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DELTA-P Score Calculator for LEMS-Associated SCLC
x402
DELTA-P Score Calculator for LEMS-Associated SCLC 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 Titulaer 2011 DELTA-P score to estimate probability of small-cell lung cancer (SCLC) in patients with Lambert-Eaton myasthenic syndrome (LEMS)
Price / call$0.005
Success—
StatusUnknown
How this service works
Titulaer 2011 DELTA-P for SCLC association in Lambert-Eaton myasthenic syndrome. One point each, at or within 3 months of LEMS onset: bulbar weakness (dysarthria/dysphagia/chewing/neck weakness); erectile dysfunction if male (always 0 if female); weight loss ≥5%; smoking at onset; age ≥50; Karnofsky <70. Max 6. Bands low 0-1, intermediate 2, high 3-6. Published SCLC percents for scores 0, 1, 3-6; none for score 2. Not a LEMS diagnosis, not SOX1, and not an SCLC screen.
Output
Returns the integer DELTA-P total score (0–6), the risk band classification (low 0–1, intermediate 2, high 3–6), and the published SCLC percentage associated with that score from Titulaer 2011 where available (note: no published percentage exists for score 2).
Example use cases
SCLC risk stratification at LEMS diagnosis
“I have a newly diagnosed LEMS patient: 58-year-old female, smoker at onset, bulbar weakness present, weight loss of 6%, Karnofsky 65. What is her DELTA-P score and which SCLC risk band does she fall into?”
Ruling out high SCLC risk in young non-smoker
“My LEMS patient is a 43-year-old male, non-smoker, no bulbar weakness, no weight loss, no erectile dysfunction, Karnofsky 90. Can you run the DELTA-P and tell me if he's in the low-risk band?”
Documentation support for oncology referral
“I need to document the DELTA-P score for a 71-year-old male LEMS patient who was smoking at onset, has bulbar weakness, lost 8% body weight, has erectile dysfunction, and has a Karnofsky of 50 — what is his total score and associated SCLC probability?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/delta_pWhen to prefer
Use this endpoint when a clinician or clinical decision support agent needs to quantitatively estimate SCLC risk in a known or suspected LEMS patient using the validated Titulaer 2011 DELTA-P criteria. This is not a LEMS diagnostic tool, does not replace SOX1 antibody testing, and is not a general lung cancer screen — it applies only after LEMS is established.
Side effects
- Missing required query parameters (sex, age, or boolean flags) returns a validation error
- Age outside 18–120 range may be rejected
- Sex value not matching 'male' or 'female' enum causes error
- Providing erectile_dysfunction=true for a female patient is silently treated as 0 per Titulaer 2011 rules
- Payment not provided or insufficient results in 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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