TABLE 3.

Logistic regression model of ID (SF concentration <15 μg/L) in HEIRS women aged 25–44 y¹

	OR (95% CI)	P
Nonpregnant and nonbreastfeeding
Hispanic American	1.8 (1.6, 2.0)	<0.001
African American	1.6 (1.5, 1.8)	<0.001
Age, y	1.02 (1.01, 1.03)	<0.001
Asian American	0.85 (0.72, 1.00)	0.049
HFE C282Y (wildtype, heterozygote, and homozygote)	0.84 (0.69, 1.01)	0.060
Pregnant or breastfeeding
African American	0.6 (0.4, 0.8)	0.001
Age, y	0.96 (0.93, 0.98)	0.001
Asian American	0.5 (0.3, 0.9)	0.009
HFE C282Y (wildtype, heterozygote, and homozygote)	0.6 (0.4, 0.9)	0.017

¹Logistic regression models were used to identify independent associations with measures of low iron stores that were indicative of ID. P < 0.05 was considered to be significant. HEIRS, Hemochromatosis and Iron Overload Screening; HFE, hemochromatosis gene; ID, iron deficiency; SF, serum ferritin.