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For the following outcome & explanatory variable please describe the variable ( eg: is it binary/ norminal , etc)? The primary outcome was improvement on

For the following outcome & explanatory variable please describe the variable ( eg: is it binary/ norminal , etc)?

The primary outcome was improvement on the RMDQ between ED discharge and 1 week later.The RMDQ is a 24-item survey that is frequently utilised to assess LBP and accompanying functional disability where 0 means no impairment and 24 means highest impairment.

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