overall p value for class variable in GEE model

m1ny — Thu, 18 Feb 2016 14:53:03 GMT

Hello,

I built GEE model. Participants have three different measurments(target biomarker) in the three different time.

To look at the effect of different time, model was built like below (time was considered as a class variable in this model, because time was round 1, round 2, and round 3 not exact date. )

I got a p-value for different time points (time2 vs. time1; time3 vs. time1); However, I cannot get the p-value for overall class variable (time). Can I get the p-value for the time variable rather than individual time value?

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proc genmod data=positive_m;
    class RHSP_ID time(ref='1')/param=ref;
    model ln_aflatoxinB1 = time;
    repeated subject=RHSP_ID;

run;

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Re: overall p value for class variable in GEE model

StatDave — Fri, 19 Feb 2016 18:11:45 GMT

Use the TYPE3 option in the MODEL statement.

topic overall p value for class variable in GEE model in Statistical Procedures

overall p value for class variable in GEE model

Re: overall p value for class variable in GEE model