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    <title>topic Use Cox model with time-dependent variable for prediction of event in Statistical Procedures</title>
    <link>https://communities.sas.com/t5/Statistical-Procedures/Use-Cox-model-with-time-dependent-variable-for-prediction-of/m-p/829650#M41101</link>
    <description>&lt;P&gt;I would&amp;nbsp; like to know if performing surgery or not is a benefit for a patient.&lt;/P&gt;&lt;P&gt;For that, I have a database with baseline characteristics of patients, surgery (and time to surgery) or not and outcome (death).&lt;/P&gt;&lt;P&gt;I would like to calculate prediction of deaths depending on the characteristics of the patient and the fact that the patient undergoes or not a surgery.&lt;/P&gt;&lt;P&gt;It will be an help for the clinical team to take a decision.&lt;/P&gt;&lt;P&gt;I am thinking about an extended Cox model with surgery as time-dependent variable and with significant baseline characteristics included in the model.&lt;/P&gt;&lt;P&gt;I found a paper dated on 2005:&lt;/P&gt;&lt;P&gt;"Predictive survival model with time-dependent prognosis factors: development of computer-aided SAS macro program".&lt;/P&gt;&lt;P&gt;Did someone use it?&lt;/P&gt;&lt;P&gt;Do you think that it will answer to my question?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Mon, 22 Aug 2022 13:13:18 GMT</pubDate>
    <dc:creator>ABRUNEL</dc:creator>
    <dc:date>2022-08-22T13:13:18Z</dc:date>
    <item>
      <title>Use Cox model with time-dependent variable for prediction of event</title>
      <link>https://communities.sas.com/t5/Statistical-Procedures/Use-Cox-model-with-time-dependent-variable-for-prediction-of/m-p/829650#M41101</link>
      <description>&lt;P&gt;I would&amp;nbsp; like to know if performing surgery or not is a benefit for a patient.&lt;/P&gt;&lt;P&gt;For that, I have a database with baseline characteristics of patients, surgery (and time to surgery) or not and outcome (death).&lt;/P&gt;&lt;P&gt;I would like to calculate prediction of deaths depending on the characteristics of the patient and the fact that the patient undergoes or not a surgery.&lt;/P&gt;&lt;P&gt;It will be an help for the clinical team to take a decision.&lt;/P&gt;&lt;P&gt;I am thinking about an extended Cox model with surgery as time-dependent variable and with significant baseline characteristics included in the model.&lt;/P&gt;&lt;P&gt;I found a paper dated on 2005:&lt;/P&gt;&lt;P&gt;"Predictive survival model with time-dependent prognosis factors: development of computer-aided SAS macro program".&lt;/P&gt;&lt;P&gt;Did someone use it?&lt;/P&gt;&lt;P&gt;Do you think that it will answer to my question?&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 22 Aug 2022 13:13:18 GMT</pubDate>
      <guid>https://communities.sas.com/t5/Statistical-Procedures/Use-Cox-model-with-time-dependent-variable-for-prediction-of/m-p/829650#M41101</guid>
      <dc:creator>ABRUNEL</dc:creator>
      <dc:date>2022-08-22T13:13:18Z</dc:date>
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