Table 2.

Simple Slopes Analysis for the Maternal Perceived Stress × Prenatal PAH Exposure Interaction Effect on CA1, CA3, and CA4/Dentate Gyrus Subfield Volumes

Subfields	PAH Exposure	B	SE	t	p	95% CI
CA1	Lower	−0.13	0.18	−0.70	.487	−0.50 to 0.24
	Higher	−0.81	0.24	−3.34	.002	−1.30 to −0.32
CA3	Lower	−0.12	0.17	−0.71	.484	−0.47 to 0.23
	Higher	−0.94	0.23	−4.12	<.001	−1.40 to −0.47
CA4/Dentate Gyrus	Lower	−0.10	0.19	−0.53	.598	−0.48 to 0.28
	Higher	−0.78	0.25	−3.13	.004	−1.29 to −0.27

Each simple slope was independently tested for significance using a t test (n = 37: n_higher = 19, n_lower = 18).

PAH, polycyclic aromatic hydrocarbon.