How to dertmine if you kids have Brachycephaly or plagiocephaly? - pls comment!

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Infants with a cephalic ratio of >91.2% were identified as the

brachycephaly group. 91.2% was chosen, because it is 2 standard

deviations above the mean using the Dekaban scale, and is

approximately 1 standard deviation above the mean based on the

Graham paper.

The brachycephaly group with the cephalic ratio of >91.2 was further

stratified into two groups. The Symmetrical Deformational

Brachycephaly (SDB) Group (N=15 or 6.7%) was composed of infants

having an Overall Symmetry Ratio >95% and < 6 mm of difference in

the diagonals. The Asymmetrical Deformational Brachycephaly (ADB)

Group (N=93 or 41.3%) was composed of infants having an Overall

Symmetry Ratio of < 95% and >6mm of difference in the diagonals. 117

of the 225 infants (52%) had deformational plagiocephaly,

characterized by a cephalic index < 91.2 and >6mm diagonal

difference.

Data source: http://www.oandp.org/publications/jop/2007/2007-34.asp

This is different from what I saw from one of the previous post.(

See below)Any advise or comments as to how to determine the

benchmarks??

Brachycephaly Severity is measured by the Cephalic Ratio = Cranial

Breadth

> (ML)/Cranial Length (AP). In your case that would be 5 / 6 1/8 =

81%

>

> ideal ratio - 78%

>

> normal - 73-83%

>

> moderate - 83.1% to 87.9%

>

> severe - 88% and higher