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Compare means of 2 variables from admission to discharge

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Compare means of 2 variables from admission to discharge

Hi,

 

I have a data with glucose levels at admission and at discharge in 2 different variables. I want to calculate the P-value for the difference in means between these 2 variables. It means, I want to test if there was a significant change in the glucose level with time in this population.

 

Thanks

 

 

 
SAS Output
 

Variable

HBA1C_ADM

HBA1C_DIS

 

Mean

7.1

6.5

 

SD 

1.0

0.8

 
 

Accepted Solutions
Solution
‎10-12-2017 03:35 PM
Super User
Posts: 23,292

Re: Compare means of 2 variables from admission to discharge

PROC TTEST or PROC ANOVA

 

Check both of the examples sections. 

 

I think, this should be a PAIRED T-Test, so make sure you decide explicitly if it's paired or not. 

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Super User
Posts: 23,292

Re: Compare means of 2 variables from admission to discharge


seltonsy wrote:

Hi,

 

I have a data with glucose levels at admission and at discharge in 2 different variables. I want to calculate the P-value for the difference in means between these 2 variables. It means, I want to test if there was a significant change in the glucose level with time in this population.

 

Thanks

 

 

 
SAS Output
 

Variable

HBA1C_ADM

HBA1C_DIS

 

Mean

7.1

6.5

 

SD 

1.0

0.8

 
 

 

 

@seltonsy So what is your question to us? Which part, specifically, are you having issues with?

 

Contributor
Posts: 46

Re: Compare means of 2 variables from admission to discharge

sorry if it wasn't clear enough,

 

I'd like to know what is the proc to use that can perform this test. Compre the means of the two variables and provide p-values (i.e. if the means of the 2 variables are significantly different or not).

 

Thanks in advance.

Solution
‎10-12-2017 03:35 PM
Super User
Posts: 23,292

Re: Compare means of 2 variables from admission to discharge

PROC TTEST or PROC ANOVA

 

Check both of the examples sections. 

 

I think, this should be a PAIRED T-Test, so make sure you decide explicitly if it's paired or not. 

Contributor
Posts: 46

Re: Compare means of 2 variables from admission to discharge

Thanks,

 

Paired t test is the right answer I guess,

 

Here is what I did,

 

proc ttest data=cohort_1 ;
paired HBA1C_ADM*HBA1C_FIN;
run;

 

 

 

☑ This topic is solved.

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