reporting bias
Reporting Bias of Dampness Problems and Smoking—A Result of Study Design
... Low response rates are a risk to the quality and validity of the results in the study and can result in systematic errors that might affect the results. One problem is selection bias, when i.e. parents to allergic ...
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Can UK NHS research ethics committees effectively monitor publication and outcome reporting bias?
... Background: Publication and outcome reporting bias is often caused by researchers selectively choosing which scientific results and outcomes to publish. This behaviour is ethically significant as it ...
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The strong focus on positive results in abstracts may cause bias in systematic reviews: a case study on abstract reporting bias
... abstract reporting bias be most likely to occur? We believe that it is not likely to occur if a cer- tain association is generally believed to exist, such as in the case of smoking and lung ...abstract ...
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A test for reporting bias in trial networks: simulation and case studies
... of reporting bias in a net- work ...exchangeable bias, a posterior mean slope is estimated and indicates the extent of small-study effect across the ...novelty bias, can be modeled with ...
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Mental Health and Reporting Bias: Analysis of the GHQ - 12
... Measures of mental wellbeing are heavily relied upon to identify at-risk indi- viduals. However, self-reported mental health metrics might be unduly a¤ected by mis-reporting (perhaps stemming from stigma e¤ects). ...
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Selective reporting bias of harm outcomes within studies: findings from a cohort of systematic reviews
... in reviews that dealt with only pooled harms because there would be no way to assess whether specific harms may have been excluded from the eligible studies when calculating “all harms.” Moreover, we discovered that ...
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Assessing the potential for outcome reporting bias in a review: a tutorial
... This work is important in raising awareness of the problem of outcome reporting bias and the importance of assessing ORB within a review and corresponding trial reports. Clinical trials registers and the ...
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Systematic Review of the Empirical Evidence of Study Publication Bias and Outcome Reporting Bias - An Updated Review
... of reporting and discrepancies of outcomes but no information about the results is currently ...publication bias and outcome reporting bias, however more work needs to be done to examine ...
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Reporting bias in medical research a narrative review
... Rosiglitazone The US cardiologist Steven Nissen com- mented on safety issues surrounding rosiglitazone, a thi- azolidinedione used to treat type 2 diabetes. After the drug's approval, the FDA was informed in August 2005 ...
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Application and investigation of a bound for outcome reporting bias.
... (Outcome Reporting Bias In Trials) project, funded by the UK Medical Research Council, will attempt to further our understanding of the processes resulting in selective outcome reporting through ...
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Application and investigation of a bound for outcome reporting bias
... (Outcome Reporting Bias In Trials) project, funded by the UK Medical Research Council, will attempt to further our understanding of the processes resulting in selective outcome reporting through ...
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Adjustment for reporting bias in network meta-analysis of antidepressant trials
... the magnitude of the association of effect size and preci- sion (ie, the “small-study effect”), and the intercept pro- vides an adjusted pooled effect size (ie, the predicted effect size of a trial with infinite ...
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Managing the incidence of selective reporting bias: a survey of Cochrane review groups
... The survey was distributed to the 52 Cochrane review groups who conduct reviews of clinical interventions ex- cluding only the Methodology Review Group. The man- aging and coordinating editor(s) in each group were ...
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Do simple screening statistical tools help to detect reporting bias?
... on two groups of 25 patients (Additional file 2). We chose this paper because it is known to be fraudulent and it was retracted by the Editor-in-Chief of the journal in 2010 [11]. To perform our retrospective ...
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Application and investigation of a bound for outcome reporting bias
... Table 2 shows the categories for reason for withdrawal recorded in SANAD, together with whether the withdrawal was coded as an event, and if so the reason for withdrawal ISC or UAE, or a[r] ...
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Rethinking the assessment of risk of bias due to selective reporting: a cross-sectional study
... A strength of our study is that we examined a large cohort of Cochrane reviews, which comprised all reviews published during a specific period (rather than a non- randomly selected sample). Further, collection of data on ...
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Using vignettes in qualitative research to explore barriers and facilitating factors to the uptake of prevention of mother-to-child transmission services in rural Tanzania: a critical analysis
... The potential for reporting bias in studies on barriers to PMTCT service use in sub-Saharan Africa has been noted [29], and in our study setting, under-reporting by women of other social[r] ...
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Volume 38 - Article 55 | Pages 1663–1698
... common reporting bias that can be addressed to some extent with intensive training and supervision during fieldwork – regardless of questionnaire design (Pullum and Becker ...
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When to include clinical study reports and regulatory documents in systematic reviews
... to reporting bias, lack of transparency and lack of detail in journal publications may prevent or hinder detailed analyses of data which could be relevant to specific subpopulations potentially benefiting ...
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Effect of metformin on maternal and neonatal outcomes in pregnant obese non-diabetic women: A meta-analysis
... Selective reporting (Reporting bias) Low All outcomes were reported in a pre-specified protocol. Other bias Low No other sources of bias could be detected.. PRISMA flow diagram of st[r] ...
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