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Publication bias

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https://www.readbyqxmd.com/read/28107500/diagnostic-efficacy-of-sentinel-lymph-node-biopsy-in-early-oral-squamous-cell-carcinoma-a-meta-analysis-of-66-studies
#1
Muyuan Liu, Steven J Wang, Xihong Yang, Hanwei Peng
OBJECTIVES: The diagnostic efficacy of sentinel lymph node biopsy(SLNB) in early oral squamous cell carcinoma(OSCC) still remains controversial. This meta-analysis was conducted to assess the diagnostic value of SLNB in clinically neck-negative T1-2 OSCC. METHODS: A systematic literature search for relevant literature published up to September 11, 2016 was conducted in PubMed, Embase, Web of Science, Cochrane Library and ClinicalTrials, and the reference lists of eligible studies were examined...
2017: PloS One
https://www.readbyqxmd.com/read/28107192/incidence-and-risk-of-infections-associated-with-egfr-tkis-in-advanced-non-small-cell-lung-cancer-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#2
Yingtian Wang, Mingzhen Wang, Qiaoxia Wang, Zhiying Geng, Mingxiang Sun
Currently, the overall incidence and risk of infections with epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (TKIs) in non-small-cell lung cancer (NSCLC) patients remained undetermined. We searched Pubmed for related articles published from 1 January 1990 to 31 November 2015. Eligible studies included prospective randomized controlled trials (RCTs) evaluating therapy with or without EGFR-TKIs in patients with NSCLC. Data on infections were extracted. Pooled incidence, Peto odds ratio (Peto OR), and 95% confidence intervals (CIs) were calculated...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28106662/medication-adherence-interventions-among-hypertensive-black-adults-a-systematic-review-and-meta-analysis
#3
Todd M Ruppar, Jacqueline M Dunbar-Jacob, David R Mehr, Lisa Lewis, Vicki S Conn
BACKGROUND: Black adults have higher rates of hypertension and lower rates of blood pressure (BP) control than white adults. Improving BP control requires attention to use of antihypertensive medications, but antihypertensive regimen adherence remains low, preventing improved BP control. METHODS AND RESULTS: We conducted a comprehensive search and systematic review of intervention studies testing interventions to improve adherence to BP medications among black adults with hypertension...
January 18, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28104631/the-ethics-of-reporting-all-the-results-of-clinical-trials
#4
REVIEW
Iain Brassington
INTRODUCTION OR BACKGROUND: The terms 'publication bias' and 'reporting bias' describe aspects of a phenomenon by which data from trials are not publicized, and so remain inaccessible. This may generate a false impression about the world; but those facts may have important implications for clinical decisions. Thus, the bias may leave patients worse off than they might be. SOURCES OF DATA: Published journal articles. AREAS OF AGREEMENT: There is general agreement that the phenomenon happens, and that to the extent that it happens, it is undesirable for moral rather than simply epistemic reasons...
January 18, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28104184/elder-abuse-prevalence-in-community-settings-a-systematic-review-and-meta-analysis
#5
Yongjie Yon, Christopher R Mikton, Zachary D Gassoumis, Kathleen H Wilber
BACKGROUND: Elder abuse is recognised worldwide as a serious problem, yet quantitative syntheses of prevalence studies are rare. We aimed to quantify and understand prevalence variation at the global and regional levels. METHODS: For this systematic review and meta-analysis, we searched 14 databases, including PubMed, PsycINFO, CINAHL, EMBASE, and MEDLINE, using a comprehensive search strategy to identify elder abuse prevalence studies in the community published from inception to June 26, 2015...
February 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28103417/diabetes-as-a-risk-factor-for-acute-coronary-syndrome-in-women-compared-with-men-a-meta-analysis-including-10-856-279-individuals-and-106-703-acute-coronary-syndrome-events
#6
Xue Dong, Rongrong Cai, Jie Sun, Rong Huang, Pin Wang, Haixia Sun, Sai Tian, Shaohua Wang
BACKGROUND: Diabetes mellitus is a significant cause of death and disability worldwide and is a strong risk factor for acute coronary syndrome (ACS). Whether diabetes confers the same excess risk of ACS in both sexes is unknown. Therefore, we undertook a meta-analysis to estimate the relative risk for ACS associated with diabetes in men and women. METHODS: We systematically searched PubMed, Embase, and Cochrane Library databases for both case-control and cohort studies published between Jan 1, 1966, and Jan 1, 2015...
January 19, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28102552/could-urinary-nerve-growth-factor-be-a-biomarker-for-overactive-bladder%C3%A2-a-meta-analysis
#7
REVIEW
Wei Sheng, Hongwei Zhang, Kirschner-Hermanns Ruth
OBJECTIVE: The previously reported association between urinary nerve growth factor (NGF) and overactive bladder (OAB) was controversial. We performed this meta-analysis based on current available studies to sum up all evidence on this association. METHODS: Studies were identified by searching PubMed, Embase, and Cochrane library from inception to September 2016. Pooled standardized mean difference (SMD) with their corresponding 95% confidence intervals (CIs) were calculated using a random-effects model...
