Table 4.

Associations between Interpersonal Trauma Exposure and Child Cognitive Scores from 24 to 96 Months: Final Mixed Effects Model

Variable	Parameter Estimate	Standard Error	p-Value
IPT exposure, 0-24 months	−7.25	2.30	0.002
IPT exposure, 24-64 months	−0.37	1.82	0.84
Timea	−0.04	0.04	0.31
Genderb	4.85	1.63	0.003
Race/ethnicityc	−0.39	1.81	0.83
SESd	0.17	0.07	0.02
Maternal IQ (WAIS)	0.52	0.12	<0.0001
Birthweight	0.01	0.002	0.0007
Birth complications	0.23	1.78	0.90
Cognitive stimulation in the home	1.27	0.43	0.003

Notes. IPT = interpersonal trauma exposure; IQ = intelligence quotient; SES = socioeconomic status; WAIS = Wechsler Adult Intelligence Scale.

^aThe time term tested whether there were differences in mean cognitive scores over time.

^bMales are the reference group.

^cWhite, Non-Hispanic children are the reference group.

^dSES during pregnancy was used for predicting 24-month cognitive scores, SES at 42 months for predicting 64-month cognitive scores, and SES at 96 months for predicting 96-month cognitive scores.