Table 5.

Regression Model of Peak Iron Deficiency Anemia Exposure and Covariates with Four-Year Cognitive Outcomes

	Verbal IQ (n = 122)			Performance IQ (n = 122)			Full Scale IQ (n = 122)
Predictor variables	β	SD	p	β	SD	p	β	SD	p
Maternal IQ	0.004	0.07	0.952	0.2	0.07	0.016*	0.10	0.07	0.130
Cocaine exposure	−1.2	2.2	0.581	−5.4	2.4	0.027*	−3.5	2.3	0.128
Gender	−3.2	2.2	0.141	−3.7	2.4	0.133	−3.6	2.3	0.109
Lead	−0.4	0.3	0.172	−1.0	0.3	0.0001*	−0.7	0.3	0.012*
IDA	−6.9	3.9	0.078	−7.9	4.3	0.068	−8.1	4.0	0.047*
HOME	0.5	0.2	0.012*	0.2	0.2	0.438	0.4	0.2	0.066
Intercept	64.3	9.8	0.000*	79.1	10.9	0.000*	67.6	10.2	0.000*

IDA, Iron Deficiency Anemia; HOME, Home Observation of the Environment.

^*Significant at p < 0.05.