January 19, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28102361/effectiveness-and-tolerability-of-different-recommended-doses-of-ppis-and-h2ras-in-gerd-network-meta-analysis-and-grade-system
#8
Chao Zhang, Joey S W Kwong, Rui-Xia Yuan, Hao Chen, Chang Xu, Yi-Pin Wang, Gong-Li Yang, Jin-Zhu Yan, Le Peng, Xian-Tao Zeng, Hong Weng, Jie Luo, Yu-Ming Niu
Proton pump inhibitors (PPIs) and histamine-2-receptor antagonists (H2RAs) are used for gastro-esophageal reflux disease (GERD); however, the clinical evidence for treatment is poor. We evaluated the effectiveness and tolerability of different doses of PPIs, H2RAs and placebo in adults with GERD. Six online databases were searched through September 1, 2016. All related articles were included and combined with a Bayesian network meta-analysis from randomized controlled trials (RCTs). The GRADE systems were employed to assess the main outcome...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101761/the-sg13s114-polymorphism-of-the-alox5ap-gene-is-associated-with-ischemic-stroke-in-europeans-a-meta-analysis-of-8062-subjects
#9
Zhongjun Chen, Jinyu Zheng, Wenguang Liu, Kun Yang, Kai Li, Baosheng Huang, Ronglan Zhu, Xiaocheng Lu, Lixin Li
The association between ALOX5AP SG13S114 polymorphism and ischemic stroke (IS) susceptibility has extensively been investigated, especially in white populations; however, the results were inconclusive. Here, we perform a meta-analysis to clarify the effect of SG13S114 variant on the IS risk in Europeans. The Web of Science, PubMed, EMBASE, and Medline were searched up to August 1st, 2016. Data were extracted and the odd ratios (ORs) and 95% confidence intervals (CIs) were calculated by a fixed-effects or random-effects model...
January 18, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28101729/air-pollution-and-successful-aging-recent-evidence-and-new-perspectives
#10
REVIEW
Gali Cohen, Yariv Gerber
PURPOSE OF REVIEW: Worldwide demographic changes occurring in a relatively short period have led to a growing interest in the determinants of aging "successfully" and how to promote a healthier old age. As environmental exposures such as ambient air pollution are believed to play a role in the process of aging, they might represent one of the pathways turning potential successful agers to unsuccessful agers. We aimed to critically review the current epidemiological evidence of the associations between chronic exposure to ambient air pollution and several key determinants of unsuccessful aging and to identify specific populations of unsuccessful agers that are potentially more vulnerable to air pollution's health effects...
January 18, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28101328/perceived-health-status-in-a-comparative-perspective-methodological-limitations-and-policy-implications-for-israel
#11
Baruch Levi
BACKGROUND: The perceived health status indicator included in the OECD Health Statistics suffers from severe methodological limitations related to data collection. Furthermore, this indicator is also included in the OECD's Better Life Index, thus distorting the total health score of some OECD countries, among them Israel. The purpose of this paper is to explore the erroneous use of OECD health data in Israel and to warn of its implications. METHODS: Analysis of data from the OECD Health Database, Better Life Index and the Israeli Central Bureau of Statistics, review of media reports and governmental documents concerning health measures, conversations and correspondence held with officials in the relevant organizations...
2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28100719/testing-for-departure-from-uniformity-and-estimating-mean-direction-for-circular-data
#12
Graeme D Ruxton
Although circular data are common in biological studies, the analysis of such data is often more rudimentary than it need be. One of the most common hypotheses tested is whether the data suggest that samples are clustered around a certain specified direction, rather than being uniformly spread across all possible directions. Here, I use data from a recent publication on the compass directions of epiphytes and mistletoes on tree trunks. This is used to demonstrate how with relatively little extra work researchers can improve the rigour of testing such hypotheses, and this improved rigour can lead to biological insights missed by simpler analyses...
January 2017: Biology Letters
https://www.readbyqxmd.com/read/28099908/the-association-of-two-polymorphisms-in-adiponectin-encoding-gene-with-hypertension-risk-and-the-changes-of-circulating-adiponectin-and-blood-pressure-a-meta-analysis
#13
Jianmin Wu, Guoyan Xu, Wenqin Cai, Yun Huang, Ningyu Xie, Yihua Shen, Liangdi Xie
OBJECTIVES: This meta-analysis was prepared to synthesize published data on the association of two polymorphisms (T45G and G276T) in adiponectin-encoding gene (ADIPOQ) with hypertension risk and the changes of circulating adiponectin and blood pressure.Methodology and Major Findings: Data were collected and corrected by two authors, and were managed with Stata software. In total, 12 articles were synthesized, including 12 studies (3358 cases and 5121 controls) for the association of two study polymorphisms with hypertension risk and 11 studies (3053 subjects) for the between-genotype changes of adiponectin and/or blood pressure...
