Cortical porosity assessments. A) Total porosity was decreased for GF males compared to conventional males but was unchanged in females. B) Lacunar porosity, C) vascular porosity, and D) pore number density were unchanged with sex and GF. Boxplots represent median value (cross), interquartile range (box), minimum/maximum (whiskers), and symbols representing all data points. All p-values correspond with results of the omnibus ANOVA test, unless specifically indicated with symbol # which indicates a pairwise post-hoc test following a significant interaction.