Timothy C. Hain, MD Page last modified: October 23, 2016 Return to testing index
A link to a PDF of the MIDAS test is here.
The MIDAS test is not a diagnostic test for headache but rather it measures the severity of already diagnosed headaches. It is similar to the HIT-6 test, but it emphasizes duration and frequency. It was developed to measure response to medication, and not to diagnose the type of headache.
The MIDAS test mainly measures duration -- it asks questions such as "On how many days in the last 3 months did you miss work or school because of your headaches? ". If you missed every day -- your score for this question alone would be 90 !. There are 5 questions like this, so a total of 450 !
The MIDAS tests is graded as "Severe" for 21 days or more. Thus the MIDAS test has a gigantic space for "severe" -- between 21 to 450.
Validity means that it is statistically robust. It does not mean it is useful. From our discussion above, it is clear that the MIDAS test is not a diagnostic tool -- it is a severity tool, best suited for quantifying response to treatment.