Share

C-section raises kids' asthma risk

accreditation
iStock

Children born by caesarean delivery are at increased risk for developing asthma, particularly if their parents have allergies, according to a report published this month.

C-section has been thought to be a risk factor for asthma, although the relationship is controversial, Dr. H. A. Smit, from the National Institute for Public Health and the Environment in Bilthoven, the Netherlands, and colleagues note in the report.

How the study was done
Smit's team analyzed data from 2917 children to assess the association between caesarean delivery and asthma or allergies at 8 years of age.

Overall, 362, or 12.4 percent, of the children developed asthma at age 8, the researchers report, and 8.5 percent had been delivered by c-section.

The findings
Overall, children delivered by c-section were 79 percent more likely to develop asthma than children born vaginally, the investigators found.

The association between c-section and asthma was even stronger for children born to one or two allergic parents than for children born to parents without allergies.

"Our results emphasize the importance of gene-environment interactions on the development of asthma in children," Smit and colleagues conclude.

"The increased rate of caesarean section is partly due to maternal demand without medical reason. In this situation, the mother should be informed of the risk of asthma for her child, especially when the parents have a history of allergy or asthma," they wrote.

- (Reuters Health)

SOURCE: Thorax, February 2009.

Read more:
Childhood virus may cause asthma
Nuts in pregnancy ups asthma risk

We live in a world where facts and fiction get blurred
Who we choose to trust can have a profound impact on our lives. Join thousands of devoted South Africans who look to News24 to bring them news they can trust every day. As we celebrate 25 years, become a News24 subscriber as we strive to keep you informed, inspired and empowered.
Join News24 today
heading
description
username
Show Comments ()
Editorial feedback and complaints

Contact the public editor with feedback for our journalists, complaints, queries or suggestions about articles on News24.

LEARN MORE