topic Re: How to calculate standardized difference and p value in Statistical Procedures

How to calculate standardized difference and p value

VinnyR — Wed, 11 Sep 2019 19:40:11 GMT

Hi I am expected to produce a table as following as attached. I would really appreciate if somebody could help me by letting me know how to calculate standardized difference and p value highlighted in the attached image.

Any help is really appreciated.

Re: How to calculate standardized difference and p value

PaigeMiller — Wed, 11 Sep 2019 19:52:48 GMT

I'm not 100% sure what "standardized difference" is, and the the attached image isn't all that definitive either, but these tests look like t-tests, which you can produce via PROC TTEST. But that's a guess, and I don't really like guessing ... because sometimes I get it wrong and that wastes everybody's time.

Can you provide more information about what this table is doing, specifically p-value for what? And what XX.X (XX.XX) really means? I note that you asked about a table like this before (https://communities.sas.com/t5/SAS-Programming/P-value-for-this-situation/m-p/579958) and never provided additional information. Because without additional information, we can't proceed.

Re: How to calculate standardized difference and p value

VinnyR — Wed, 11 Sep 2019 20:56:25 GMT

Hi Paige,

xx.x (xx.xx) are the mean and sd [Mean (SD)], in which mean will be presented with maximum one decimal and Standard Deviation (sd) will be presented with maximum 2 decimal points.

This table is to show "Summary of Demographics and other baseline characteristics". The purpose is to present the summary statistics and the standardized Difference and the p-value to compare the control drug with the study drug

Thanks,

Vinny

Re: How to calculate standardized difference and p value

PaigeMiller — Wed, 11 Sep 2019 22:30:52 GMT

Is the thing you are measuring continuous (like temperature)? Is it normally distributed? P-value for what hypothesis?

Please explain what this is all about. Don't make us guess.