Epidemiologic precisions:
When Dr Williams wrote : "we have a 30 % incidence in intact ferrets"
it doesn't mean that 30% of the adrenal cases were in intact ferrets but
that 30% of the intact ferrets have adrenal problem.
     BTW, is it really a mesure of incidence (i.e. frequency of "new"
cases only during a given period of time (like a year)) or a mesure of
prevalence (i.e. frequency of cases at a given moment or at any moment
during a period of interest without distinction of "new" and "old" cases)?
 
Anne Charbonneau        Faculte de medecine dentaire    Universite de Montreal
[log in to unmask]            Tel: (514) 343-5924
[log in to unmask]               Fax: (514) 343-2233
 
[Posted in FML issue 1225]