Dear Nikki, 

They actually found that longer breastfeeding does matter (emphasis added by
me):

"Because observational studies use dose-response relation to
infer causality26 we repeated the analysis including data only on
those who were breast fed and introducing duration of breast
feeding in months (defined as four weeks) to the model (table 4).
Although the effects for reading comprehension and PIAT total
score were significant, all effects were small considering that the
median duration of breast feeding is three months and the 95th
centile is 14 months.** We repeated the analysis dividing those
breast fed into quarters of duration of breast feeding and
contrasted each of these with those not breast fed (table 4). The
results broadly concur with the previous analysis. There were significant
differences for the PIAT total score and the maths and
reading comprehension subscales, but only for those in the top
quarter of duration of breast feeding. There were also some signs
of a departure from linearity in the second quarter.** ""
here is the link to the study
 http://bmj.bmjjournals.com/cgi/rapidpdf/bmj.38978.699583.55v1.pdf

There was no differentation on the exclusivity of breastfeeding in the
study:
"Breast feeding-Women who had had a child since the
previous interview were asked whether they breast fed the child
at all and, if so, how old the child was when they stopped breast
feeding. In most cases this information would have been
obtained within a year of the birth. Even so, reports on duration
of breast feeding were probably less reliable than reports of
whether a child was breast fed or not."

Sincerely yours, 
Victoria Nesterova,
bf supporter, Kiev, Ukraine 
http://breastfeeding.narod.ru

In a message dated 10/4/2006 4:50:44 PM Eastern Standard Time,
[log in to unmask] writes:
http://www.webmd.com/content/article/128/116976?src=3DRSS_PUBLIC
Dear Friends:
    As this study refutes all of Lucas' lovely research, I wonder about it. 
Especially as it was done in the USA, and the definition of breastfeeding is
not mentioned.
    The Horwood study used teacher ratings of children (aged 8-18) of
various performances (test values, social interactions to name but 2). The
teachers did not know who was bf'd and who wasn't; breastfeeding made a
difference, especially when continued into the second half of the first year
of life.
    warmly,
    warmly,
Nikki Lee RN, MS, Mother of 2, IBCLC, CCE Adjunct Faculty, Union Institute
and University, Lactation Program Film Reviews Editor, Journal of Human
Lactation www.breastfeedingalwaysbest.com

   

             ***********************************************

To temporarily stop your subscription: set lactnet nomail
To start it again: set lactnet mail (or digest)
To unsubscribe: unsubscribe lactnet
All commands go to [log in to unmask]

The LACTNET mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software together with L-Soft's LSMTP(R)
mailer for lightning fast mail delivery. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html