Greenery in early childhood does not protect against eczema: Study

ANI | | Posted by Tapatrisha Das, Washington
Apr 22, 2023 09:57 AM IST

The study states that proximity to agricultural areas in early childhood accelerate risk of atopic aczema in children.

Greenery around the home in early childhood does not appear to protect children against atopic eczema, according to a recent Finnish study. Instead, proximity to coniferous, mixed, and agricultural areas was linked to an increased risk of eczema. The effect was most noticeable in youngsters born in the spring.

Greenery in early childhood does not protect against eczema: Study
Greenery in early childhood does not protect against eczema: Study

"General greenness around the home did not protect children against eczema, which was contrary to our expectations and to the hypothesised allergy protective effect of nature contacts. Eczema is, however, only one of the allergic diseases in children, albeit generally the first to emerge," says MD Minna Lukkarinen, a paediatric specialist from the FinnBrain Birth Cohort Study at the University of Turku, Finland.

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Atopic eczema occurs in 20-30 per cent of children. It breaks out most frequently in the early childhood and is often associated with food allergies and the development of asthma and allergic rhinitis at a later age. It is thought that urbanisation and reduced biodiversity increase the risk of allergic diseases, but previous research findings on the topic are contradictory.

The present study utilised material from six Finnish birth cohorts, involving a total of 5,085 children. In a birth cohort, the same children are followed-up from birth, which allows studying associations between environmental early-life exposures and the disease development prior to its onset. This study examined the associations between the season of birth, the greenness and land cover types, surrounding the early-life home, and the development of eczema by the age of two years.

Allergic diseases are among the most common chronic diseases in children with significant public health and economic impact. Finding preventive means are thus urgently called for.

"Although greenness around the home did not protect against eczema, surrounding vegetation can have other beneficial effects. We also must note that greenness is a rather rough measure of nature presence and relatively poor indicator of biodiversity. The observed predisposing association of coniferous forest may indicate that the effects of nature on child's immunological development vary depending on the type of nature and the biodiversity and the exact timing of the exposures. Further studies are needed to confirm the result and to reveal the possible mechanisms," says Anne Karvonen, the Chief Researcher at Finnish Institute for Health and Welfare (THL).

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This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.
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