Hello,
I need your help. I have a data comparing between two diagnostic tests for
Osteoporosis. The gold standard test is axial bone mineral density (BMD)
using dual energy X-ray absorptiometry (DXA) T score (Quantitative value
which can be changed to qualitative), the other one is the new quantitative
ultrasound (QUS) T score (Quantitative).
I am using SPSS Statistics 17.
How can calculate the sensitivity and specificity for the new test using a
specific cut-off value? And how can I create a ROC curve for different
cut-off values?
I was told that SPSS cannot do that, and I have to use other software such
as MedCalc. Is that right?
Thank you for help and support.
Dr. Amr Jamal, MBBS, SBFM, ABFM, MRCGP[Int.]
Assistant Professor & Consultant of Family Medicine,
Specialist of Medical Informatics
Department of Family & Community Medicine
College of Medicine & King Khalid University Hospital
King Saud University,
Riyadh, Saudi Arabia
http://www.amrjamal.com=====================
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