Fig. 4: Funnel plots with psychosis classification performance, broken down into subplots based on neuroimaging modality. | Molecular Psychiatry

Fig. 4: Funnel plots with psychosis classification performance, broken down into subplots based on neuroimaging modality.

From: A meta-analysis and systematic review of single vs. multimodal neuroimaging techniques in the classification of psychosis

Fig. 4

Note: these results are based on internal validation only, given the higher number of studies in this domain. The top row shows funnel plots for all original internal datasets, while the bottom row shows funnel plots after outlier exclusion. Each plot is centered on a fixed effect summary estimate, the outer dashed lines indicate the 95% confidence interval of the fixed effect estimates. Symmetry is apparent when all studies are randomly dispersed around the dashed vertical line. In contrast, each imaging group showed signs of funnel plot asymmetry. These observations were confirmed by formally testing the correlation between study size and effect estimates using the Egger’s test (p < .05).

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