Modeled graph of the association between 1st and 3rd trimester (Tri) gestational cortisol exposure (GCE) on marmoset offspring’s pre- and post-stressor basal (BL) and cortisol (µg/mg Cr) reactivity, that is, change in urinary cortisol over time in H (hours), at 6, 12, and 18 M (months) of age after controlling for offspring sex and individual differences in HPA activity across age and time. High and low GCE reflect modeled cortisol reactivity change over time for upper and lower quartiles of GCE.