Keila N Lopez1, Wendy N Nembhard2, Ying Wang3, Gang Liu4, James E Kucik5, Glenn Copeland6, Suzanne M Gilboa7, Russell S Kirby8, Mark Canfield9. 1. Division of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas. 2. Arkansas Reproductive Health Monitoring System, Arkansas Children's Research Institute & University of Arkansas for Medical Sciences, Little Rock, Arkansas. 3. Division of Data Analysis and Research, Office of Primary Care and Health System Management, New York State Department of Health, New York, New York. 4. Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, State University of New York, Albany, New York. 5. Office of the Associate Director for Policy, Centers for Disease Control and Prevention, Atlanta, Georgia. 6. Michigan Department of Health and Human Services, Michigan Birth Defects Registry, Lansing, Michigan. 7. National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia. 8. Department of Community and Family Health, College of Public Health, University of South Florida, Tampa, Florida. 9. Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas.
Abstract
BACKGROUND: Previous studies demonstrate that infant and childhood mortality differ among children with birth defects by maternal race/ethnicity, but limited mortality information is published for Hispanic ethnic subgroups. METHODS: We performed a retrospective cohort study using data for children with birth defects born to Hispanic mothers during 1999-2007 from 12 population-based state birth defects surveillance programs. Deaths were ascertained through multiple sources. Survival probabilities were estimated by the Kaplan-Meier method. Cox proportional hazards regression was used to examine the effect of clinical and demographic factors on mortality risk. RESULTS: Among 28,497 Hispanic infants and children with major birth defects, 1-year survival was highest for infants born to Cuban mothers at 94.6% (95% confidence intervals [CI] 92.7-96.0) and the lowest for Mexicans at 90.2% (95% CI 89.7-90.6; p < .0001). For children aged up to 8 years, survival remained highest for Cuban Americans at 94.1% (95% CI 91.8-95.7) and lowest for Mexican Americans at 89.2% (95% CI 88.7-89.7; p = .0002). In the multivariable analysis using non-Hispanic White as the reference group, only infants and children born to Mexican mothers were noted to have a higher risk of mortality for cardiovascular defects. CONCLUSIONS: This analysis provides a better understanding of survival and mortality for Hispanic infants and children with selected birth defects. The differences found in survival, particularly the highest survival rates for Cuban American children and lowest for Mexican American children with birth defects, underscores the importance of assessing Hispanic ethnic subgroups, as differences among subgroups appear to exist.
BACKGROUND: Previous studies demonstrate that infant and childhood mortality differ among children with birth defects by maternal race/ethnicity, but limited mortality information is published for Hispanic ethnic subgroups. METHODS: We performed a retrospective cohort study using data for children with birth defects born to Hispanic mothers during 1999-2007 from 12 population-based state birth defects surveillance programs. Deaths were ascertained through multiple sources. Survival probabilities were estimated by the Kaplan-Meier method. Cox proportional hazards regression was used to examine the effect of clinical and demographic factors on mortality risk. RESULTS: Among 28,497 Hispanic infants and children with major birth defects, 1-year survival was highest for infants born to Cuban mothers at 94.6% (95% confidence intervals [CI] 92.7-96.0) and the lowest for Mexicans at 90.2% (95% CI 89.7-90.6; p < .0001). For children aged up to 8 years, survival remained highest for Cuban Americans at 94.1% (95% CI 91.8-95.7) and lowest for Mexican Americans at 89.2% (95% CI 88.7-89.7; p = .0002). In the multivariable analysis using non-Hispanic White as the reference group, only infants and children born to Mexican mothers were noted to have a higher risk of mortality for cardiovascular defects. CONCLUSIONS: This analysis provides a better understanding of survival and mortality for Hispanic infants and children with selected birth defects. The differences found in survival, particularly the highest survival rates for Cuban American children and lowest for Mexican American children with birth defects, underscores the importance of assessing Hispanic ethnic subgroups, as differences among subgroups appear to exist.
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