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Truelove & Witts 1955 Ulcerative Colitis Severity Calculator
x402
Truelove & Witts 1955 Ulcerative Colitis Severity 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).
Classifies ulcerative colitis severity as mild, moderately severe, or severe using the original Truelove & Witts 1955 criteria based on stool frequency, macroscopic blood, and systemic flags.
Price / call$0.005
Success—
StatusUnknown
How this service works
Truelove and Witts 1955 ulcerative colitis severity. severe iff stools_per_day >= 6 with macroscopic blood and at least one of fever, tachycardia, anemia, and esr_raised; mild iff stools_per_day <= 4, macroscopic_blood false, and no systemic flags; otherwise moderately_severe. Caller assigns flags from the 1955 table (fever mean evening >37.5 C or 37.8 C on 2 of 4 days; pulse >90; Hb 75% or less; ESR >30). magent does not examine the patient. Not a diagnosis, not Mayo UC, not PUCAI.
Output
Returns a severity classification of mild, moderately severe, or severe according to the original Truelove & Witts 1955 table, derived from stool frequency, macroscopic blood presence, and the four systemic flags (fever, tachycardia, anemia, ESR raised). Does not diagnose; does not apply Mayo UC or PUCAI criteria.
Example use cases
Triage severe UC flare in ED
“I have a patient in the ED with 8 bloody stools per day, macroscopic blood, fever, and tachycardia but no anemia and ESR not raised — use the Truelove Witts 1955 score to tell me if this is a severe UC flare.”
Classify mild outpatient UC activity
“My outpatient has 3 stools per day with no macroscopic blood, no fever, no tachycardia, no anemia, and ESR not raised — run the original 1955 Truelove Witts classification and tell me their severity tier.”
Document UC severity for gastro referral
“For the referral letter I need the Truelove Witts 1955 severity class: the patient has 5 stools daily with macroscopic blood, no fever, no tachycardia, no anemia, ESR not raised.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/truelove_wittsWhen to prefer
Use this endpoint when you specifically need the original Truelove & Witts 1955 three-tier severity classification (mild / moderately severe / severe) for ulcerative colitis, as opposed to the Mayo UC score, PUCAI (pediatric), or other IBD indices. Ideal for clinical documentation, triage decision support, or referral letters where the 1955 criteria are required by protocol.
Side effects
- Missing required query parameters (stools_per_day, macroscopic_blood, fever, tachycardia, anemia, esr_raised) returns a 400-level error
- stools_per_day outside the expected integer range (0–40) may produce unexpected results
- Payment not provided or insufficient USDC via x402 protocol returns a 402 Payment Required error
- Boolean flags incorrectly assigned by caller (e.g. using a non-1955 definition of anemia) will yield a classification that does not reflect the original criteria
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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