Displaying 2 results from an estimated 2 matches for "retinopathy".
2013 Feb 23
5
Selecting First Incidence from Longitudinal Data
...1
3 0 0 1
3 0 0 1
3 0 0 1
3 0 0 1
3 2 0 1
4 0 1 2
4 0 1 2.
Where, COMPL= health complication of diabetic patients which has value
labels as 0= no complication,1=coronary heart disease, 2=retinopathy, 3=
nephropathy.
I want to select only the first complication that occurred to each patient.
What R function can I use?
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2012 Mar 13
1
how to write crossed and nested random effects in a model
Dear R Users,
I have a question based on my research. I am analyzing reader-based
diagnostic data set. My study involves diabetic patients who were evaluated
for treatable diabetic retinopathy based on the presence or absence of two
pathologies in their eyes. Pathologies were identified using the clinical
examination (Gold standard method). In addition it can be identified by
taking digital images of patients? eyes and this method is cost effective.
Finally two readers go over the image...