A New Study Shows That The Autism Risk May Increase For Closely Spaced Babies. A Baby Conceived Within 12 Months Of The Birth Of His Older Sibling Is Three Times As Likely To Develop Autism. Why?
A new study shows that the autism risk may increase for closely spaced babies. A baby conceived within 12 months of the birth of his older sibling is three times as likely to develop autism. Why?
A new research study has shown that the risk of autism may be tripled for a baby conceived close to his or her older sibling. The highest risk was for the babies conceived within a year of the birth of their older siblings. HealthDay reported the results of the study, which is printed in the February issue of Pediatrics. In the study, researchers reviewed the birth records of 660,000 children born in California over a ten year span (1992 to 2002). California Department of Developmental Services records were used to confirm autism diagnoses. The findings were as follows:
- A baby conceived within one year after his older sibling was born was "more than three times as likely to have autism than children conceived more than three years apart."
- A baby conceived between 12 and 24 months after his older sibling was born was twice as likely to have autism
- A baby conceived between 24 and 36 months after his older sibling was born was was 25% more likely to have autism.
The reason why closely spaced pregnancies may up the risk of autism isn't known, but it could have something to do with the mother's body not having enough time to recover completely from the prior pregnancy, said Andy Shih, vice president of scientific affairs for Autism Speaks. "When you have a child so quickly after the first, the womb environment may not have sufficiently recovered to properly support a second pregnancy," Shih said. The researchers said the first pregnancy may deplete critical nutrients such as folate and iron, and the mother may also be more stressed during the second pregnancy. (Source: HealthDay)>>Would you consider spacing out your babies based on this information?