[gemy]

Originally Posted by pstinard

Hi Gail,

Here are the data for Yorkies from Table 1:

Table 1: Breed, proportion (derived from Cox proportional hazards regression without independent variables) of bitches that developed disease, rank, and numbers of cases in different breeds that by the age of 10 years had developed pyometra (P), mammary tumours (MTs), and either or both of pyometra or MTs.

Breed: Yorkshire Terrier
Pyometra %, (number): 21% (n=157)
Mammary Tumors %, (number): 25% (n=176)
Pyometra or Mammary Tumors %, (number): 39% (n=301)
Total female Yorkshire Terriers in study: 1959

The percentages indicated are quite high in Yorkshire Terriers. I will email you a copy of the whole study so you can read it in greater detail.

Thanks Phil. I will read the PDF tonight. Any comments on its methodology? Has this study been peer-reviewed?