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st: Reconstructing the distribution from interval data
From
Ronan Conroy <[email protected]>
To
"statalist hsphsun2. harvard. edu" <[email protected]>
Subject
st: Reconstructing the distribution from interval data
Date
Wed, 8 Sep 2010 17:25:05 +0100
I'm reviewing a paper in which doctors were asked how many times they
had carried out a particular procedure in the last year. The
questionnaire used categories, so responses looked like this:
Number of Gynaecologists Plastic
times Surgeons
None 17 3
1-5 24 34
5-10 0 4
10-20 0 1
More than 20 0 1
I am wondering how one might calculate the likeliest underlying annual
rate for each group based on the data above.
Has anyone come up against this problem and found a solution? I'd be
very curious about the answer for practical reasons - the authors have
data that are pretty hard to come by, and being able to calculate an
annual rate would be very helpful indeed for future research.
Ronán Conroy
Associate Professor
Division of Population Health Sciences
=================================
[email protected]
Royal College of Surgeons in Ireland
Epidemiology Department,
Beaux Lane House, Dublin 2, Ireland
+353 (0)1 402 2431
+353 (0)87 799 97 95
+353 (0)1 402 2764 (Fax - remember them?)
http://rcsi.academia.edu/RonanConroy
P Before printing, think about the environment
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