[EMAIL PROTECTED] wrote:
> Today's story from the Associated Press, "Study: American kids getting fatter 
> at disturbing rate".  

> "By 1998, nearly 22 percent of black children ages 4 to 12 were overweight, 

[....]

> overweight.  ...Overweight was defined as having a body-mass index higher 
> than 95 percent of youngsters of the same age and sex, based on growth charts 


  On its face, it seems to say "22% of black children ages 4 to 12
had body-mass-index greater than 95% of [their peers]."

This is mind-bendingly difficult to comprehend as stated; but I think 
what they must have *meant* was "22% of black children ages 4 to 12 had
body-mass-index in the greatest 5-th percentile of a *particular*, prior, 
distribution of body-mass-indices which was once considered representative
of an acceptable state of affairs for the cohort of children 4-12".

Is this what they meant?


=================================================================
Instructions for joining and leaving this list and remarks about
the problem of INAPPROPRIATE MESSAGES are available at
                  http://jse.stat.ncsu.edu/
=================================================================

Reply via email to