How is this related to linear splines? From the graph, it looks like a spline model. In Stata, the command mkspline will create the needed variables and then you can do the regression
Tony
Peter A. Lachenbruch
Department of Public Health
Oregon State University
Corvallis, OR 97330
Phone: 541-737-3832
FAX: 541-737-4001
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Isabelle Deltour
Sent: Wednesday, February 03, 2010 12:54 AM
To: [email protected]
Subject: st: RE: RE: time trends in incidence rates and joinpoint analysis in stata
I am not aware of Stata programs doing Joinpoint regressions. But there
is a program available at http://srab.cancer.gov/joinpoint/.
Hope this helps
Isabelle
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Kieran McCaul
Sent: Wednesday, February 03, 2010 1:10 AM
To: [email protected]
Subject: st: RE: time trends in incidence rates and joinpoint analysis
in stata
...
If you are only counting first cancers of a particular type, there is no
correlation between time-intervals. The count observed within each
time-interval will be an independent realisation of the underlying
Poisson process.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of moleps
Sent: Wednesday, 3 February 2010 7:12 AM
To: [email protected]
Subject: st: time trends in incidence rates and joinpoint analysis in
stata
Dear listers,
Has anyone done joinpoint regression for time trends in incidence rates
of cancer in stata? Any other suggestions as to how time trends of
incidence rates in the entire population can be analyzed properly
incorporating correlation between time-intervals?
Regards,
//M
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