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Confirmation bias

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https://www.readbyqxmd.com/read/27922877/diagnostic-accuracy-of-central-venous-catheter-confirmation-by-bedside-ultrasound-versus-chest-radiography-in-critically-ill-patients-a-systematic-review-and-meta-analysis
#1
Enyo A Ablordeppey, Anne M Drewry, Alexander B Beyer, Daniel L Theodoro, Susan A Fowler, Brian M Fuller, Christopher R Carpenter
OBJECTIVE: We performed a systematic review and meta-analysis to examine the accuracy of bedside ultrasound for confirmation of central venous catheter position and exclusion of pneumothorax compared with chest radiography. DATA SOURCES: PubMed, Embase, Cochrane Central Register of Controlled Trials, reference lists, conference proceedings and ClinicalTrials.gov. STUDY SELECTION: Articles and abstracts describing the diagnostic accuracy of bedside ultrasound compared with chest radiography for confirmation of central venous catheters in sufficient detail to reconstruct 2 × 2 contingency tables were reviewed...
December 5, 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27917522/genome-wide-survey-in-african-americans-demonstrates-potential-epistasis-of-fitness-in-the-human-genome
#2
Heming Wang, Yoonha Choi, Bamidele Tayo, Xuefeng Wang, Nathan Morris, Xiang Zhang, Uli Broeckel, Craig Hanis, Sharon Kardia, Susan Redline, Richard S Cooper, Hua Tang, Xiaofeng Zhu
The role played by epistasis between alleles at unlinked loci in shaping population fitness has been debated for many years and the existing evidence has been mainly accumulated from model organisms. In model organisms, fitness epistasis can be systematically inferred by detecting nonindependence of genotypic values between loci in a population and confirmed through examining the number of offspring produced in two-locus genotype groups. No systematic study has been conducted to detect epistasis of fitness in humans owing to experimental constraints...
December 5, 2016: Genetic Epidemiology
https://www.readbyqxmd.com/read/27916671/leftward-bias-in-orienting-to-and-disengaging-attention-from-salient-task-irrelevant-events-in-rapid-serial-visual-presentation
#3
Kamila Śmigasiewicz, Nicole Westphal, Rolf Verleger
When embedded in the left or right stream of rapidly changing distractors, the second target (T2) is systematically better identified on the left than on the right. This left visual field advantage (LVFA) was recently attributed to better abilities of the right hemisphere in stimulus-driven orienting of attention: it was almost absent when salient uninformative cues were valid (presented in the T2 stream), and increased with invalid (different-stream) cues. However, cue-evoked negativity of event related potentials being earlier at the right than at the left hemisphere suggested that cues also are unequally processed, thereby possibly contributing to increased LVFA after invalid cues...
December 1, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27912961/the-effect-of-chinese-herbal-medicine-on-hemorrhagic-shock-a-systematic-review-and-meta-analysis
#4
REVIEW
Da-Long Wang, Xiao-Guang Lu, Wen-Xiu Guo, Tuo Chen, Yi Song, Zhi-Wei Fan
BACKGROUND: Chinese herbal medicine (CHM) has been widely used in the treatment of hemorrhagic shock (HS) in China. Many controlled trials have been undertaken to investigate its efficacy. OBJECTIVE: To evaluate the effectiveness and safety of CHM for Hemorrhagic Shock patients. METHODS: We screening the Web of ScienceDirect database, PubMed, the Cochrane Library, EMBASE, China Biomedical Database web (CBM), China National Knowledge Infrastructure (CNKI) and WanFang database (WF), from inception to January 2015...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27911281/polymorphisms-in-promoter-regions-of-mmp-3-and-il-6-genes-are-not-associated-to-adolescent-idiopathic-scoliosis-ais-gender-bias
#5
Wenyuan Sui, Junlin Yang, Zifang Huang, Qifei Wang, Hengwei Fan, Yaolong Deng
STUDY DESIGN: A retrospective study in Chinese Han people. PURPOSE: To explore whether promoter polymorphisms of matrix metalloproteinases-3 (MMP-3) (rs3025058) and interleukin-6(IL-6) (rs1800795) genes are associated to AIS gender bias. METHODS: A total of 200 patients (100 boys and 100 girls) with AIS and 200 healthy age-matched adolescents were recruited from July 2008 to August 2013 in our scoliosis center. All AIS patients had Cobb angles larger than 20°, average 43 ± 3...
