I have a health status scale measured at 2 different timepoints (baseline and 1 month) with 5 different response levels (0-4). I want to see if there is a statistically significant difference in within group change from baseline to the 1 month time point for each of these response levels. My questions are as follows:
1. Am I using the right code to accomplish this task?
2. If so, which statistics do I report to highlight if the difference is significant?
3. Finally, I think the procedure below gives an overall p-value and not a level-by-level p-value and statistics. How do I test a level by level difference between baseline and 1 month response? Like the difference between response level 0 between baseline and 1 month.
I am running the following proc freq code (analogous to paired t-test for continous variables):