Attachment
DETAILS OF
EMAIL SENT
BY A
COLLEAGUE TO
DR DUDLEY
REGARDING ANOTHER
FOI REQUEST
Sent: 29 March 2007
A Medical Section colleague looked briefly at
NAO spreadsheet and suggests as follows:
"I've had a little look at the NAO's spreadsheet
(attached to the email) and there does seem to be an error, namely
that the cost of surgery is only counted in the 6% (0.3*(1-0.8))
of patients in whom surgery prevents a stroke, so that surgical
costs are underestimated by a factor of 17."
You may wish to follow this up directly with
NAO.
March 2007
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