Lower risk of arthritis for kids with siblings

Children who spend their pre-school years at home with germ-laden brothers and sisters may be protected against juvenile idiopathic arthritis (JIA), say Australian researchers.

An analysis of the Childhood Arthritis Risk Factor Identification Study (CLARITY) shows children with siblings are 64% less likely to develop JIA, compared to those with no siblings.

And for children with three or more siblings, the risk is 75% less than for an only child, the Murdoch Children’s Research Institute study has found.

“The hygiene hypothesis suggests

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