November 25, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27909778/it-is-all-about-the-solvent-on-the-importance-of-the-mobile-phase-for-zic-hilic-glycopeptide-enrichment
#6
Kathirvel Alagesan, Sana Khan Khilji, Daniel Kolarich
Glycopeptide enrichment is a crucial step in glycoproteomics for which hydrophilic interaction chromatography (HILIC) has extensively been applied due to its low bias towards different glycan types. A systematic evaluation of applicable HILIC mobile phases on glycopeptide enrichment efficiency and selectivity is, to date, however, still lacking. Here, we present a novel, simplified technique for HILIC enrichment termed "Drop-HILIC", which was applied to systematically evaluate the mobile phase effect on ZIC-HILIC (zwitterionic type of hydrophilic interaction chromatography) glycopeptide enrichment...
December 1, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27909684/traditional-versus-3-rna-seq-in-a-non-model-species
#7
Sophie Tandonnet, Tatiana Teixeira Torres
One limitation of the widely used RNA-seq method is that long transcripts are represented by more reads than shorter transcripts, resulting in a biased estimation of expression levels. The 3' RNA-seq method, which yields only one sequence per transcript, bypasses this limitation. Here, RNA was extracted from two samples, in which we expected to find differentially expressed genes. Each was processed by both traditional and 3' RNA-seq protocols. Both methods yielded similar differentially expressed genes and estimated expression levels in a comparable way, confirming they both represent valid tools for RNA-seq analysis...
March 2017: Genomics Data
https://www.readbyqxmd.com/read/27907025/measuring-social-motivation-using-signal-detection-and-reward-responsiveness
#8
Coralie Chevallier, Natasha Tonge, Lou Safra, David Kahn, Gregor Kohls, Judith Miller, Robert T Schultz
BACKGROUND: Recent trends in psychiatry have emphasized the need for a shift from categorical to dimensional approaches. Of critical importance to this transformation is the availability of tools to objectively quantify behaviors dimensionally. The present study focuses on social motivation, a dimension of behavior that is central to a range of psychiatric conditions but for which a particularly small number of assays currently exist. METHODS: In Study 1 (N = 48), healthy adults completed a monetary reward task and a social reward task, followed by completion of the Chapman Physical and Social Anhedonia Scales...
2016: PloS One
https://www.readbyqxmd.com/read/27906452/primary-prophylaxis-for-venous-thromboembolism-in-ambulatory-cancer-patients-receiving-chemotherapy
#9
REVIEW
Marcello Di Nisio, Ettore Porreca, Matteo Candeloro, Michele De Tursi, Ilaria Russi, Anne Ws Rutjes
BACKGROUND: Venous thromboembolism (VTE) often complicates the clinical course of cancer. The risk is further increased by chemotherapy, but the trade-off between safety and efficacy of primary thromboprophylaxis in cancer patients treated with chemotherapy is uncertain. This is the second update of a review first published in February 2012. OBJECTIVES: To assess the efficacy and safety of primary thromboprophylaxis for VTE in ambulatory cancer patients receiving chemotherapy compared with placebo or no thromboprophylaxis...
