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https://www.readbyqxmd.com/read/28529187/multiple-outcomes-and-analyses-in-clinical-trials-create-challenges-for-interpretation-and-research-synthesis
#1
Evan Mayo-Wilson, Nicole Fusco, Tianjing Li, Hwanhee Hong, Joe Canner, Kay Dickersin
OBJECTIVE: To identify variations in outcomes and results across public and non-public reports of randomized clinical trials (RCTs). STUDY DESIGN AND SETTING: Eligible RCTs examined gabapentin for neuropathic pain and quetiapine for bipolar depression, reported in public (e.g., journal articles) and non-public sources (e.g., clinical study reports) available by 2015. We recorded pre-specified outcome domains. We considered outcomes "defined" if they included the domain, measure, metric, method of aggregation, and time-point...
May 18, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28514486/efficacy-of-42-pharmacologic-cotreatment-strategies-added-to-antipsychotic-monotherapy-in-schizophrenia-systematic-overview-and-quality-appraisal-of-the-meta-analytic-evidence
#2
Christoph U Correll, Jose M Rubio, Gabriella Inczedy-Farkas, Michael L Birnbaum, John M Kane, Stefan Leucht
Importance: Limited treatment responses in schizophrenia prompted the testing of combining an antipsychotic drug treatment with a second psychotropic medication. A comprehensive evaluation of the efficacy of multiple medication combinations is missing. Objective: To summarize and compare the meta-analytically determined efficacy of pharmacologic combination strategies of antipsychotic drugs in adults with schizophrenia. Data Sources: Systematic search of PubMed and PsycInfo until May 13, 2016...
May 17, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28509698/a-meta-analysis-of-studies-comparing-outcomes-of-diverse-acellular-dermal-matrices-for-implant-based-breast-reconstruction
#3
Kyeong-Tae Lee, Goo-Hyun Mun
BACKGROUND: The current diversity of the available acellular dermal matrix (ADM) materials for implant-based breast reconstruction raises the issue of whether there are any differences in postoperative outcomes according to the kind of ADM used. The present meta-analysis aimed to investigate whether choice of ADM products can affect outcomes. METHODS: Studies that used multiple kinds of ADM products for implant-based breast reconstruction and compared outcomes between them were searched...
May 15, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28507039/do-aspirin-and-other-nsaids-confer-a-survival-benefit-in-men-diagnosed-with-prostate-cancer-a-pooled-analysis-of-nih-aarp-and-plco-cohorts
#4
Cindy Ke Zhou, Sarah E Daugherty, Linda M Liao, Neal D Freedman, Christian C Abnet, Ruth Pfeiffer, Michael B Cook
<span style="margin: 0px; font-family: 'New times rome',serif;">Prostate cancer is one of the leading causes of cancer death in US men. There is an unmet need to identify modifiable risk factors for prostate cancer survival. Experimental studies have suggested that nonsteroidal anti-inflammatory drugs (NSAIDs) may improve prostate cancer survival through anti-thrombotic and anti-inflammation mechanisms. Results from previous observational studies have been equivocal, and few have assessed whether an etiologically relevant time window of exposure exists...
May 15, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28504303/distracted-walking-bicycling-and-driving-systematic-review-and-meta-analysis-of-mobile-technology-and-youth-crash-risk
#5
Despina Stavrinos, Caitlin N Pope, Jiabin Shen, David C Schwebel
This article examined the impact of mobile technology on young pedestrians, bicyclists, and drivers. A systematic search yielded 41 articles meeting inclusion criteria: peer-reviewed, published before February 1, 2016, behavioral outcome related to pedestrian, bicycling, or driving in the presence of mobile technology use, youth sample. Eleven studies were meta-analyzed to evaluate increased risk for crash/near-crash while distracted. Risk of bias and quality of research were assessed. Across methodologies, developmental stages, and type of distracting task, mobile technology use impairs youth safety on the road...
