du Bois 2011 abbreviated four-predictor IPF score from age (<60 → 0, 60–69 → 4,

du Bois 2011 abbreviated four-predictor IPF score from age (<60 → 0, 60–69 → 4, ≥70 → 8), 24-week respiratory hospitalization (true → 14), FVC % predicted (<50 → 18, 51–65 → 13, 66–79 → 8, >80 → 0; 50 and 80 unpublished), and 24-week FVC % change (≤ −10 → 21, > −10 and < −4.9 → 10, ≥ −4.9 → 0). Returns a 0–61 total only. Does not interpolate Table 4 risk percents. Not GAP and not a transplant listing.

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/du_bois

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "age": 70,
        "fvc_change_24wk": -7,
        "fvc_percent_predicted": 55,
        "respiratory_hospitalization": false
      },
      {
        "age": 70,
        "fvc_change_24wk": -7,
        "fvc_percent_predicted": 55,
        "respiratory_hospitalization": false
      }
    ]
  },
  "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": {
                    "description": "Age in years (integer 18-120). du Bois 2011 Table 4: <60 scores 0; 60-69 scores 4; >=70 scores 8.",
                    "type": "integer"
                  },
                  "fvc_change_24wk": {
                    "description": "24-week change in FVC percent predicted, in percentage points (-50 to 50). du Bois 2011 Table 4: <= -10 scores 21; > -10 and < -4.9 scores 10; >= -4.9 scores 0.",
                    "type": "number"
                  },
                  "fvc_percent_predicted": {
                    "description": "FVC percent predicted (10-150). du Bois 2011 Table 4: <50 scores 18; 51-65 scores 13; 66-79 scores 8; >80 scores 0. Exactly 50 or 80 is unpublished.",
                    "type": "number"
                  },
                  "respiratory_hospitalization": {
                    "description": "24-week history of respiratory hospitalization (true or false). du Bois 2011 Table 4: false scores 0; true scores 14.",
                    "type": "boolean"
                  }
                },
                "required": [
                  "age",
                  "respiratory_hospitalization",
                  "fvc_percent_predicted",
                  "fvc_change_24wk"
                ],
                "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"
}

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