Studies suggest that pregnancy intervals can affect the risk of autism

Kathleen Doheny
Health Day Reporter

Monday, September 14, 2015 (HealthDay News)-Time between women pregnancy May be important regarding the risks that her child may develop autism, New research suggests.

“Children who become pregnant within two years or more than six years after their older siblings were born [about] The risk of being diagnosed with is increased 2-3 times autism“. autism A research program at the Kaiser Permanente Research Division in Oakland, California.

Croen said previous studies have shown an increased risk associated with being very short. pregnancy Higher risk at intervals, and at longer than usual intervals. “We are finding the same thing, and I think there is more evidence now that we are pointing in the same direction,” she said.

But she warned, “This is not a causal relationship. These types of studies cannot prove the cause. This is a relevance.”

And at least one neonatologist said in this study pregnancy Interval and possible autism, And more research is needed on this topic.

Cloen said the findings support the current World Health Organization recommendation to wait at least two years after the child is born before attempting the next pregnancy.

The study will be released online on September 14th and will be published in the October print edition of the journal. Pediatrics..

1 in 68 children in the United States Autism spectrum disorder, According to the US Centers for Disease Control and Prevention Prevention..Boys are more likely to be diagnosed than girls autism, CDC report. Genetic and environmental factors can affect conditions, including communication and socialization issues.

The new study included a review of medical records of approximately 45,000 second-born children conducted at a hospital in Northern California, Kaiser Permanente between 2000 and 2009.

Researchers looked at the code, which included the diagnosis of all the conditions under its umbrella. Autism spectrum disorder (((ASD), May range from mild to severe. The research team also looked at the pregnancy interval, which is defined as the time between the first childbirth and the first childbirth. concept Of the second child.

Most older siblings of the 45,000 second-born children were undiagnosed ASD, But 878 did. The researchers first analyzed a group without older siblings with ASD.

For these children autism It was 1.5 to 3 times higher at intervals of less than 24 months and more than 72 months when compared to intervals of 36 to 47 months. Studies have shown that intervals of less than 6 months seem to be the highest risk.

Researchers conducted a secondary analysis of those whose older siblings had ASD and found the same pattern-short or long intervals increased the risk of ASD diagnosis.

Researchers don’t know how to reliably explain the relevance, according to Cloen. One of the possible reasons is that mothers with short pregnancy intervals Folic acid.. “”Folic acid It’s an important nutrient in terms of healthy brain development, “she said.

Dr. David Mendes, a neonatologist at the Nicklaus Children’s Hospital in Miami, said many researchers looked at the pregnancy gap and investigated the effects of long and short.Some associate short intervals with mental disorders such as: schizophrenia, He added.

But Mendes said, “Everyone needs to do more concrete research before they can say anything decisive.”

Pregnancy intervals are one of many factors that can affect a child’s health and upbringing. However, he suggested that shortening the interval between pregnancies might make it easier for parents to deal with.

Copyright © 2015 Health Day. all rights reserved.


Autism is a developmental disorder.
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Source: David Mendez, MD, Neonatologist, Nicklaus Children’s Hospital, Miami; Lisa Croen, Ph.D. , Director, Autism Research Program, Kaiser Permanente Research Division, Oakland, CA; October 2015, Pediatrics

Studies suggest that pregnancy intervals can affect the risk of autism

Source link Studies suggest that pregnancy intervals can affect the risk of autism

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