BookmarkSubscribeRSS Feed
m1ny
Fluorite | Level 6

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?

 

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

run;

------------------------------------------------------

 

 

 

1 REPLY 1
StatDave
SAS Super FREQ

Use the TYPE3 option in the MODEL statement.

Ready to join fellow brilliant minds for the SAS Hackathon?

Build your skills. Make connections. Enjoy creative freedom. Maybe change the world. Registration is now open through August 30th. Visit the SAS Hackathon homepage.

Register today!
What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

Discussion stats
  • 1 reply
  • 2304 views
  • 0 likes
  • 2 in conversation