January 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099736/systematic-review-of-same-day-discharge-after-minimally-invasive-hysterectomy
#14
REVIEW
Malene Korsholm, Ole Mogensen, Mette M Jeppesen, Vibeke K Lysdal, Koen Traen, Pernille T Jensen
BACKGROUND: Same-day discharge has been suggested to safe and acceptable following minimally invasive hysterectomy. OBJECTIVES: To evaluate the feasibility of same-day discharge following minimally invasive hysterectomy and to identify associated factors. SEARCH STRATEGY: Medline, Embase and the Cochrane Central Register of Controlled Trials were systematically searched using the terms "same day discharge", "minimally invasive surgery", and "hysterectomy" between October 1 and October 31, 2015...
February 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28098767/cheese-consumption-and-risk-of-all-cause-mortality-a-meta-analysis-of-prospective-studies
#15
Xing Tong, Guo-Chong Chen, Zheng Zhang, Yu-Lu Wei, Jia-Ying Xu, Li-Qiang Qin
The association between cheese consumption and risk for major health endpoints has been investigated in many epidemiologic studies, but findings are inconsistent. As all-cause mortality can be viewed as the final net health effect of dietary intakes, we conducted a meta-analysis to examine the long-term association of cheese consumption with all-cause mortality. Relevant studies were identified by a search of the PubMed database through May 2016. Reference lists from retrieved articles were also reviewed. Summary relative risks (RR) and 95% confidence intervals (CI) were calculated using a random-effects model...
January 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28097758/alpha-blockers-in-the-management-of-ureteric-lithiasis-a-meta-analysis
#16
Nicholas Raison, Kamran Ahmed, Oliver Brunckhorst, Prokar Dasgupta
INTRODUCTION: Effective medical expulsion for ureteric stones with α-blockers offers numerous advantages over surgical alternatives. However, its effectiveness remains uncertain and with the publication of new trial data, the available evidence requires reappraisal. OBJECTIVE: The aim of this study was to assess the efficacy of α-blockers the management of ureteric lithiasis. METHODS: A systematic review of the literature, with predefined search criteria, was conducted using PubMed and Embase...
January 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28097444/obstetric-outcome-of-vanishing-twins-syndrome-a-systematic-review-and-meta-analysis
#17
REVIEW
Ling Sun, Ling X Jiang, Heng Z Chen
PURPOSE: Due to the high number of multiple embryo transfers into the uterus performed in assisted reproductive technology treatment (ART), the incidences of twin pregnancy and of vanishing twin syndrome (VTS) are correspondingly high. A number of studies have described the obstetric outcomes of the remaining fetus produced after the other twin had vanished compared with a singleton at the start following ART, but the results are mixed and contradictory. We performed a systematic review of the existing studies to explore the actual obstetric outcome of VTS to allow physicians to adequately advise their patients...
January 17, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28096749/evidence-based-information-needs-of-public-health-workers-a-systematized-review
#18
REVIEW
Jill Barr-Walker
OBJECTIVE: This study assessed public health workers' evidence-based information needs, based on a review of the literature using a systematic search strategy. This study is based on a thesis project conducted as part of the author's master's in public health coursework and is considered a systematized review. METHODS: Four databases were searched for English-language articles published between 2005 and 2015: PubMed, Web of Science, Library Literature & Information Science Index, and Library, Information Science & Technology Abstracts (LISTA)...
January 2017: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/28096283/laba-lama-combination-in-copd-a-meta-analysis-on-the-duration-of-treatment
#19
REVIEW
Luigino Calzetta, Paola Rogliani, Josuel Ora, Ermanno Puxeddu, Mario Cazzola, Maria Gabriella Matera
When there are no randomised clinical trials directly comparing all relevant treatment options, an indirect treatment comparison via meta-analysis of the available clinical evidence is an acceptable alternative. However, meta-analyses may be very misleading if not adequately performed. Here, we propose and validate a simple and effective approach to meta-analysis for exploring the effectiveness of long-acting β2-agonist (LABA)/long-acting muscarinic antagonist (LAMA) fixed-dose combinations in chronic obstructive pulmonary disease...
January 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/28096194/autologous-cell-therapy-for-peripheral-arterial-disease-systematic-review-and-meta-analysis-of-randomized-non-randomized-and-non-controlled-studies
#20
Mauro Rigato, Matteo Monami, Gian Paolo Fadini
RATIONALE: Critical limb ischemia (CLI) is a life-threatening complication of peripheral arterial disease (PAD). In patients who are ineligible for revascularization procedures, there are few therapeutic alternatives, leading to amputations and death. OBJECTIVE: To provide a systematic review of the literature and a meta-analysis of studies evaluating safety and efficacy of autologous cell therapy for intractable PAD/CLI. METHODS AND RESULTS: We retrieved 19 randomized controlled trials (RCTs; 837 patients), 7 non-randomized trials (338 patients), and 41 non-controlled studies (1,177 patients)...
January 17, 2017: Circulation Research
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