The study by Kennedy Krieger Institute researchers looked at infants at high genetic risk for autism and found many had weak head and neck control. A large number went on to be diagnosed with autism spectrum disorders, though some had other, more mild language or social delays.
“We don’t want to scare parents,” she said. “If I go to the doctor because I’m having problems with balance, he’s not going to assume I have a brain tumor. When a baby shows a head lag there are so many other things it can be. But this is a very real indicator of something wrong with development and easy things can be done to help.”
Landa planned to present the data and other research at the International Meeting for Autism Research, a scientific gathering on May 17 in Toronto.
She said previous studies have shown the head lag indicates delays in kids with cerebral palsy and pre-term infants, this test has not been used for infants at risk of autism.
She recommended that all pediatricians add the test of postural control to their line up and follow children closely if a lag exists. There are other indicators for developmental delays such as eye contact and ability to grasp objects, but the pull-to-sit test appears to be the best indicator for autism, Landa said.
Recently, The U.S. Centers for Disease Control and Prevention estimated that 1 in 88 kids has autism, 23 percent higher than an estimate three years ago. This is possibly due to better diagnosis of children.