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Hello,
Could anyone help me with the following problem:
I am looking at the effects of different diseases on patients' long term survival following a cardiac surgery. Is it possible to give one single survival plot containing the survival curves for all the patients, those with diabetes and those with pulmonary disease? The problem here is that all the groups are overlapped, I can not generate a single variable with 3 values indicating the 3 groups.
Any advice will be highly appreciated.
Best wishes,
haiyan
National Institute of Clinical Outcomes Research
University College London
Suite 501
Heart Hospital
Westmoreland Street
London W1G 8PH
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