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Survival Analysis when "time to event" is category/interval

Hi there

Does JMP have a module/script to run a Survival analysis when we group the event times into intervals (as en example, time to event split into a category, 0 - 5 days, 6 -10 days, 11-15 days etc...).

 

Thanks for your input, Vince

 

 

Advanced Statistical ModelingRe: Survival Analysis when "time to event" is category/interval

i think waht i need is how to fit a "piecewise Cox regression" when tiem to event is in categories

Re: Survival Analysis when "time to event" is category/interval

How do you observe time to event, are you observing each day? Why are you grouping the observations this way? Is it for interpretation?

You can use interval censoring this way if appropriate. See the description of assigning your time data columns to the Y role.

Re: Survival Analysis when "time to event" is category/interval

Based on the limited description you provided, it is difficult to answer that question, but you intervals are in Y, not X, so segmenting the model does not seem reasonable to me.

Re: Survival Analysis when "time to event" is category/interval

Apologies in the limited info i provided...

 

I am using the proportional hazards module...

 

I have as time to event variable (continuous variable which is observed each day) and a censor variable pre-defined. Curious to know if i categories the time to event variable how does oen fit a COX PH?

 

 

 

 

 

 

 

Re: Survival Analysis when "time to event" is category/interval

Hello!

 

Yes, JMP does offer capabilities for conducting Survival analysis, including scenarios where event times are grouped into intervals. You can achieve this using the "Interval Censoring" option in the Fit Life by X platform. This allows you to specify intervals for the event times and perform Survival analysis accordingly. Thanks for sharing https://community.jmp.com/t5/Discussions/Survival-Analysis-when-quot-time-to-event-quot-is-category/td-p/733575view

 

Thank you

 

Re: Survival Analysis when "time to event" is category/intervalThank youRe: Survival Analysis when "time to event" is category/interval

The time to event role uses a continuous data column.

Re: Survival Analysis when "time to event" is category/interval

Thanks

Re: Survival Analysis when "time to event" is category/intervalGiven that I’m interested in estimating a hazard rate per time ‘interval ‘is this possible?

So assume I have pre-specified time to event intervals, as an example 0 to 5 days, for instance and also have a continuous time to event variable - my main interest is estimating a hazard ratio for the interval (0 to 5 days) for instance.