December 1, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27905455/academia-must-resist-political-confirmation-bias
#10
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
November 29, 2016: Nature
https://www.readbyqxmd.com/read/27903984/association-between-xrcc1-polymorphisms-and-the-risk-of-cervical-cancer-a-meta-analysis-based-on-4895-subjects
#11
Xianling Zeng, Yafei Zhang, Ting Yue, Taohong Zhang, Junxia Wang, Yan Xue, Ruifang An
The present meta-analysis was intended to explore the relationship between the x-ray repair cross complementing 1 (XRCC1) polymorphisms (Arg194Trp, Arg280His and Arg399Gln) and cervical cancer risk. Several electronic databases were searched systematically and bibliographies of relevant papers were identified carefully. Then, a meta-analysis was performed based on eligible studies in various genetic models. Pooled odds ratios (OR) with 95% confidence intervals (95% CI) were employed to evaluate the strength of associations between the XRCC1 polymorphisms and cervical cancer risk...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27903128/postoperative-outcome-of-body-core-temperature-rhythm-and-sleep-wake-cycle-in-third-ventricle-craniopharyngiomas
#12
Matteo Zoli, Luisa Sambati, Laura Milanese, Matteo Foschi, Marco Faustini-Fustini, Gianluca Marucci, Dario de Biase, Giovanni Tallini, Annagrazia Cecere, Francesco Mignani, Carmelo Sturiale, Giorgio Frank, Ernesto Pasquini, Pietro Cortelli, Diego Mazzatenta, Federica Provini
OBJECTIVE One of the more serious risks in the treatment of third ventricle craniopharyngiomas is represented by hypothalamic damage. Recently, many papers have reported the expansion of the indications for the endoscopic endonasal approach (EEA) to be used for these tumors as well. The aim of this study was to assess the outcome of sleep-wake cycle and body core temperature (BCT), both depending on hypothalamic control, in patients affected by craniopharyngiomas involving the third ventricle that were surgically treated via an EEA...
December 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27902481/association-of-smoking-status-with-prognosis-in-bladder-cancer-a-meta-analysis
#13
Lina Hou, Xuwei Hong, Meng Dai, Pengliang Chen, Hongfan Zhao, Qiang Wei, Fei Li, Wanlong Tan
There is considerable controversy regarding the association between smoking and prognosis in surgically treated bladder cancer. The present meta-analysis was performed to quantify the role of smoking status in bladder cancer recurrence, progression and patient survival by pooling the available previous data. Pubmed, Embase and the Cochrane Library databases were searched for eligible studies published prior to April 2016. Random and fixed effects models were used to calculate the summary relative risk estimates (SRRE)...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900215/drug-treatment-of-bothersome-lower-urinary-tract-symptoms-after-ureteric-jj-stent-insertion-a-contemporary-comparative-prospective-randomised-placebo-controlled-study-single-centre-experience
#14
Ihab A Hekal
OBJECTIVE: To provide a guide for medication to alleviate bothersome lower urinary tract symptoms (LUTS) in patients after JJ ureteric stenting. PATIENTS AND METHODS: Between June 2011 and June 2015, a prospective randomised placebo-controlled study was conducted on 200 consecutive cases of ureteric stones that required JJ stents. All patients had signed informed consent and JJ-stent placement confirmed by X-ray. The patients were randomised into five groups: A, solifenacin 5 mg; B, trospium chloride 20 mg; C, antispasmodic; and E, α-blocker; and a placebo group (D)...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27899709/the-art-of-camouflage-gender-differences-in-the-social-behaviors-of-girls-and-boys-with-autism-spectrum-disorder
#15
Michelle Dean, Robin Harwood, Connie Kasari
This study examined the extent to which gender-related social behaviors help girls with autism spectrum disorder to seemingly mask their symptoms. Using concurrent mixed methods, we examined the social behaviors of 96 elementary school children during recess (autism spectrum disorder = 24 girls and 24 boys, typically developing = 24 girls and 24 boys). Children with autism spectrum disorder had average intelligence (IQ ⩾ 70), a confirmed diagnosis, and were educated in the general education classroom...
