They found that the PRS N only had a significant association with the expression of depression in reared-together twins in their cohort of older individuals, whereas the results showed a trend toward statistical significance for neuroticism.
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Gene-environment interaction study on the polygenic risk score for neuroticism, childhood adversity, and parental bonding.
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The sentences
The marginally significant finding for the interaction between PRS N (GPC) and maternal bonding, which did not replicate with PRS N (UKB), possibly indicates that some interactions might have been detected if our sample had been larger.