turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

Find a Community

- Home
- /
- SAS Programming
- /
- SAS Procedures
- /
- Sample size for a logistic regression polytomic mu...

Topic Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

07-31-2008 12:22 PM

I have to calculate a sample size for a logistic regression polytomic multifactorial.

The ordinal response has 3 modalities (mild, moderate, severe)

There are 9 binary (yes/no) variables to include in the model and 1 variable with 3 modalities.

Thanks by advance.

The ordinal response has 3 modalities (mild, moderate, severe)

There are 9 binary (yes/no) variables to include in the model and 1 variable with 3 modalities.

Thanks by advance.

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

Posted in reply to Cyril_FR

08-06-2008 12:02 PM

I think that the PROC SAS to do that does not exist yet but i found an article (http://www.childrens-mercy.org/stats/weblog2004/OrdinalLogistic.asp) where there is the formula to calculate the sample size.