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Are birth defects among Hispanics related to maternal nativity or number of years lived in the United States?
Journal article   Peer reviewed

Are birth defects among Hispanics related to maternal nativity or number of years lived in the United States?

Tunu Ramadhani, Vanessa Short, Mark A Canfield, D Kim Waller, Adolfo Correa, Marjorie Royle, Angela Scheuerle and National Birth Defects Prevention Study (NBDPS)
Birth defects research. A Clinical and molecular teratology, Vol.85(9), pp.755-763
09/2009
DOI: 10.1002/bdra.20584
PMID: 19350653

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Abstract

Literature on the risk of birth defects among foreign- versus U.S.-born Hispanics is limited or inconsistent. We examined the association between country of birth, immigration patterns, and birth defects among Hispanic mothers. We used data from the National Birth Defects Prevention Study and calculated odds ratios (ORs) and 95% confidence intervals and assessed the relationship between mothers' country of birth, years lived in the United States, and birth defects among 575 foreign-born compared to 539 U.S.-born Hispanic mothers. Hispanic mothers born in Mexico/Central America were more likely to deliver babies with spina bifida (OR = 1.53) than their U.S.-born counterparts. Also, mothers born in Mexico/Central America or who were recent United States immigrants (< or =5 years) were less likely to deliver babies with all atrial septal defects combined, all septal defects combined, or atrial septal defect, secundum type. However, Hispanic foreign-born mothers who lived in the United States for >5 years were more likely to deliver babies with all neural tube defects combined (OR = 1.42), spina bifida (OR = 1.89), and longitudinal limb defects (OR = 2.34). Foreign-born mothers, regardless of their number of years lived in the United States, were more likely to deliver babies with anotia or microtia. Depending on the type of birth defect, foreign-born Hispanic mothers might be at higher or lower risk of delivering babies with the defects. The differences might reflect variations in predisposition, cultural norms, behavioral characteristics, and/or ascertainment of the birth defects.
Adult Central America - ethnology Congenital Abnormalities - ethnology Emigration and Immigration Female Heart Septal Defects, Atrial - ethnology Hispanic Americans Humans Maternal Exposure - adverse effects Mexico - ethnology Residence Characteristics Spinal Dysraphism - ethnology United States - epidemiology Young Adult

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