"According to the U.S. Centers for Disease Control and Prevention, boys are about three times more likely to be diagnosed as autistic than girls are. Scientists have sought an answer as to why that imbalance exists: some have argued it is to do with male and female brains; others have proposed that genetic differences or some other biological factor could hold an answer."
"Scientists followed 2.7 million children born in Sweden between 1985 and 2020, about 2.8 percent of whom had been diagnosed as autistic by 2022. In early childhood, boys were much more likely to receive an autism diagnosis. But as the cohort aged, the researchers identified a catch-up effectby age 20, women were almost just as likely to have received an autism diagnosis as men."
Boys receive autism diagnoses about three times more often than girls in early childhood, according to CDC figures. A Swedish cohort of 2.7 million children born 1985–2020 found about 2.8% diagnosed autistic by 2022. Early childhood diagnosis rates favored boys, but a catch-up effect emerged as the cohort aged, so that by age 20 women were nearly as likely as men to have received an autism diagnosis. The pattern suggests many girls may be underdiagnosed in childhood and could miss critical care. Experts note the long timeframe and extensive dataset and that reliance on clinical diagnoses may influence findings.
Read at www.scientificamerican.com
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