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Characteristics associated with multivitamin use in pregnant women aged 18 to 44 years, in 14 states and U.S. territories,a BRFSS 2004
aIncludes Arizona, Colorado, Florida, Kentucky, Minnesota, Montana, Nebraska, North Carolina, North Dakota, Texas, Virginia, Wisconsin, Puerto Rico, and the U.S. Virgin Islands
BRFSS = Behavioral Risk Factor Surveillance System
CI = confidence interval
Ref. = reference group
