Risk factor		Statistics
Black8		Prevalence in white women: 7.1 percent; prevalence in black women: 25.1 percent
Blood donation more than two units per year in women and three units per year in men9		No statistics given
Low socioeconomic status and postpartum status10		Zero to six months postpartum: OR, 4.1; seven to 12 months postpartum: OR, 3.1
Mexican ethnicity living in the United States11		OR, 1.8
Child and adolescent obesity12
	BMI ≥ 85% and < 95% percentile	OR, 2.0 (95% CI, 1.2 to 3.5)
	BMI ≥ 95% percentile	OR, 2.3 (95% CI, 1.4 to 3.9)
Vegetarian diet13		40 percent of vegans 19 to 50 years of age were iron deficient