currently no consensus regarding first-line chemotherapy for patients with advanced gastric cancer (AGC) who are ineligible to receive trastuzumab. The objective of this study was to evaluate the efficacy and tolerance of triplets versus doublets by analyzing a national gastric cancer registry. PATIENTS AND METHOD: Patients with AGC treated with polychemotherapy without associating trastuzumab were included from 2008 through 2016. The effect of triplets versus doublets was compared using 3 methods: Cox proportional hazards regression, propensity score matching (PSM), and coarsened exact matching (CEM)...
November 2016: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/27793027/transarterial-chemoembolization-for-early-stage-hepatocellular-carcinoma-decrease-local-tumor-control-and-overall-survival-compared-to-radiofrequency-ablation
#5
Arnaud Hocquelet, Olivier Seror, Jean-Frédéric Blanc, Nora Frulio, Cécile Salut, Jean-Charles Nault, Hervé Trillaud
BACKGROUND & AIMS: To compare treatment failure and survival associated with ultrasound-guided radiofrequency ablation (RFA) and trans-arterial chemoembolization (TACE) for early-stage HCC in Child-Pugh A cirrhosis patients. METHODS: 122 cirrhotic patients (RFA: 61; TACE: 61) were well matched according to cirrhosis severity; tumor size and serum alpha-fetoprotein. TACE was performed in case of inconspicuous nodule on US or nodule with "at risk location". Treatment failure was defined as local tumor progression (LTP) and primary treatment failure (failing to obtain complete response after two treatment session)...
October 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27768701/the-economic-burden-of-road-traffic-injuries-on-households-in-south-asia
#6
Khurshid Alam, Ajay Mahal
Globally, road traffic injuries accounted for about 1.36 million deaths in 2015 and are projected to become the fourth leading cause of disability-adjusted life years (DALYs) lost by 2030. One-fifth of these deaths occurred in South Asia where road traffic injuries are projected to increase by 144% by 2020. Despite this rapidly increasing disease burden there is limited evidence on the economic burden of road traffic injuries on households in South Asia. We applied a novel coarsened exact matching method to assess the household economic burden of road traffic injuries using nationally representative World Health Survey data from five South Asian countries- Bangladesh, India, Nepal, Pakistan and Sri Lanka collected during 2002-2003...
2016: PloS One
https://www.readbyqxmd.com/read/27577189/transitions-in-the-labor-market-after-cancer-a-comparison-of-self-employed-workers-and-salaried-staff
#7
Aurélia Tison, Luis Sagaon-Teyssier, Caroline Sansonetti, Jean-François Blatier, Alain Paraponaris
PURPOSE: The aim of this study was to investigate whether the labor market mobility of a population of cancer survivors 2 years after diagnosis differed compared to the French general population by focusing on the differences between self-employed workers and salaried staff. METHODS: Coarsened exact matching was implemented to reduce the sampling bias introduced by the comparison of individuals from two different surveys. Then, labor market mobility was analyzed by estimating transition probability matrices from 2010 to 2012 under the framework of a continuous-time Markov technique and by estimating a two-step model...
August 31, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/27541280/nonalcoholic-fatty-liver-is-not-associated-with-the-relationship-between-insulin-secretion-and-insulin-sensitivity-in-obese-children-matched-case-control-study
#8
Giorgio Bedogni, Andrea Mari, Alessandra De Col, Nicoletta Marazzi, Claudio Tiribelli, Melania Manco, Alessandro Sartorio
BACKGROUND: No study so far has evaluated the relationship between insulin secretion (ISEC) and insulin sensitivity (ISEN) in pediatric nonalcoholic fatty liver disease (NAFLD). We evaluated the relationship between ISEC and ISEN in young obese patients with and without NAFLD. METHODS: We matched 401 NAFLD(+) and 595 NAFLD(-) children by sex (same), age (≤1 year), pubertal status (same), and body mass index (BMI; ≤0.05 standard deviation scores) using coarsened exact matching...
August 19, 2016: Childhood Obesity
https://www.readbyqxmd.com/read/27471847/statin-therapy-prevents-the-onset-of-parkinson-disease-in-patients-with-diabetes
#9
Kun-Der Lin, Chun-Yuh Yang, Mei-Yueh Lee, Shu-Chen Ho, Ching-Kuan Liu, Shyi-Jang Shin
OBJECTIVE: We studied the association between the statin dosage and the risk of Parkinson disease (PD) in diabetic patients in Taiwan. METHODS: One million patients were randomly sampled from a National Health Insurance (NHI) database and followed from 2001 to 2008. Diabetic patients were screened by diagnosis of International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes, and statin dosage was determined according to the NHI pharmacy database...
