Funnel plot 5 is a scatterplot that explores potential publication bias for studies comparing haloperidol versus olanzapine for core symptoms and total score on the BPRS scale. The mean difference is plotted along the X-axis and standard error is plotted along the Y-axis. The point estimate of the BPRS scale for each study is represented by a square dot. A broken line, which represents the point estimate of the meta-analysis is positioned at 0.59 on the mean difference scale. The funnel plot is symmetrical, indicating no publication bias.

Funnel plot 5Haloperidol versus olanzapine–Core symptoms (Sz)–Total score–BPRS scale

BPRS = Brief Psychiatric Rating Scale; MD = Mean Difference; SE = Standard Error; Sz = schizophrenia

Begg and Mazumdar rank correlation: p = 0.86; Egger’s regression intercept: p = 0.49

From: Appendix K, Funnel Plots

Cover of First-Generation Versus Second-Generation Antipsychotics in Adults: Comparative Effectiveness
First-Generation Versus Second-Generation Antipsychotics in Adults: Comparative Effectiveness [Internet].
Comparative Effectiveness Reviews, No. 63.
Abou-Setta AM, Mousavi SS, Spooner C, et al.

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