birth weight was relatively stable among children born to intervention group mothers across all levels of cortisol; in contrast, birth weight was negatively associated with cortisol for control mothers with moderate to high levels of cortisol. To assess whether the effect on birth weight might be attributable to premature birth (see below), we ran an additional model including a control for the number of weeks the child was born premature. Results showed that cortisol moderation was non-significant when controlling for weeks of prematurity.