BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
sophia_SAS
Obsidian | Level 7

Dear SAS users,

 

Can you help with interpreting the exact logistic regression output?  Using the "Friendship" example from the SAS website below (also attached), is it correct to say the following based on the below exact conditional tests output?  The variable "recovered" is the outcome.

 

There is an association between friendship and recovered, when controlling for diagnosis (p=0.0004). However, the association between diagnosis and recovered was not significant when accounting for friendship (p=0.5055).

 

Could I also say friendship was associated with recovered, independent of diagnosis

 

http://support.sas.com/documentation/cdl/en/statug/67523/HTML/default/viewer.htm#statug_logistic_exa...

Thanks! 

 

1 ACCEPTED SOLUTION

Accepted Solutions
StatDave
SAS Super FREQ

That statement seems reasonable. Since the model assumes no interaction between friendship and diagnosis, the effect of friendship (as measured by the parameter estimate) is the same at either diagnosis. But the test and estimate for friendship adjust for the presence of diagnosis in the model, not independently of diagnosis. Probably, friendship would still be significant if diagnosis were removed from the model, but not necessarily. 

View solution in original post

1 REPLY 1
StatDave
SAS Super FREQ

That statement seems reasonable. Since the model assumes no interaction between friendship and diagnosis, the effect of friendship (as measured by the parameter estimate) is the same at either diagnosis. But the test and estimate for friendship adjust for the presence of diagnosis in the model, not independently of diagnosis. Probably, friendship would still be significant if diagnosis were removed from the model, but not necessarily. 

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

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
  • 1305 views
  • 0 likes
  • 2 in conversation