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Preterm birth is associated with increased risk of asthma and wheezing disorders

Date:
January 28, 2014
Source:
Public Library of Science
Summary:
Children who are born preterm have an increased risk developing asthma and wheezing disorders during childhood according to new research.

Children who are born preterm have an increased risk developing asthma and wheezing disorders during childhood according to new research published in PLOS Medicine.

The research by Jasper Been, from the Maastricht University Medical Centre (Netherlands) and The University of Edinburgh (UK), and colleagues at Harvard Medical School (US) is a systematic review and meta-analysis of 30 unique studies that collectively involved approximately 1.5 million children. The authors found that children born preterm (before 37 weeks of gestation) were about 46% more likely to develop asthma or a wheezing disorder during childhood, than babies at full term (≥ 37 weeks of gestation). The authors also found that children born very preterm (<32 weeks of gestation) were at even higher risk of developing asthma or a wheezing disorder, almost three times as likely as children born at full term. The authors estimate that if no preterm births had occurred, there would have been more than a 3.1% reduction in childhood wheezing disorders.

The findings are important because increasing numbers of preterm babies survive today thanks to improvements in the management of prematurity, with approximately 11% of children now being born preterm. However, accumulating evidence suggests that early life events are involved in the subsequent development of non-communicable diseases. Given the increasing burden of preterm birth, a better understanding of the long-term effects of preterm birth is essential.

The authors say, "[t]he current findings do not support prior suggestions that the association between preterm birth and wheezing disorders becomes less prominent with increasing age [...] Instead, the strength of the association was similar across age groups [up to 18 years], suggesting that the pulmonary consequences of preterm birth tend to persist throughout the life course."

They conclude, "[t]here is compelling evidence that preterm birth -- particularly very preterm birth -- increases the risk of asthma. Given the projected global increases in children surviving preterm births, research now needs to focus on understanding underlying mechanisms, and then to translate these insights into the development of preventive interventions."


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jasper V. Been, Marlies J. Lugtenberg, Eline Smets, Constant P. van Schayck, Boris W. Kramer, Monique Mommers, Aziz Sheikh. Preterm Birth and Childhood Wheezing Disorders: A Systematic Review and Meta-Analysis. PLoS Medicine, 2014; 11 (1): e1001596 DOI: 10.1371/journal.pmed.1001596

Cite This Page:

Public Library of Science. "Preterm birth is associated with increased risk of asthma and wheezing disorders." ScienceDaily. ScienceDaily, 28 January 2014. <www.sciencedaily.com/releases/2014/01/140128184805.htm>.
Public Library of Science. (2014, January 28). Preterm birth is associated with increased risk of asthma and wheezing disorders. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2014/01/140128184805.htm
Public Library of Science. "Preterm birth is associated with increased risk of asthma and wheezing disorders." ScienceDaily. www.sciencedaily.com/releases/2014/01/140128184805.htm (accessed July 31, 2014).

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