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    Major Depression Index (MDI)

    Screens for depression based on clinically significant questions.
    When to Use
    Why Use
    • Patients who identify as depressed or who may be suffering from depression.
    • The QIDS can also be trended over time to help providers and patients alike see trends like improvements in depressive symptoms over time.

    The MDI can help objectify and rate the severity of a patient's depression.

    Ask the patient: how often have they been bothered by the following over the past 2 weeks?
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5
    At no time
    0
    Some of the time
    +1
    Slightly less than half of the time
    +2
    Slightly more than half of the time
    +3
    Most of the time
    +4
    All the time
    +5

    Result:

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    Next Steps
    Evidence
    Creator Insights
    Dr. Per Bech

    About the Creator

    Per Bech, MD, trained in psychiatry at the University of Copenhagen. He is an active lecturer and researcher in psychiatry and psychometrics. He was recently appointed Professor of Applied Psychometrics at the University of Copenhagen. He has won many awards both within Denmark and abroad for his research and prowess within the field.

    To view Dr. Per Bech's publications, visit PubMed

    Are you Dr. Per Bech? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    About the Creator
    Dr. Per Bech
    Are you Dr. Per Bech?