Fig. 4

Interactions between C4A GREx and polygenic risk for schizophrenia. The interaction between C4A GREx and schizophrenia PRS was not a significant predictor of entorhinal cortex surface area in 9–10-year-old youth of European ancestry (N = 3349); higher C4A GREx was associated with smaller entorhinal cortex surface area across all levels of PRS