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Topic: Any model for an increasing-constant-increasing cumulative hazard?
Replies: 2   Last Post: May 30, 2006 9:15 AM

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Anne

Posts: 14
Registered: 4/1/06
Any model for an increasing-constant-increasing cumulative hazard?
Posted: May 19, 2006 8:49 PM
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I use SAS's PROC LIFETEST with method=Kaplan-Meier to analyze a data set
with censored and uncensored observations. The plot of the cumulative
hazard (negative of the log of the survival) versus the survival time
shows an increasing-constant-increasing curve. It looks like a 45 degree
(slope=1) line from t0 to t1, a horizontal line from t1 to t2, and then a
45 degree (slope=1) line from t2 to infinity.
Could you please help me if any model can fit this data? Or, did I do
something wrong on the analysis?
Thanks.

Jennifer




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