2006
DOI: 10.1002/pd.1568
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Single large study or meta-analysis parameters: choosing the most appropriate tool for Down syndrome screening in the first trimester

Abstract: This study highlights the importance of selecting appropriate population parameters when insufficient DS cases are available in the study population. When screening for DS in singleton pregnancies during the first trimester, the use of population parameters derived from single large studies produced better test characteristics.

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Cited by 13 publications
(9 citation statements)
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“…Potential publication bias was estimated using Egger's linear regression test with funnel plot [18]. Sensitivity analyses were assessed by deleting each study to reflect the influence of individual datasets on the pooled ORs [19]. Statistical analysis was performed using STATA version 11.0 (Stata Corporation, College Station, TX, USA) with two-sided P values.…”
Section: Methodsmentioning
confidence: 99%
“…Potential publication bias was estimated using Egger's linear regression test with funnel plot [18]. Sensitivity analyses were assessed by deleting each study to reflect the influence of individual datasets on the pooled ORs [19]. Statistical analysis was performed using STATA version 11.0 (Stata Corporation, College Station, TX, USA) with two-sided P values.…”
Section: Methodsmentioning
confidence: 99%
“…Sensitivity analysis was conducted by elimination of a single research involved in the meta-analysis each time. 37 If there were 10 or more studies, publication bias was evaluated by Begg's test and Egger's linear regression. When publication bias was found, Duval and Tweedie's 38 trim and fill procedure was performed.…”
Section: Analysis Of Variablesmentioning
confidence: 99%
“…Otherwise, the random-effects model (the DerSimonian and Laird method) was applied. The stability of the meta-analysis' results was accessed by performing one-way sensitivity analyses (Ramos-Corpas and Santiago, 2006), and publication bias was evaluated with Egger's linear regression test by visual inspection of the funnel plot (Egger et al, 1997).…”
Section: Statistical Analysesmentioning
confidence: 99%