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st: calculation of area under curve with stata


From   elmir <elmir.omerovic@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: calculation of area under curve with stata
Date   Mon, 14 Oct 2013 01:38:29 -0700 (PDT)

Dear All, 

I am analyzing the blood pressure (BP) levels from the three different
groups of animals. BP was measured repeatedly in every animal at 10
different time points within 90 minutes from the start of the experiment.
The animals were exposed to 3 different drugs (each group n=8).

I understand that one way to compare the effect of the drugs on blood
pressure within the whole experimental period would be to calculate the area
under the curve and to use this value in a linear mixed model. 

I would be very grateful if someone could help me with step-by-step
instructions how to calculate AUC in stata.

Kind regards

Elmir Omerovic MD, PhD
Sahlgrenska University Hospital
Gothenburg, Sweden



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