GROWTH DEVELOPMENT CHILD
AUTISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Autism is significantly more common in boys than in girls. This skewed sex ratio has been recognized since the first cases of autism were described in the 1940s. The exact reasons for the ratio remain unclear.
Detailed explanation-2: -Various studies suggest that the ratio of autistic males to females ranges from 2:1 to 16:1. The most-up-to-date estimate is 3:1. In Leo Kanner’s 1943 study of a small group of autistic children, there were four times as many boys as girls.
Detailed explanation-3: -The prevalence ratio is often cited as about 4 males for every 1 female diagnosed. Other research indicates that it closer to 3:1 or 2:1. One in every 42 males and one in 189 females in the United States is diagnosed with autism spectrum disorder.
Detailed explanation-4: -In addition, independent of global differences in brain size, the amygdala in typical males tends to be larger than in females [22], and early in development the amygdala in autism is even more enlarged than that observed in typical males [23]–[25].