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QIDS-SR16 Score Calculator (Rush 2003)
x402
QIDS-SR16 Score Calculator (Rush 2003) 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).
Computes the Quick Inventory of Depressive Symptomatology Self-Report (QIDS-SR16) total score and severity category from 16 caller-supplied item ratings using the Rush 2003 domain aggregation rules.
Price / call$0.005
Success—
StatusUnknown
How this service works
Rush 2003 QIDS-SR16 from 16 caller-assigned integers 0-3 mapped to nine DSM-IV domains. Sleep is the max of four sleep items; appetite/weight is the max of four appetite and weight items; psychomotor is the max of retardation and agitation; remaining items add as published. Total 0-27. Severity: 0-5 none, 6-10 mild, 11-15 moderate, 16-20 severe, 21-27 very_severe. magent does not interpret items or administer a depression interview. Not a diagnosis, not QIDS-C, not IDS-30, and not PHQ-9.
Output
Returns the QIDS-SR16 total score (integer 0-27) derived from nine DSM-IV domains using Rush 2003 aggregation rules (sleep = max of four sleep items; appetite/weight = max of four appetite/weight items; psychomotor = max of retardation and agitation; remaining six items added directly), plus a severity label: none (0-5), mild (6-10), moderate (11-15), severe (16-20), or very_severe (21-27).
Example use cases
Score a completed QIDS-SR16 survey
“I have a patient's completed QIDS-SR16 self-report: sleep_onset=2, mid_nocturnal=1, early_morning=2, hypersomnia=0, sad_mood=3, decreased_appetite=0, increased_appetite=1, decreased_weight=0, increased_weight=2, concentration=2, self_view=2, suicidal_ideation=1, interest=3, energy=2, psychomotor_retardation=1, psychomotor_agitation=0 — what is their total score and severity category?”
Track depression severity over time
“My app collected QIDS-SR16 item responses this week: sleep_onset=0, mid_nocturnal=1, early_morning=0, hypersomnia=0, sad_mood=1, decreased_appetite=1, increased_appetite=0, decreased_weight=0, increased_weight=0, concentration=1, self_view=1, suicidal_ideation=0, interest=1, energy=1, psychomotor_retardation=0, psychomotor_agitation=0 — compute the Rush 2003 domain-aggregated total so I can store it in the trend chart.”
Research pipeline batch scoring
“For a research dataset record, score these QIDS-SR16 item values using the Rush 2003 rules: sleep_onset=3, mid_nocturnal=2, early_morning=3, hypersomnia=1, sad_mood=3, decreased_appetite=2, increased_appetite=0, decreased_weight=2, increased_weight=0, concentration=3, self_view=3, suicidal_ideation=2, interest=3, energy=3, psychomotor_retardation=2, psychomotor_agitation=1 — give me the total and whether it falls in the severe or very_severe range.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/qidsWhen to prefer
Use this endpoint when you need to programmatically score a completed QIDS-SR16 questionnaire following the exact Rush 2003 domain aggregation rules (max-of-group for sleep and appetite/weight domains) without implementing the scoring logic yourself. Prefer it over PHQ-9 scoring endpoints when the instrument used is specifically the 16-item QIDS self-report. Do not use it to administer the questionnaire, interpret individual items clinically, or as a substitute for the clinician-administered QIDS-C or the full IDS-30.
Side effects
- Missing any of the 16 required query parameters returns a 400 error
- Item values outside 0-3 integer range may cause validation errors
- Non-integer (float or string) values for item scores may be rejected
- Network timeout if the API is unreachable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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