- Thread starter Jimbo555
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What test should I use to compare pre/post treatment effect in the form of categorical outcome ?

Post treatment groups have shown decrease in the no. of pads used, what test is most suitable for this scenario? (files attached)

Thanks a lot !

Post treatment groups have shown decrease in the no. of pads used, what test is most suitable for this scenario? (files attached)

Thanks a lot !

If so one option might be the McNemar-Bowker test - if there were more categories (you don't have exact number of the >1 group) then I'd suggest Wilcoxon signed rank but not sure how optimal it is with ties.

(if not paired then Cochran-Armtitage trend test)

tbh the difference seems very clear even without a test for your data - the right test will give pvalue <0.001

What is the topic of your research, and what are the exact research questions?

How was your study designed? Which variables were included and exactly how

were they measured? How large is your sample size?

With kind regards

Karabiner

How was your study designed? Which variables were included and exactly how

were they measured? How large is your sample size?

With kind regards

Karabiner

Thanks for your reply

key to know if the data is paired -- I think it is isn 't it ? each individual has a pre and post #pads response.)

If so one option might be the McNemar-Bowker test - if there were more categories (you don't have exact number of the >1 group) then I'd suggest Wilcoxon signed rank but not sure how optimal it is with ties.

(if not paired then Cochran-Armtitage trend test)

tbh the difference seems very clear even without a test for your data - the right test will give pvalue <0.001

If so one option might be the McNemar-Bowker test - if there were more categories (you don't have exact number of the >1 group) then I'd suggest Wilcoxon signed rank but not sure how optimal it is with ties.

(if not paired then Cochran-Armtitage trend test)

tbh the difference seems very clear even without a test for your data - the right test will give pvalue <0.001

I categorized those with pad use >1 as a single category because those with pad uses >1 were thought of as being still incontinent, where those with 0 pad uses could be thought of as being cured and those with 1 pad use as socially continent.

Glad to take any suggestions. Thanks !