Fig. 1: Boxplot of hippocampal volumes for children with CHD and controls plotted separately.
From: Hippocampal volume and cognitive performance in children with congenital heart disease

The boxplots illustrate hippocampal volume in cm^3 plotted for controls and children with CHD separately. In a linear regression model, controlling for sex, age and SES, hippocampal volume was significantly smaller in children with CHD compared to controls (P = 0.003).