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Kruis 1984 IBS Score Calculator
x402
Kruis 1984 IBS Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Computes the Kruis 1984 weighted IBS-vs-organic score from caller-assigned symptom and lab flags, returning a numeric score and IBS classification (score ≥ 44 = IBS).
Price / call$0.005
Success—
StatusUnknown
How this service works
Kruis 1984 weighted IBS versus organic score. History: pain/flatulence/irregularity triad +34, duration >2 years +16, characteristic pain descriptors +23, alternating constipation/diarrhea +14. Organic flags: abnormal physical or pathognomonic history -47, ESR >10 mm/h -13, leukocytosis -50, anemia -98, blood in stool -98. IBS iff score >= 44. Caller assigns flags. magent does not examine the patient or run labs. Not a diagnosis, not Manning, not Rome.
Output
Returns the computed Kruis 1984 weighted score (sum of positive and negative weighted flags) and a binary IBS classification indicating whether the score meets or exceeds the 44-point IBS threshold. Does not provide a clinical diagnosis.
Example use cases
Outpatient GI clinic IBS triage
“I have a patient with the classic symptom triad, symptoms over 2 years, characteristic pain descriptors, alternating bowel habits, no red flags on exam, ESR normal, no leukocytosis, no anemia, no blood in stool — can you run the Kruis 1984 score and tell me if it clears the IBS threshold?”
Ruling out IBS when red flags are present
“Patient has abdominal pain and bowel irregularity but also has anemia, leukocytosis, and blood in stool with no classic symptom triad — calculate the Kruis 1984 score to see if this looks more organic than IBS.”
Clinical documentation support
“For my note, run the Kruis IBS calculator: symptom triad present, duration over 2 years, characteristic pain descriptors present, no alternating constipation/diarrhea, no abnormal history or exam finding, ESR not elevated, no leukocytosis, no anemia, no blood — give me the numeric score and the IBS vs organic result.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/kruisWhen to prefer
Use this endpoint when you need to programmatically apply the Kruis 1984 weighted scoring model to distinguish IBS from organic bowel disease and the caller has already determined the boolean status of all 9 required clinical and lab flags. Prefer this over Manning or Rome criteria endpoints when the Kruis 1984 model specifically is required (e.g., for historical comparability, research, or institutional protocol). Do not use this as a substitute for clinical examination, laboratory testing, or formal diagnosis.
Side effects
- Missing required query parameters (any of the 9 boolean flags omitted) returns a 400 or validation error
- Non-boolean values for flag parameters cause a parse or validation error
- Network or payment (x402) failure results in no score being returned
- Miscoded flags by the caller (e.g. marking anemia=true when labs are normal) produce a mathematically valid but clinically incorrect score — the API cannot validate clinical accuracy
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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