May 15, 2017: Child Development
https://www.readbyqxmd.com/read/28504066/the-association-of-recreational-and-competitive-running-with-hip-and-knee-osteoarthritis-a-systematic-review-and-meta-analysis
#6
Eduard Alentorn-Geli, Kristian Samuelsson, Volker Musahl, Cynthia L Green, Mohit Bhandari, Jón Karlsson
Study Design Systematic review and meta-analysis. Background Running is a healthy and popular activity worldwide, but data regarding its association with osteoarthritis (OA) are conflicting. Objectives To evaluate the association of hip and knee OA with running and to explore the influence of running intensity on this association. Methods PubMed, EMBASE and Cochrane Library databases were used to identify studies investigating the occurrence of OA of the hip and/or knee among runners. Studies comparing this occurrence between runners and controls (sedentary, non-running individuals) were meta-analyzed...
May 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28499499/heat-related-morbidity-and-mortality-in-new-england-evidence-for-local-policy
#7
Gregory A Wellenius, Melissa N Eliot, Kathleen F Bush, Dennis Holt, Rebecca A Lincoln, Andrew E Smith, Julia Gold
BACKGROUND: Heat-related morbidity and mortality is a recognized public health concern. However, public health officials need to base policy decisions on local evidence, which is often lacking for smaller communities. OBJECTIVES: To evaluate the association between maximum daily heat index (HI) and morbidity and mortality in 15 New England communities (combined population: 2.7 million) in order to provide actionable evidence for local officials. METHODS: We applied overdispersed Poisson nonlinear distributed lag models to evaluate the association between HI and daily (May-September) emergency department (ED) admissions and deaths in each of 15 study sites in New Hampshire, Maine, and Rhode Island, controlling for time trends, day of week, and federal holidays...
March 25, 2017: Environmental Research
https://www.readbyqxmd.com/read/28489217/intra-aortic-balloon-pump-in-cardiogenic-shock-state-of-the-art
#8
Petronio Generoso Thomaz, Leonel Adelino Moura, Giovana Muramoto, Renato Samy Assad
The clinical definition of cardiogenic shock is that of a low cardiac output and evidence of tissue hypoxia in the presence of adequate blood volume. Cardiogenic shock is the main cause of death related to acute myocardial infarction (AMI), with a mortality rate of 45-70% in the absence of aggressive and highly specialized technical care. The intra-aortic balloon pump (IABP) is one of the most widely used mechanical assisting devices. During the last two decades, about 42% of patients with AMI who evolved with cardiogenic shock received mechanical circulatory assistance with IABP...
January 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28485198/pros-and-cons-of-3d-image-fusion-in-endovascular-aortic-repair-a-systematic-review-and-meta-analysis
#9
Seline R Goudeketting, Stefan G H Heinen, Çağdaş Ünlü, Daniel A F van den Heuvel, Jean-Paul P M de Vries, Marco J van Strijen, Anna M Sailer
PURPOSE: To systematically review and meta-analyze the added value of 3-dimensional (3D) image fusion technology in endovascular aortic repair for its potential to reduce contrast media volume, radiation dose, procedure time, and fluoroscopy time. METHODS: Electronic databases were systematically searched for studies published between January 2010 and March 2016 that included a control group describing 3D fusion imaging in endovascular aortic procedures. Two independent reviewers assessed the methodological quality of the included studies and extracted data on iodinated contrast volume, radiation dose, procedure time, and fluoroscopy time...
May 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28475024/correlations-of-18f-fdg-and-18f-flt-uptake-on-pet-with-ki-67-expression-in-patients-with-lung-cancer-a-meta-analysis
#10
Guohua Shen, Huan Ma, Fuwen Pang, Pengwei Ren, Anren Kuang
Background Positron emission tomography (PET) imaging using the radiotracers 18F-fluorodeoxyglucose (FDG) or 18F-fluorothymidine (FLT) has been proposed as imaging biomarkers of cell proliferation. Purpose To explore the correlations of FDG and FLT uptake with the Ki-67 labeling index in patients with lung cancer. Material and Methods Major databases were systematically searched for all relevant literature published in English. The correlation coefficient (rho) and its 95% confidence interval (CI) of individual studies were meta-analyzed using a random-effects model...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28459708/withholding-pantoprazole-for-stress-ulcer-prophylaxis-in-critically-ill-patients-a-pilot-randomized-clinical-trial-and-meta-analysis
#11
Waleed Alhazzani, Gordon Guyatt, Mohammed Alshahrani, Adam M Deane, John C Marshall, Richard Hall, John Muscedere, Shane W English, François Lauzier, Lehana Thabane, Yaseen M Arabi, Tim Karachi, Bram Rochwerg, Simon Finfer, Nick Daneman, Fayez Alshamsi, Nicole Zytaruk, Diane Heel-Ansdell, Deborah Cook
INTRODUCTION: A decreased frequency of upper gastrointestinal bleeding and a possible association of proton pump inhibitor use with Clostridium difficile and ventilator-associated pneumonia have raised concerns recently. The Reevaluating the Inhibition of Stress Erosions Pilot Trial determined the feasibility of undertaking a larger trial investigating the efficacy and safety of withholding proton pump inhibitors in critically ill patients. METHODS: In 10 ICUs, we randomized adult ICU patients anticipated to be mechanically ventilated for greater than or equal to 48 hours to receive 40 mg of IV pantoprazole daily or placebo...
