I am developing a Logistic Regression model in SAS and I have one of the independent variables as Age. I do not have exact age but I have the age buckets. Say 26 Years-30 years as bucket 1, 31 years to 35 years as bucket 2, 36 years to 40 years as bucket 3, and so on. If I include these bucket numbers in the model, then SAS considers it as continuous numeric variable. I want to make SAS understand that these buckets are ordinal. I did not get any useful information regarding this online.

In case I consider this ordinal data as numeric, is it a big mistake?

Can you please help me out.

Thanks a lot in advance

Regards,

Raghu