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Old 07-22-2003, 12:29 AM   #1
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Join Date: Apr 2002
Location: Singapore
Posts: 25
phow HB User
Post Rapid Brain Growth- Head Size poll

How about we do our own poll on head size & autism?

According to the study pubished in the Journal of the American Medical Association, the average headsize of autistic children was in the 25th percentile at birth but increased rapidly to put their average in the 86th percentile by the age of one.

I don't recall my daughter going through a rapid expansion of her head size in her first year.

Did your kids?

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Old 07-22-2003, 10:14 AM   #2
Join Date: Dec 2001
Location: San Jacinto, Ca.
Posts: 274
Nicksmom HB User

I don't know exactly what percentile my son came in at, however, the place that stores medical records in my city was going out of business and they where going to distroy all our records within a year if they where I have the originals in front of me. I remember the doctor measuring his head at all the visits and just saying he's in the normal range. According to his records, his head cm at a month old was 37 and his head cm was 48 at 12 months old. I found the normal ranges on line so you can see that therory doesn't add up in my son's case.

All lengths are in cms and refer to circumference around the widest point. I have included the average and the range in brackets.
Birth: 35cm (33-37)
1month: 36.5cm (33.5 - 40)
2mth: 38cm (35 -41)
6mth: 42cm (40-45)
9mth: 44cm (41-46.5)
12mth: 45.5cm (43-48)
18mth: 47cm (44-49)
2yrs: 47.5cm (45-50)
2.5yr: 48cm (45.5-51)
3yr: 48.5cm (46 - 52)

Old 07-22-2003, 11:16 AM   #3
kiki lou
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Join Date: Mar 2003
Posts: 190
kiki lou HB User

Mine was at 95th percentile at birth, was down to 90th at age 1 or so. So, nope, that theory is BS, in my opinion.

Old 08-09-2003, 07:43 PM   #4
Join Date: Aug 2003
Posts: 2
DScottK HB User

Hello. My son is nine months old and this story scared me when it first came out. He has a very large head (ninety-something percentile). Although his head was never small to begin with, it is a concern. What are some other signs I should be looking for?

Old 08-10-2003, 08:14 AM   #5
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Join Date: May 2003
Location: Garden City, KS
Posts: 23
sdgarcia234 HB User

All kids with autism are very different from one another, therefore you would assume that the reason that they have autism is different for each child. It is possible that what caused one childs autism is not what caused a different childs autism.

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