November 29, 2016: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/27899100/clinical-determinants-of-the-severity-of-middle-east-respiratory-syndrome-mers-a-systematic-review-and-meta-analysis
#16
Ryota Matsuyama, Hiroshi Nishiura, Satoshi Kutsuna, Kayoko Hayakawa, Norio Ohmagari
BACKGROUND: While the risk of severe complications of Middle East respiratory syndrome (MERS) and its determinants have been explored in previous studies, a systematic analysis of published articles with different designs and populations has yet to be conducted. The present study aimed to systematically review the risk of death associated with MERS as well as risk factors for associated complications. METHODS: PubMed and Web of Science databases were searched for clinical and epidemiological studies on confirmed cases of MERS...
November 29, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27895498/meta-analysis-of-outcomes-of-patients-with-stage-iv-colorectal-cancer-managed-with-chemotherapy-radiochemotherapy-with-and-without-primary-tumor-resection
#17
Ko-Chao Lee, Yu-Che Ou, Wan-Hsiang Hu, Chia-Cheng Liu, Hong-Hwa Chen
BACKGROUND: Colorectal cancer is the third leading cause of death worldwide. Currently, novel chemotherapeutic agents are first-line therapy for unresectable stage IV colorectal cancer, while benefits of noncurative primary tumor resection in advanced disease remain debatable. OBJECTIVE: This meta-analysis evaluated outcomes of patients with unresectable stage IV colorectal cancer receiving systemic chemotherapy with or without primary tumor resection. MATERIALS AND METHODS: A database search of PubMed and Cochrane Library databases identified 167 studies that were screened for relevance...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27892626/withdrawn-root-canal-posts-for-the-restoration-of-root-filled-teeth
#18
REVIEW
Marc Bolla, Michele Muller-Bolla, Cybele Borg, Laurence Lupi-Pegurier, Olivier Laplanche, Eric Leforestier
BACKGROUND: The foundation for the reconstruction of endodontically-treated teeth can be provided by a metal or a non-metal post and core system but no guidelines exist for choosing one or the other in particular clinical cases. OBJECTIVES: To assess the effectiveness of different post and core systems for the restoration of endodontically-treated teeth. The primary objective of this review was to compare the clinical failure rates of the different types of posts...
November 28, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27891515/the-association-between-vdr-gene-polymorphisms-and-diabetic-retinopathy-susceptibility-a-systematic-review-and-meta-analysis
#19
Yun Zhang, Wei Xia, Ping Lu, Huijuan Yuan
Aims. Studies on the associations of vitamin D receptor (VDR) gene polymorphisms with diabetic retinopathy (DR) susceptibility reported conflicting results. A systematic meta-analysis was undertaken to clarify this topic. Methods. A systematic search of electronic databases (PubMed, EMBASE, and CNKI) was carried out until March 31, 2016. The pooled odds ratio (OR) and 95% confidence interval (CI) were used to assess the strength of the association. Results. A total of 7 studies fulfilling the inclusion criteria were included in this meta-analysis (649 cases and 707 controls)...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27890113/meprocs-framework-for-craniofacial-superimposition-validation-study
#20
O Ibáñez, R Vicente, D Navega, C Campomanes-Álvarez, C Cattaneo, R Jankauskas, M I Huete, F Navarro, R Hardiman, E Ruiz, K Imaizumi, F Cavalli, E Veselovskaya, D Humpire, J Cardoso, F Collini, D Mazzarelli, D Gibelli, S Damas
Craniofacial Superimposition (CFS) involves the process of overlaying a skull with a number of ante-mortem images of an individual and the analysis of their morphological correspondence. The lack of unified working protocols and the absence of commonly accepted standards, led to contradictory consensus regarding its reliability. One of the more important aims of 'New Methodologies and Protocols of Forensic Identification by Craniofacial Superimposition (MEPROCS)' project was to propose a common framework for CFS, what can be considered the first international standard in the field...
November 2016: Legal Medicine
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