Quote:
Originally Posted by gemy  Here is the link directly to the Viszlas study. http://mercola.fileburst.com/PDF/Hea...izslaStudy.pdf However, authors of a recent systematic review36 of all reports in peer-reviewed journals on the
associations among neutering, age at neutering, and
mammary gland tumors concluded that the evidence
that neutering reduces the risk of mammary gland neoplasia
is weak and not a sound basis for firm recommendations
on neutering because of limited evidence
and bias in published results.
|
AHA!!!! The systematic review mentioned in the Viszlas study stating that risk of mammary cancer shouldn't be a concern in making decisions about spaying is the same review mentioned in the study that I just quoted in my last post:
"A recent attempt to determine the significance of these data by systematic review of the veterinary literature was unable to identify strong evidence suggesting that spaying decreases the risk of mammary cancer; however,
this systematic review is based on work in human medicine and requires a massive body of literature, which does not exist in veterinary medicine.35"
So there is a difference of opinion on the validity of that systematic review...