October 2016: Annals of Neurology
https://www.readbyqxmd.com/read/27435004/the-impact-of-internal-displacement-on-child-mortality-in-post-earthquake-haiti-a-difference-in-differences-analysis
#10
Bradley Chen, Timothy J Halliday, Victoria Y Fan
BACKGROUND: The Haiti earthquake in 2010 resulted in 1.5 million internally displaced people (IDP), yet little is known about the impact of displacement on health. In this study, we estimate the impact of displacement on infant and child mortality and key health-behavior mechanisms. METHODS: We employ a difference-in-differences (DID) design with coarsened exact matching (CEM) to ensure comparability among groups with different displacement status using the 2012 Haiti Demographic and Health Survey (DHS)...
July 19, 2016: International Journal for Equity in Health
https://www.readbyqxmd.com/read/27422750/comparison-of-no-touch-multi-bipolar-vs-monopolar-radiofrequency-ablation-for-small-hcc
#11
Arnaud Hocquelet, Christophe Aubé, Agnès Rode, Victoire Cartier, Olivier Sutter, Anne Frederique Manichon, Jérome Boursier, Gisèle N'kontchou, Philippe Merle, Jean-Frédéric Blanc, Hervé Trillaud, Olivier Seror
BACKGROUND & AIMS: The primary aim of this study was to compare the rate of global radiofrequency ablation (RFA) failure between monopolar RFA (MonoRFA) vs. no-touch multi-bipolar RFA (NTmbpRFA) for small hepatocellular carcinoma (HCC) ⩽5cm in cirrhotic patients. METHODS: A total of 362 cirrhotic patients were included retrospectively across four French centres (181 per treatment group). Global RFA failure (primary RFA failure or local tumour progression) was analysed using the Kaplan-Meier method after coarsened exact matching...
July 13, 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27316700/evaluating-the-impact-of-social-franchising-on-family-planning-use-in-kenya
#12
Nirali M Chakraborty, Mwende Mbondo, Joyce Wanderi
BACKGROUND: In Kenya, as in many low-income countries, the private sector is an important component of health service delivery and of providing access to preventive and curative health services. The Tunza Social Franchise Network, operated by Population Services Kenya, is Kenya's largest network of private providers, comprising 329 clinics. Franchised clinics are only one source of family planning (FP), and this study seeks to understand whether access to a franchise increases the overall use or provides another alternative for women who would have found FP services in the public sector...
2016: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/27315830/persistent-low-adherence-to-hypertension-treatment-in-kyrgyzstan-how-can-we-understand-the-role-of-drug-affordability
#13
Adrianna Murphy, Melitta Jakab, Martin McKee, Erica Richardson
It is well known that cardiovascular diseases (CVD) are a growing cause of mortality and morbidity in low-and middle-income countries (LMIC). While hypertension (HTN), a leading risk factor for CVD, can be easily managed with widely available medicines, there is a huge gap in treatment for HTN in many LMIC. One such country is Kyrgyzstan, where HTN is a major public health concern and adherence to medication is low. The reasons for low adherence in Kyrgyzstan are not well understood, but some evidence suggests that HTN medicines may be unaffordable for low-income families, resulting in inequitable access to HTN treatment...
December 2016: Health Policy and Planning
https://www.readbyqxmd.com/read/27186983/are-there-spillover-effects-from-the-gi-bill-the-mental-health-of-wives-of-korean-war-veterans
#14
Anusha M Vable, Ichiro Kawachi, David Canning, M Maria Glymour, Marcia P Jimenez, S V Subramanian
BACKGROUND: The Korean War GI Bill provided economic benefits for veterans, thereby potentially improving their health outcomes. However potential spillover effects on veteran wives have not been evaluated. METHODS: Data from wives of veterans eligible for the Korean War GI Bill (N = 128) and wives of non-veterans (N = 224) from the Health and Retirement Study were matched on race and coarsened birth year and childhood health using coarsened exact matching. Number of depressive symptoms in 2010 (average age = 78) were assessed using a modified, validated Center for Epidemiologic Studies-Depression Scale...
