Using Capture-Recapture Method to Assess Publication Bias
Author Information
Author(s): Poorolajal Jalal, Haghdoost Ali Akbar, Mahmoodi Mahmood, Majdzadeh Reza, Nasseri-Moghaddam Siavosh, Fotouhi Akbar
Primary Institution: Tehran University of Medical Sciences
Hypothesis
Can the capture-recapture method effectively measure the amount of publication bias in systematic reviews?
Conclusion
The capture-recapture method is a practical approach for estimating the number of missing studies that are not usually detected by search strategies.
Supporting Evidence
- The completeness of the overall search results was 87.2%.
- The log-linear model suggested 5 missing studies.
- The funnel plot was asymmetric, indicating potential publication bias.
- Begg and Egger tests showed no statistically significant publication bias.
- Checking reference lists was more sensitive for finding references than other sources.
Takeaway
This study shows a way to find missing research papers that might not be included in reviews, helping to make sure we have all the information.
Methodology
A systematic review was conducted using capture-recapture and conventional methods to assess publication bias.
Potential Biases
The method's validity depends on the independence of sources, which may not always be met.
Limitations
The capture-recapture method requires high overlapping information and a large number of studies to produce reliable estimates.
Participant Demographics
Healthy participants vaccinated with hepatitis B vaccine.
Statistical Information
P-Value
0.3767
Confidence Interval
[95% CI: 84.6% to 89.0%]
Statistical Significance
p<0.10
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