Table 2

-Result of the classic fail-safe N (detection of publication bias). Publication Bias Assessment (publication bias).

Test vameValueP-value
Fail-Safe N3070.001
Begg and Mazumdar Rank Correlation0.1280.590
Egger’s Regression-0.1020.918
Trim and Fill Number of Studies1.000 
Fail-safe N calculation using the Rosenthal approach.