2016: PloS One
https://www.readbyqxmd.com/read/27077914/glaucoma-surgery-calculator-limited-additive-effect-of-phacoemulsification-on-intraocular-pressure-in-ab-interno-trabeculectomy
#15
Ashley E Neiweem, Igor I Bussel, Joel S Schuman, Eric N Brown, Nils A Loewen
PURPOSE: To compare intraocular pressure (IOP) reduction and to develop a predictive surgery calculator based on the results between trabectome-mediated ab interno trabeculectomy in pseudophakic patients versus phacoemulsification combined with trabectome-mediated ab interno trabeculectomy in phakic patients. METHODS: This observational surgical cohort study analyzed pseudophakic patients who received trabectome-mediated ab interno trabeculectomy (AIT) or phacoemulsification combined with AIT (phaco-AIT)...
2016: PloS One
https://www.readbyqxmd.com/read/27048370/coping-with-the-economic-burden-of-diabetes-tb-and-co-prevalence-evidence-from-bishkek-kyrgyzstan
#16
Matthias Arnold, David Beran, Hassan Haghparast-Bidgoli, Neha Batura, Baktygul Akkazieva, Aida Abdraimova, Jolene Skordis-Worrall
BACKGROUND: The increasing number of patients co-affected with Diabetes and TB may place individuals with low socio-economic status at particular risk of persistent poverty. Kyrgyz health sector reforms aim at reducing this burden, with the provision of essential health services free at the point of use through a State-Guaranteed Benefit Package (SGBP). However, despite a declining trend in out-of-pocket expenditure, there is still a considerable funding gap in the SGBP. Using data from Bishkek, Kyrgyzstan, this study aims to explore how households cope with the economic burden of Diabetes, TB and co-prevalence...
2016: BMC Health Services Research
https://www.readbyqxmd.com/read/27045223/the-long-term-effects-of-cancer-on-employment-and-earnings
#17
Sung-Hee Jeon
The study examines long-term effects of cancer on the work status and annual earnings of cancer survivors who had a strong attachment to the labor market prior to their cancer diagnosis. We use linkage data combining Canadian 1991 Census microdata with administrative records from the Canadian Cancer Registry, the Vital Statistics Registry and longitudinal personal income tax records. We estimate changes in the magnitude of cancer effects during the first 3 years following the year of the diagnosis using a large sample of cancer survivors diagnosed at ages 25 to 61...
April 4, 2016: Health Economics
https://www.readbyqxmd.com/read/26921724/role-transitions-and-substance-use-among-hispanic-emerging-adults-a-longitudinal-study-using-coarsened-exact-matching
#18
Jon-Patrick Allem, Steve Sussman, Daniel W Soto, Lourdes Baezconde-Garbanati, Jennifer B Unger
INTRODUCTION: Emerging adulthood (ages 18 to 25) is characterized by changes in relationships, education, work, and viewpoints on life. The prevalence of substance use also peaks during this period. Among emerging adults, Hispanics have a unique substance use profile, and have been described as a priority population for substance use prevention. Cross-sectional studies among Hispanics have shown that specific role transitions (e.g., starting or ending romantic relationships) were associated with substance use...
July 2016: Addictive Behaviors
https://www.readbyqxmd.com/read/26895293/coarsened-exact-matching-of-phaco-trabectome-to-trabectome-in-phakic-patients-lack-of-additional-pressure-reduction-from-phacoemulsification
#19
Hardik A Parikh, Igor I Bussel, Joel S Schuman, Eric N Brown, Nils A Loewen
PURPOSE: To compare intraocular pressure (IOP) after trabectome-mediated ab interno trabeculectomy surgery in phakic patients (T) and trabectome with same session phacoemulsification (PT) using Coarsened Exact Matching. Although phacoemulsification is associated with IOP reduction when performed on its own, it is not known how much it contributes in PT. METHODS: Subjects were divided into phakic T and PT. Exclusion criteria were follow-up for <12 months and additional glaucoma surgery...
2016: PloS One
https://www.readbyqxmd.com/read/26778285/can-social-policy-influence-socioeconomic-disparities-korean-war-gi-bill-eligibility-and-markers-of-depression
#20
Anusha M Vable, David Canning, M Maria Glymour, Ichiro Kawachi, Marcia P Jimenez, Subu V Subramanian
PURPOSE: The Korean War GI Bill provided socioeconomic benefits to veterans; however, its association with health is unclear; we hypothesize GI Bill eligibility is associated with fewer depressive symptoms and smaller disparities. METHODS: Data from 246 Korean War GI Bill eligible veterans and 240 nonveterans from the Health and Retirement Study were matched on birth year, southern birth, race, height, and childhood health using coarsened exact matching. Number of depressive symptoms in 2010 (average age = 78 years) was assessed using a modified, validated Center for Epidemiologic Studies-Depression Scale, dichotomized to reflect elevated depressive symptoms...
February 2016: Annals of Epidemiology
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