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Pediatric IBD risk linked to antibiotics, Western diet and higher family income

child playing with dog
Credit: Pixabay/CC0 Public Domain

Children and adolescents face greater risk of inflammatory bowel disease (IBD) when exposed to antibiotics or a Western diet at early ages, or when their family has higher socioeconomic status, according to a study being presented today at Digestive Disease Week (DDW) 2023.

"Pediatric IBD cases are rising globally, and approximately one in four of all IBD cases are now diagnosed before age 21," said Nisha Thacker, the study's lead author and a gastrointestinal dietitian. A unique concern about pediatric IBD is the impact that the inflammation has on a child's growth and the progression of puberty, so parents should be aware of this condition and the modifiable factors that influence it.

As a part of her Ph.D. studies, at The University of Newcastle in Australia, she conducted a of 36 observational studies representing approximately 6.4 million . Thacker found that any exposure to antibiotics before age 5 was linked to a three times greater risk of pediatric IBD, and exposure to four or more courses of antibiotics to a 3.5 times greater risk.

Lower socioeconomic status appears to be a protective factor that is associated with a 65% lower risk of childhood IBD. Greater consumption of vegetables was also protective, as was having two or more siblings, and being exposed to pets during childhood.

The findings that exposure to animals and having only one toilet are protective of IBD indicate that excessive hygiene can reduce microbes in the environment and interfere with development of a robust microbiome, Thacker said. Basic hygiene is recommended but allowing children to play outdoors and interact with pets in a safe environment appears to be beneficial for developing a strong immune system.

"Many of these factors can impact our and may have a particularly strong effect in a child," Thacker said. "A Western diet, high in sugars and ultra-processed foods and low in vegetables, is a prime example."

Another risk factor is to secondhand smoke, which doubled the risk of IBD in children.

Thacker advised families with to emphasize a diet rich in vegetables and minimally processed whole foods, use antibiotics cautiously in early childhood, consider adopting a pet, prevent exposure and avoid excessive worry about hygiene, especially in . If a family has a history of IBD or a child has a history of eczema/rhinitis, encouraging breastfeeding, followed by a healthy diet pattern for the child, may minimize compounding effects of a Western diet on the genetic risk.

A novel risk factor identified in the study is being a non-Caucasian child living in a high-income country, which tripled pediatric IBD risk. The influence of migration on pediatric IBD is the next focus of Ms. Thacker's research.

Provided by Digestive Disease Week
Citation: Pediatric IBD risk linked to antibiotics, Western diet and higher family income (2023, May 8) retrieved 19 May 2024 from https://medicalxpress.com/news/2023-05-pediatric-ibd-linked-antibiotics-western.html
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