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|Title:||Association of preterm birth with long-term survival, reproduction, and next-generation preterm birth||Authors:||Swamy, G.K.
|Issue Date:||26-Mar-2008||Citation:||Swamy, G.K., Østbye, T., Skjærven, R. (2008-03-26). Association of preterm birth with long-term survival, reproduction, and next-generation preterm birth. JAMA - Journal of the American Medical Association 299 (12) : 1429-1436. ScholarBank@NUS Repository. https://doi.org/10.1001/jama.299.12.1429||Abstract:||Context: Preterm birth is a major cause of infant morbidity and mortality. Less is known about long-term health among persons born preterm. Objective: To determine the long-term effects of preterm birth on survival, reproduction, and next-generation preterm birth. Design, Setting, and Participants: Population-based, observational, longitudinal study using registry data from 1 167 506 singleton births in the Medical Birth Registry of Norway in 1967-1988. The cohort was followed up through 2002 for survival. The cohort was truncated to births from 1967-1976 for assessment of educational achievement and reproductive outcomes through 2004. Main Outcome Measures: In relation to sex and gestational age at birth, absolute mortality, risk of fetal, infant, child, and adolescent mortality, and incidence and risk of reproduction and next-generation preterm birth. Singleton term (37-42 weeks) fetal deaths and live births, stratified by sex, served as the reference group for all analyses. Results: The percentage who were born preterm was higher among boys (5.6%) than among girls (4.7%). Preterm participants had an increased risk of mortality throughout childhood. For boys born at 22 to 27 weeks, mortality rates were 1.33% and 1.01% for early and late childhood death, with relative risks (RRs) of 5.3 (95% confidence interval [CI], 2.0-14.2) and 7.0 (95% CI, 2.3-22.0), respectively. The mortality rate for girls born at 22 to 27 weeks was 1.71% for early childhood death, with an RR of 9.7 (95% CI, 4.0-23.7); there were no late childhood deaths. For 28 to 32 weeks, the early and late childhood mortality rates among boys were 0.73% and 0.37%, with RRs of 2.5 (95% CI, 1.6-3.7) and 2.3 (95% CI, 1.3-4.1), respectively. Girls born at 28 to 32 weeks did not have a significantly increased risk of childhood mortality. Reproduction was diminished for index participants born preterm. For men and women born at 22 to 27 weeks, absolute reproduction was 13.9% and 25%, with RRs of 0.24 (95% CI, 0.17-0.32) and 0.33 (95% CI, 0.26-0.42), respectively. For 28 to 32 weeks, absolute reproduction was 38.6% and 59.2% for men and women, with RRs of 0.7 (95% CI, 0.66-0.74) and 0.81 (95% CI, 0.78-0.85), respectively. Preterm women but not men were at increased risk of having preterm offspring. Conclusion: In persons born in Norway in 1967-1988, preterm birth was associated with diminished long-term survival and reproduction. ©2008 American Medical Association. All rights reserved.||Source Title:||JAMA - Journal of the American Medical Association||URI:||http://scholarbank.nus.edu.sg/handle/10635/109940||ISSN:||00987484||DOI:||10.1001/jama.299.12.1429|
|Appears in Collections:||Staff Publications|
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