April 27, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28453908/sexual-dysfunction-in-subjects-treated-with-inhibitors-of-5%C3%AE-reductase-for-benign-prostatic-hyperplasia-a-comprehensive-review-and-meta-analysis
#12
REVIEW
G Corona, G Tirabassi, D Santi, E Maseroli, M Gacci, M Dicuio, A Sforza, E Mannucci, M Maggi
Despite their efficacy in the treatment of benign prostatic hyperplasia, the popularity of inhibitors of 5α-reductase (5ARIs) is limited by their association with adverse sexual side effects. The aim of this study was to review and meta-analyze currently available randomized clinical trials evaluating the rate of sexual side effects in men treated with 5ARIs. An extensive Medline Embase and Cochrane search was performed including the following words: 'finasteride', 'dutasteride', 'benign prostatic hyperplasia'...
April 28, 2017: Andrology
https://www.readbyqxmd.com/read/28447828/gender-differences-in-depression-in-representative-national-samples-meta-analyses-of-diagnoses-and-symptoms
#13
Rachel H Salk, Janet S Hyde, Lyn Y Abramson
In 2 meta-analyses on gender differences in depression in nationally representative samples, we advance previous work by including studies of depression diagnoses and symptoms to (a) estimate the magnitude of the gender difference in depression across a wide array of nations and ages; (b) use a developmental perspective to elucidate patterns of gender differences across the life span; and (c) incorporate additional theory-driven moderators (e.g., gender equity). For major depression diagnoses and depression symptoms, respectively, we meta-analyzed data from 65 and 95 articles and their corresponding national data sets, representing data from 1,716,195 and 1,922,064 people in over 90 different nations...
April 27, 2017: Psychological Bulletin
https://www.readbyqxmd.com/read/28445207/effect-of-renal-sympathetic-denervation-on-short-term-blood-pressure-variability-in-resistant-hypertension-a-meta-analysis
#14
Nikos Vogiatzakis, Costas Tsioufis, Georgios Georgiopoulos, Costas Thomopoulos, Kyriakos Dimitriadis, Alexandros Kasiakogias, Dimitrios Konstantinidis, Thodoris Kalos, Felix Mahfoud, Michael Doumas, Vasilios Papademetriou, Dimitrios Tousoulis
BACKGROUND/OBJECTIVES: Short-term blood pressure variability (BPV) is affected by multiple factors including the sympathetic nervous system drive. Regarding the latter, the novel interventional technology of renal denervation (RDN), by modulating the sympathetic system activation, could have a beneficial impact on BPV. The aim of the current study is to review and meta-analyze the available evidence on the effect of RDN on short-term BPV. METHODS: We searched Medline/PubMed database until October 2016 for studies with eligible content...
April 25, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28443356/sham-or-no-sham-control-that-is-the-question-in-trials-of-renal-denervation-for-resistant-hypertension-a-systematic-meta-analysis
#15
Fadl Elmula M Fadl Elmula, Ying-Mei Feng, Lotte Jacobs, Anne C Larstorp, Sverre E Kjeldsen, Alexandre Persu, Jan A Staessen
BACKGROUND: Studies of renal denervation (RDN) in patients with apparent treatment resistant hypertension have been hampered by a number of patient and physician related confounders on blood pressure (BP) including poor drug adherence. It remains uncertain whether RDN lowers BP. We aimed to investigate whether the use of sham control is essential in RDN studies or whether systematic use of 24-hour ambulatory BP provides enough information thereby making an invasive sham control redundant...
