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Major Depression Index (MDI)

Screens for depression.

id

1844

full_title

Major Depression Index (MDI)

short_title

Major Depression Index

med_description

Screens for depression based on clinically significant questions.

description

Screens for depression based on clinically significant questions.

keywords

depression screen, MDI, major depression, depression index, depression questionnaire, MDI calc, depression calculator, mdi score, mdi index, mdi assessment, mdi calculator, major depression calc, major depression score, major depression index, major depression, mdi calc, depression calc, depression index, depression diagnosis, depression dx, major depression dx, major depression diagnosis, r/o depression, r/o major depression, rule out depression, r/o major depression, MD inventory, major depressive inventory, major depression inventory, depression inventory, depression inventory calc, depression inventory score

complaint

[ "AMS", "Depressed" ]

formula

Addition of the selected points:

evidence

measurements

[]

information

  • Symptoms are rated based on how the patient has been feeling over the past two weeks.

  • The diagnostic demarcation line indicates at which point a symptom is severe enough to be used in the DSM-IV diagnostic algorithm of major depression.
  • The first three symptoms (mood, interest and fatigue) should have been present at least “most of the time” during the past two weeks, while other symptoms should have been present during “more than half of the time” during the period for diagnosis of major depression.

  • For symptoms 4 and 5 (guilt), only the highest score should be used, as they pertain to the same diagnostic criteria for depression in DSM-IV.

  • For symptoms 8a and 8b (psychomotor changes), only the highest score should be used, as they pertain to the same diagnostic criteria for depression in DSM-IV.

  • For symptoms 10a and 10b (weight/appetite), only the highest score should be used, as they pertain to the same diagnostic criteria for depression in DSM-IV.

  • Major depression is diagnosed if ≥5 of the 9 symptoms (items 4 and 5 combined) have been present in the past two weeks and if symptom 1 or 2 are included in these 5 symptoms.

  • Per the DSM-IV, the 9 diagnostic criteria for Major Depression are (in the order they appear above):

    • Mood

    • Interest

    • Fatigue

    • Guilt

    • Suicidal ideation

    • Concentration

    • Psychomotor changes

    • Sleep

    • Weight/appetite

Interpretation:

Score

Severity of depression

<20

No depression

20-24

Mild

25-29

Moderate

≥30

Severe

refrences

{ "Clinical Practice Guidelines": [ { "href": "", "text": "" } ], "Manufacturer Website": [ { "href": "", "text": "" } ], "Original/Primary Reference": [ { "href": "https://www.ncbi.nlm.nih.gov/pubmed/11578668", "text": "Bech P, Rasmussen NA, Olsen LR, Noerholm V, Abildgaard W. The sensitivity and specificity of the Major Depression Inventory, using the Present State Examination as the index of diagnostic validity. J Affect Disord 2001; 66: 159-164." } ], "Other References": [ { "href": "", "text": "" } ], "Outcomes": [ { "href": "", "text": "" } ], "Validation": [ { "href": "https://www.ncbi.nlm.nih.gov/pubmed/12622314", "text": "Olsen LR, Jensen DV, Noerholm V, Martiny K, Bech P. The internal and external validity of the Major Depression Inventory in measuring severity of depressive states. Psychol Med. 2003; 33(2):351-6." } ], "Validations": [] }

pearls

usecase

  • 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.

reasons

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

next_advice

Patients with depression should be provided with further resources and potentially referred to psychiatry, as well as be screened for emergency psychiatric conditions like suicidal ideation or psychosis.

next_actions

next_management

diseases

[ "Depression/Suicidality" ]

instructions

published

2022-04-21T20:29:02.400Z

purpose

[ "Diagnosis" ]

search_terms

[ "depression", "MDI", "psych", "diagnosis", "suicidality" ]

seo

{ "keywords_en": "depression screen, MDI, major depression, depression index, depression questionnaire, MDI calc, depression calculator, mdi score, mdi index, mdi assessment, mdi calculator, major depression calc, major depression score, major depression index, major depression, mdi calc, depression calc, depression index, depression diagnosis, depression dx, major depression dx, major depression diagnosis, r/o depression, r/o major depression, rule out depression, r/o major depression, MD inventory, major depressive inventory, major depression inventory, depression inventory, depression inventory calc, depression inventory score", "meta_description_en": "Screens for depression based on clinically significant questions." }

specialty

[ "Family Practice", "Internal Medicine", "Primary Care", "Psychiatry" ]

departments

[ "Psychiatric" ]

tags

[]

version_number

1

versions

[]

related

[ { "calcId": 1845, "short_title_en": "QIDS", "slug": "quick-inventory-depressive-symptomatology-qids" }, { "calcId": 1725, "short_title_en": "PHQ-9", "slug": "phq9-patient-health-questionnaire9" }, { "calcId": 1843, "short_title_en": "Hamilton Anxiety Scale", "slug": "hamilton-anxiety-scale" } ]

ismed

false

section

[ "whenToUseViewed", "whyUseViewed", "nextStepsViewed", "evidenceViewed" ]

cleaned_departments

[ "psychiatry" ]

cleaned_use

[ "Patients who identify as depressed or who may be suffering from depression.", "TheQIDScan also be trended over time to help providers and patients alike see trends like improvements in depressive symptoms over time." ]

pub

true

<strong>Ask the patient:</strong> how often have they been bothered by the following over the past 2 weeks?
1. Felt low in spirits or sad?
2. Lost interest in daily activities?
3. Felt lacking in energy and strength?
4. Felt less self-confident?
5. Had a bad conscience or feelings of guilt?
6. Felt that life wasn’t worth living?
7. Had difficulty in concentrating, e.g. when reading the newspaper or watching television?
8a. Felt very restless?
8b. Felt subdued or slowed down?
9. Had trouble sleeping at night?
10a. Suffered from reduced appetite?
10b. Suffered from increased appetite?