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Hirschfeld 2000 MDQ Bipolar Screen Calculator
x402
Hirschfeld 2000 MDQ Bipolar Screen Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Scores the Hirschfeld 2000 Mood Disorder Questionnaire (MDQ) from 13 yes/no lifetime manic/hypomanic symptom items plus same-period and functional-impairment flags to determine positive screen status.
Price / call$0.005
Success—
StatusUnknown
How this service works
Hirschfeld 2000 Mood Disorder Questionnaire (MDQ): thirteen caller-assigned yes/no lifetime manic/hypomanic items, 1 point each, max 13. Positive screen requires score ≥7 AND same_period AND moderate_or_serious_problem (that paper: sensitivity 0.73 and specificity 0.90 in a psychiatric outpatient sample). Not a bipolar diagnosis, not a medical device, and not Hirschfeld 2003 general-population cutoff tweaks. magent does not interview the patient.
Output
Returns the numeric MDQ score (0–13) reflecting the count of positive symptom items, and a positive-screen boolean that is true only when score ≥7 AND same_period is true AND moderate_or_serious_problem is true, consistent with Hirschfeld 2000 outpatient sensitivity 0.73 / specificity 0.90. Does not diagnose bipolar disorder.
Example use cases
Psychiatric intake bipolar screening
“I just collected a patient's MDQ responses at intake: they said yes to feeling hyper, irritable, less sleep, more talkative, racing thoughts, easily distracted, more energy, more active, and spending trouble — all symptoms occurred in the same period and caused serious problems. Does this screen positive on the Hirschfeld MDQ?”
EHR automation for MDQ scoring
“Our EHR collects the 13 MDQ yes/no answers plus the same-period and impairment questions — can you automatically score the MDQ and tell me if the threshold of 7 with same-period and moderate-or-serious-problem is met? Here's the data: felt_hyper=true, irritable=false, more_self_confident=true, less_sleep=true, more_talkative=true, racing_thoughts=true, easily_distracted=true, more_energy=true, more_active=true, more_social=false, more_interested_in_sex=false, unusual_risky=true, spending_trouble=false, same_period=true, moderate_or_serious_problem=false.”
Research cohort MDQ positive rate
“I need to flag which subjects in my dataset meet the Hirschfeld 2000 MDQ positive screen criteria — score ≥7 AND symptoms in the same period AND moderate or serious functional problem. Can you run the MDQ calculation for a subject who answered yes to 8 items (felt_hyper, irritable, less_sleep, more_talkative, racing_thoughts, easily_distracted, more_energy, more_active), same_period=true, moderate_or_serious_problem=true?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/mdqWhen to prefer
Use this endpoint when you need a deterministic, validated scoring implementation of the original Hirschfeld 2000 MDQ (not the 2003 general-population variant) with explicit enforcement of all three positive-screen criteria (score ≥7, same-period, moderate-or-serious-problem). Prefer it over manual tallying to avoid arithmetic errors and criterion misapplication in automated clinical workflows or research pipelines.
Side effects
- Missing any of the 15 required query parameters returns a 400 error
- Non-boolean values for any item parameter cause a validation error
- Misinterpreting the result as a clinical diagnosis rather than a screening signal
- Confusing this with the Hirschfeld 2003 general-population cutoff variant
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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