layout.fixed.naaccr.doc.naaccr16.survDatePresumedAlive.html Maven / Gradle / Ivy

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        Alternate Name
        Item #
        Length
        Source of Standard
        Implemented Year
        Implemented Version
        Retired Year
        Retired Version
        Column #
    
    
        
        1785
        8
        NAACCR
        2015
        15
        
        
        2305 - 2312
    


Description
The Surv-Date Presumed Alive is the last date for which complete death ascertainment is available from the registry at the time a file is transmitted. Because not all central cancer registries conduct active patient follow-up, it is necessary to have an option for calculating survival times based on the assumption that the registry has ascertained all available deaths (state/province and national), and persons not known to be deceased are presumed to be alive as of the last date for which complete death ascertainment is available. This variable is set in the survival program used to derive the seven survival variables. The survival program is available from your standard setter or NAACCR.
    

Example 1 
Vital Status: Alive 
Date of Last Contact: 20111120 
Study Cut-off Date: 20111231 
Latest date for complete death ascertainment: 20111231
    
Surv-Date Presumed Alive: 20111231

Rationale
The Surv-Date Presumed Alive is needed to be able to recalculate survival months if a different study cut-off date is used and provides flexibility to recalculate survival without needing to rerun the survival program on the original data.
Additional information about the survival algorithm and what specific values are assigned in given missing date situations are available here:


    http://seer.cancer.gov/survivaltime/.