Pre-pregnancy obesity might increase atopic dermatitis risk among infants: Study

Medically Reviewed By : Dr. Kamal Kant Kohli

Published On 2021-11-29 03:30 GMT | Update On 2021-11-29 03:31 GMT

A new investigation from China published in the Pediatric Allergy and Immunology suggested that maternal pre-pregnancy overweight and obesity could potentially increase the risk of atopic dermatitis in infants via intrauterine mechanisms.

Maternal pre-pregnancy body mass index (BMI) and gestational weight gain (GWG) have been linked to offspring allergic disorders. However, associations observed in previous studies were inconsistent and might be confounded by unmeasured familial factors. The researchers aimed to examine the associations of maternal weight with offspring allergic disorders by using paternal BMI as a negative control exposure.

The researchers included the data of 10522 children from the Born in Guangzhou Cohort Study, 2012–2017. Data on maternal weight were obtained from questionnaires and obstetric records, and paternal weight was collected from questionnaires. Atopic dermatitis (AD) and wheezing at the age of one year were defined according to parent-reported physician diagnosis. Risk ratios (RRs) were estimated by log-binominal regression with mutual adjustment for maternal and paternal weight status.

The Results of the study are as follows:

By the age of one year, 16.2% and 7.9% of children were diagnosed with AD and wheezing, respectively. While maternal pre-pregnancy BMI as a continuous variable was not associated with offspring AD, infants of pre-pregnancy overweight/obese women had a higher risk of AD than those born to normal-weight women; no such associations were observed for paternal BMI. Both maternal pre-pregnancy BMI and paternal BMI were positively associated with the risk of offspring wheezing. Maternal GWG was not associated with AD or wheezing.

Thus, the researchers concluded that their findings suggest that maternal pre-pregnancy overweight/obesity might increase the risk of infant AD via intrauterine mechanisms, whereas the association with wheezing might be confounded by uncontrolled familial factors. These findings may be valuable in early-life prevention for offspring allergic diseases.

Reference:

The study, "Associations of maternal weight status with the risk of offspring atopic dermatitis and wheezing by one year of age," was published in Pediatric Allergy and Immunology.

https://doi.org/10.1111/pai.13703

Article Source : Pediatric Allergy and Immunology

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Dr. Shravani Dali

Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.

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Pre-pregnancy obesity might increase atopic dermatitis risk among infants: Study

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