Last Updated: September 12, 2023, 15:16 IST
The team recorded whether the children were growing up in urban or rural areas and how many respiratory infections they developed. (Image: Shutterstock)
The analysis showed that breastfeeding for longer than six months helped protect babies and children from infections, while attending daycare increased the risk
Young children growing up in towns and cities suffer from more respiratory infections than those who live in rural areas, according to a study. Another research, published in the journal Pediatric Pulmonology, shows that factors such as attending daycare, living in a damp home or near dense traffic increase the risk of chest infections in young children, while breastfeeding reduces the risk.
Both the studies were presented on Monday at the European Respiratory Society International Congress in Milan, Italy. The first study, presented by Nicklas Brustad, from the University of Copenhagen, Denmark, included 663 children and their mothers who took part in the research from pregnancy until the children were three years old.
The team recorded whether the children were growing up in urban or rural areas and how many respiratory infections they developed. They found that children living in urban areas had an average of 17 respiratory infections, such as coughs and colds, before the age of three compared to an average of 15 infections in children living in rural areas.
The researchers also carried out detailed blood tests on the mothers during pregnancy and on their newborn babies and analysed the children’s immune systems when they were four weeks old. They found that children living in urban areas had differences in their immune systems compared to those living in rural areas.
There were also differences in the blood samples from the mothers and babies that correlated with the difference in living environment and number of respiratory infections, the researchers said. “Our findings suggest that urban living is an independent risk factor for developing infections in early life when taking account of several related factors such as exposure to air pollution and starting day care,” Brustad said.
”Interestingly, changes in the blood of pregnant mothers and newborn babies, as well as changes in the new-born immune system, seem to partly explain this relationship,” the researcher added. The second study, presented by Tom Ruffles from University Hospitals Sussex NHS Foundation Trust, UK, included data on 1,344 mothers and their children living in Scotland and England.
The mothers completed detailed questionnaires when their children were a year old and again when their children were two years old. These included questions on chest infections, symptoms such as coughing and wheezing, respiratory medication, and exposure to potential environmental risk factors.
Young children living in homes with visible dampness were twice as likely to need treatment with an inhaler to relieve respiratory symptoms and twice as likely to need treatment with a steroid inhaler, the researchers said. They said that living in an area with dense traffic increased the risk of chest infections, and exposure to tobacco smoke increased the risk of coughing and wheezing. ”This research provides some important evidence about how we can help reduce chest infections in babies and toddlers,” Ruffles said.
“The benefits of breastfeeding are well-established, and we should continue to support mothers who want to breastfeed their babies,” the researcher added.
(This story has not been edited by News18 staff and is published from a syndicated news agency feed – PTI)
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