PROC GLIMMIX might produce incorrect P values and confidence intervals in the LSMEANS statement output when the following conditions are met:

• You specify the DDFM=KR or the DDFM=SATTERTHWAITE option in the MODEL statement.
• The model contains a RANDOM statement. 

There is no workaround for this issue.

Click the Hot Fix tab in this note to access the hot fix for this issue.

Operating System and Release Information

Product Family	Product	System	SAS Release
			Reported	Fixed*
SAS System	SAS/STAT	z/OS	9.1 TS1M3	9.4 TS1M8
		Microsoft® Windows® for x64	9.1 TS1M3	9.4 TS1M8
		64-bit Enabled AIX	9.1 TS1M3	9.4 TS1M8
		64-bit Enabled Solaris	9.1 TS1M3	9.4 TS1M8
		HP-UX IPF	9.1 TS1M3	9.4 TS1M8
		Linux	9.1 TS1M3	9.4 TS1M8
		Solaris for x64	9.1 TS1M3	9.4 TS1M8

* For software releases that are not yet generally available, the Fixed Release is the software release in which the problem is planned to be fixed.

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A fix for this issue for SAS/STAT 15.3 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/L9L.html#70094

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A fix for this issue for SAS/STAT 15.2 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/I5J.html#70094

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A fix for this issue for SAS/STAT 15.1 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/E8U.html#70094

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A fix for this issue for SAS/STAT 14.3 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/C9Y.html#70094

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If you specify the MODEL statement option DDFM=KR or DDFM=SATTERTHWAITE, and you indicate G-side or R-side model effects in the RANDOM statement, PROC GLIMMIX can compute incorrect least squares means p-values and confidence intervals.

Type:	Problem Note
Priority:	alert
Topic:	SAS Reference ==> Procedures ==> GLIMMIX Analytics ==> Mixed Models

Date Modified:	2025-03-07 10:11:38
Date Created:	2023-05-12 10:33:23