The role of the funnel plot in detecting publication and related biases in meta-analysis

Liu, Joseph L. Y.

doi:10.1038/sj.ebd.6400831

Cited by 85 publications

(80 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A p value of <0.1 was considered as indicative of statistically significant publication bias. We also performed sensitivity analysis to identify heterogeneity of studies [18][19][20]. For the analysis of associated factors, the reported odds ratio, 95% confidence interval, and p value were used.…”

Section: Data Synthesis and Statistical Analysismentioning

confidence: 99%

Prevalence and Factors Associated with Current Cigarette Smoking among Ethiopian University Students: A Systematic Review and Meta-Analysis

Guracho

Addis

Tafere

et al. 2020

Journal of Addiction

View full text Add to dashboard Cite

Background. Although tobacco use is highest in high-income countries, most tobacco-related deaths occur in low- and middle-income countries with the highest number of deaths recorded in East Africa. The aim of this systematic review and meta-analysis is to determine the pooled prevalence and associated factors of current cigarette smoking among Ethiopian university students. Methods. The authors searched databases from PubMed, PsycINFO, Google Scholar, EMBASE, and Web of Sciences. The publications included in the analysis were inclusive, the literature was searched from January 2011 to December 2018. The JBI-MAStARI critical appraisal tool was applied to 13 publications identified by the database search. I2 statistics were used to indicate heterogeneity. Publication bias was evaluated using the visual funnel plot. A p value < 0.1 was considered as indicative of statistically significant publication bias. A random effect meta-analysis model was computed to estimate the pooled prevalence of cigarette smoking, and the variables associated with cigarette smoking were examined. Results. The meta-analysis of 13 studies showed that the pooled prevalence of current cigarette smoking was found to be 12.55% (95% CI: 10.39–14.72; I2 = 94.0%) with no publication bias according to Egger’s test (p=0.007) for cigarette smoking by 2.05 (95% CI: 1.52–2.75). Factors associated with cigarette smoking were peer influence 2.79 (95% CI: 1.62–4.82; I2 = 35.7), khat chewing (95% CI: 2.81–15.26; I2 = 82.5), and alcohol use 11.16 (95% CI: 7.46–16.71). Conclusion. Our findings indicate a high prevalence of cigarette smoking among Ethiopian university students as compared to the general population. Gender, peer influence, khat chewing, and current alcohol use were significantly associated with cigarette smoking. The authors recommend promoting antismoking campaigns, emphasizing health hazard public service announcements about cigarettes, and integrating health education on smoking in youth-friendly services, especially targeting higher educational institutions.

show abstract

Section: Data Synthesis and Statistical Analysismentioning

confidence: 99%

Prevalence and Factors Associated with Current Cigarette Smoking among Ethiopian University Students: A Systematic Review and Meta-Analysis

Guracho

Addis

Tafere

et al. 2020

Journal of Addiction

View full text Add to dashboard Cite

show abstract

“…41 I2 values greater than 50% were considered as indicative of substantial heterogeneity. Evidence of publication bias was assessed using visual inspection of the symmetry in funnel plot 42 and egger test. 43 Sensitivity analysis was also conducted to examine influential study.…”

Section: Magnitude Of Medication Administration Errorsmentioning

confidence: 99%

The Magnitude of Medication Administration Errors among Nurses in Ethiopia: a Systematic Review and Meta-analysis

Bifftu

Mekonnen

2020

J Caring Sci

View full text Add to dashboard Cite

Introduction: Nurses are the final safety check in the process of medication administration process to prevent errors that adversely affect life; yet death of comprehensive evidences in Ethiopia. The present study aimed to assess the pooled magnitude of MAEs (Medication Administration Errors) in Ethiopia. Methods: Systematic literature search in the databases of Pub-Med, Cochrane, and Google Scholar for gray literature were performed until December 3, 2018. The quality of study was assessed using criteria adopted from similar studies. Heterogeneity test and evidence of publication bias were assessed. Moreover, sensitivity analysis was also performed. Pooled prevalence of MAE was calculated using the random effects model. Results: A total of 2142 medication administrations were from observational and 681from selfreported studies were included in this systematic review and meta-analysis. The most prevalent and frequently reported type of MAEs was documentation error (52% to 87.5%) and time error (25.5% to 58.5%) respectively. Overall, the pooled magnitude of MAE was found to be 39.3% (95% CI, 29.1%-49.5%).It has no evidence of significant heterogeneity (I2 = 0%, P = 0.57) and publication bias Egger’s test (P = 0.40). Conclusion: Overall, more than one in four observed/perceived medication administrations had errors. Documentation error is the most prevalent type of error. Nurses are suggested to strengthen their focus on the rights of medication administration guide particularly, documentation of their activities need special attention.

show abstract

“…Funnel plots will be used to assess publication bias [28] and in addition Egger's regression test (p<0.05) [29] and Beggs equations will be computed to declare publication bias. Double arsine transformation will be used in case of variance instability [30].…”

Section: Data Synthesismentioning

confidence: 99%

Epidemiology of work-related musculo-skeletal disorders among adults in Ethiopia: a systematic review protocol

Gebreyesus¹,

Janakiraman²,

Nigussie³

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Musculoskeletal disorders among the working population are a major public health problem, resulting in significant personal and national economic loss. However, in Ethiopia, the cloud of infectious and non-communicable diseases has led to a lack of attention to work-related musculoskeletal disorders and empirical under-representation. This systematic review and metaanalysis will provide the pooled prevalence of musculoskeletal disorders and its determinant factors among the adult working population in Ethiopia.Method: The electronic databases MEDLINE, PubMed, CINAHL, Science Direct index, SCOPUS, PEDro, and Google Scholar will be systematically searched. In addition, the grey literature resources such as databases or websites of dissertations and theses will be searched. The reference list of screened articles will also be hand searched. All observational studies reporting on the prevalence of workrelated musculoskeletal pain of any bodily region among adult Ethiopians will be included. Random and quality effects models will be used to calculate pooled prevalence with a 95 % confidence

show abstract

The role of the funnel plot in detecting publication and related biases in meta-analysis

Cited by 85 publications

References 30 publications

Prevalence and Factors Associated with Current Cigarette Smoking among Ethiopian University Students: A Systematic Review and Meta-Analysis

Prevalence and Factors Associated with Current Cigarette Smoking among Ethiopian University Students: A Systematic Review and Meta-Analysis

The Magnitude of Medication Administration Errors among Nurses in Ethiopia: a Systematic Review and Meta-analysis

Epidemiology of work-related musculo-skeletal disorders among adults in Ethiopia: a systematic review protocol

Contact Info

Product

Resources

About