April 26, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28417994/trends-in-epidemiology-of-pediatric-inflammatory-bowel-disease-in-canada-distributed-network-analysis-of-multiple-population-based-provincial-health-administrative-databases
#16
Eric I Benchimol, Charles N Bernstein, Alain Bitton, Matthew W Carroll, Harminder Singh, Anthony R Otley, Maria Vutcovici, Wael El-Matary, Geoffrey C Nguyen, Anne M Griffiths, David R Mack, Kevan Jacobson, Nassim Mojaverian, Divine Tanyingoh, Yunsong Cui, Zoann J Nugent, Janie Coulombe, Laura E Targownik, Jennifer L Jones, Desmond Leddin, Sanjay K Murthy, Gilaad G Kaplan
OBJECTIVES: The incidence of pediatric-onset inflammatory bowel disease (IBD) is increasing worldwide. We used population-based health administrative data to determine national Canadian IBD incidence, prevalence, and trends over time of childhood-onset IBD. METHODS: We identified children <16 years (y) diagnosed with IBD 1999-2010 from health administrative data in five provinces (Alberta, Manitoba, Nova Scotia, Ontario, Quebec), comprising 79.2% of the Canadian population...
April 18, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28415638/altered-long-non-coding-rnas-predict-worse-outcome-in-osteosarcoma-patients-evidence-from-a-meta-analysis
#17
Yanliang Yang, Shunli Wang, Teng Li
Long non-coding RNAs (lncRNAs) are emerging as promising prognostic biomarkers in an expanding list of malignant neoplasms. Here, we sought to investigate the strength of associations between lncRNA signatures and clinical outcomes in osteosarcoma. We conducted a systematic search of the online databases from inception to July 2016. Hazard ratios (HRs) with corresponding 95% confidence intervals (CIs) for the primary endpoints of overall survival (OS), progression-free survival (PFS) or event-free survival (EFS) were extracted and meta-analyzed...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28410350/education-socioeconomic-status-and-intelligence-in-childhood-and-stroke-risk-in-later-life-a-meta-analysis
#18
Caroline A McHutchison, Ellen V Backhouse, Vera Cvoro, Susan D Shenkin, Joanna M Wardlaw
BACKGROUND: Stroke is the second most common cause of death, and a common cause of dependency and dementia. Adult vascular risk factors and socioeconomic status (SES) are associated with increased risk, but less is known about early life risk factors, such as education, childhood SES, or intelligence (IQ). METHODS: We comprehensively searched Medline, PsycINFO and EMBASE from inception to November 2015. We included all studies reporting data on >50 strokes examining childhood/premorbid IQ, SES, and education...
April 7, 2017: Epidemiology
https://www.readbyqxmd.com/read/28397261/validity-and-reliability-of-administrative-coded-data-for-the-identification-of-hospital-acquired-infections-an-updated-systematic-review-with-meta-analysis-and-meta-regression-analysis
#19
Olga Redondo-González, José María Tenías, Ángel Arias, Alfredo J Lucendo
OBJECTIVE: To conduct an updated assessment of the validity and reliability of administrative coded data (ACD) in identifying hospital-acquired infections (HAIs). METHODS: We systematically searched three libraries for studies on ACD detecting HAIs compared to manual chart review. Meta-analyses were conducted for prosthetic and nonprosthetic surgical site infections (SSIs), Clostridium difficile infections (CDIs), ventilator-associated pneumonias/events (VAPs/VAEs) and non-VAPs/VAEs, catheter-associated urinary tract infections (CAUTIs), and central venous catheter-related bloodstream infections (CLABSIs)...
April 11, 2017: Health Services Research
https://www.readbyqxmd.com/read/28393384/binomirare-a-robust-test-of-the-association-of-a-rare-variant-with-a-disease-for-pooled-analysis-and-meta-analysis-with-application-to-the-hchs-sol
#20
Tamar Sofer
Most regression-based tests of the association between a low-count variant and a binary outcome do not protect type 1 error, especially when tests are rejected based on a very low significance threshold. Noted exception is the Firth test. However, it was recently shown that in meta-analyzing multiple studies all asymptotic, regression-based tests, including the Firth, may not control type 1 error in some settings, and the Firth test may suffer a substantial loss of power. The problem is exacerbated when the case-control proportions differ between studies...
April 10, 2017: Genetic Epidemiology
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