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Last Post 18 Oct 2013 12:00 AM by  SuperUser Account
Coding of causes of death
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10 Oct 2013 12:00 AM
    In COHERE we have asked the cohorts to indicate what has been the source of information for coding the causes of death. We identified 5 possible options: 1) Did not apply any method, just had the codes mapped into HICDEP/CoDe 2) Applied full Cause of Death (CoDe) protocol within own cohort 3) Used data received back from the ART-CC 4) Used data received back from DAD 5) A mixture of the above. If the answer was “5) A mixture of the above”, we asked the cohorts to verify for each patient, submitted to COHERE in 2013, whether the source of information for the coding of causes of death was: A=Code method within own cohort B=Data from ART-CC C=Data from DAD X=Other - please specify Therefore we introduced a variable == source == in the table LTFU. Could we introduce this variable also in HICDEP? See also the WP4 minutes of 11 June 2013.


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    14 Oct 2013 12:00 AM


    Hi

    Shouldn't we use a numeric coding? I think this fits the Hicdep encoding style better.

    Is it possible that a cohort uses a mixture of 1 and 2? It may have used a own method until at some date it rolled out the full CoDe protocol. If so, then we should have a code for "own method" and one for "CoDe protocol".

    If the answer is other, where is the description provided? I think we should add a SOURCE_OTH field to do so.

    Lukas


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    15 Oct 2013 12:00 AM


    I would prefer this to be free text, not even letter codes, simply because we haven't explored all the possible sources yet and the information is more of a background type than something that will be used for analysis.

    /Jesper


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    16 Oct 2013 12:00 AM


    Fine for me. Any other comments?


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    17 Oct 2013 12:00 AM


    Hi,

    Is it possible that cohorts could submit causes of death from more than one method? i.e. if the cohort has a code from both ART-CC and DAD, would this have been submitted?

    Many thanks, Sue


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    18 Oct 2013 12:00 AM


    Hi Sue

    As datamanager I would tend to say yes (submit all you have).

    As statistician I don't like to decide myself between two potentially conflicting results.

    My suggestion would be to report the result from the best coding procedure. In your example this clearly is the full CoDe procedure applied by D:A.

    The WP4 members will discuss this at tomorrows TC.

    Best,

    Bruno
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