Kim 2000 revised natural history model for primary sclerosing cholangitis (no hi
Kim 2000 revised natural history model for primary sclerosing cholangitis (no histologic stage). R = 0.03*age_years + 0.54*ln(bilirubin_mg_dL) + 0.54*ln(AST_U_L) + 1.24*variceal_bleeding - 0.84*albumin_g_dL. Natural log. Returns R only; does not look up unpublished survival percents or invent risk bands. Not a transplant listing, biopsy order, PSC diagnosis, or lab assay. Not the original Mayo PSC biopsy model.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
267 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/psc_revised
| Category | Everything else |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 267 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"age_years": 55,
"albumin_g_dl": 3,
"ast_u_l": 120,
"bilirubin_mg_dl": 5,
"variceal_bleeding": true
},
{
"age_years": 55,
"albumin_g_dl": 3,
"ast_u_l": 120,
"bilirubin_mg_dl": 5,
"variceal_bleeding": true
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"age_years": {
"description": "Age in whole years (18-120, magent clamp). Kim 2000 uses age in years in the R equation.",
"type": "integer"
},
"albumin_g_dl": {
"description": "Serum albumin in g/dL (1.0-6.0, magent clamp). Must be positive. Kim 2000 uses g/dL. magent does not assay albumin.",
"type": "number"
},
"ast_u_l": {
"description": "Aspartate aminotransferase in U/L (1-10000, magent clamp). Must be positive. magent does not assay AST.",
"type": "number"
},
"bilirubin_mg_dl": {
"description": "Total bilirubin in mg/dL (0.1-40, magent clamp). Must be positive; natural log is undefined at 0. Kim 2000 uses mg/dL. magent does not assay bilirubin.",
"type": "number"
},
"variceal_bleeding": {
"description": "History of variceal bleeding as assigned by the caller (Kim 2000): true (1) or false (0). magent does not diagnose bleeding.",
"type": "boolean"
}
},
"required": [
"age_years",
"bilirubin_mg_dl",
"ast_u_l",
"albumin_g_dl",
"variceal_bleeding"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}