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The association between SMD and mean HAM-D score of the depressed group in each study.
Notes: A greater SMD in lipid peroxidation between depressed and control groups was associated with greater depressive symptom severity in the depressed group. Summary statistics: circles represent nine studies, N=445 depressed. B=0.05, df=8, P<0.01, residual heterogeneity: adjusted I2=36.7%.
Abbreviations: HAM-D, Hamilton Depression Rating Scale; SMD, standardized mean difference.
