Strong link found between emotional childhood abuse and schizophrenia-like experiences in adulthood PLOSONE
Age was a significant moderator of the effect sizes for sexual abuse and emotional neglect. Effect sizes for sexual abuse were larger in younger participants while those for emotional neglect were larger in older participants. Gender moderated the association between physical abuse and schizotypy, with larger associations in studies with more women participants.
We also looked at a multiple predictor meta-regression model including age and gender to predict the relationship between childhood trauma and schizotypy and the results did not change. Gender continued to moderate the impact of physical abuse on schizotypy , while age was ns . Age was a significant predictor of the sexual-abuse-schizotypy relationship, while gender was not .
Our assessment indicated that the mean study quality ranking was marginally lower than the suggested cut-off for individual studies to be identified as methodologically robust [see]. Hence, most studies failed to meet the suggested cut-off. We also note that study quality has remained relatively low across time, with no signs of any recent increase. Despite this, study quality was not a significant moderator of the relationship between schizotypy and any of form of abuse or neglect.
The studies were well-powered–taking the smallest effect size being 0.2 would require 150 participants to detect at 80% power. All studies included in the meta-analyses except two [
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