Misleading funnel plot for detection of bias in meta-analysis

Ref ID 340
First Author J.-L. Tang
Journal JOURNAL OF CLINICAL EPIDEMIOLOGY
Year Of Publishing 2000
URL https://www.jclinepi.com/article/S0895-4356(99)00204-8/fulltext
Keywords Cochrane
Publication bias
Heterogeneity
General medical
Problem(s) Inadequate analysis of heterogeneity
Number of systematic reviews included 198
Summary of Findings 61.6% of meta-analyses consistently showed a symmetrical funnel plot. The funnel plots differed when different definitions of precision and/or effect measures were used. The plot became symmetrical in 86.0% of the 43 meta-analyses when a different definition of precision and/or effect measure were used.
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? Not Applicable
Are the methods of the article described in enough detail to replicate the study? No