Aerts 2017 INTERCHEST

Aerts 2017 INTERCHEST: six equally weighted predictors for CAD in primary-care chest pain (age ≥55 male or ≥65 female +1; physician suspected serious +1; history of CAD +1; pain on exertion +1; pressure quality +1; pain reproducible on palpation −1). Range −1 to 5. CAD considered absent iff score <2. Published CAD probability 2.1% (95% CI 1.1–3.9) when <2 and 43.0% (35.8–50.4) when ≥2 in the 13.2% prevalence setting. Not HEART, not EDACS. magent does not examine the chest.

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Endpoint

POST https://api.magentlab.com/api/calc/interchest

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "age": 40,
        "history_of_cad": false,
        "pain_on_exertion": false,
        "pain_reproducible_on_palpation": false,
        "physician_suspected_serious": false,
        "pressure_quality": false,
        "sex": "female"
      },
      {
        "age": 40,
        "history_of_cad": false,
        "pain_on_exertion": false,
        "pain_reproducible_on_palpation": false,
        "physician_suspected_serious": false,
        "pressure_quality": false,
        "sex": "female"
      }
    ]
  },
  "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 (18-120). Combined with sex: female \u226565 or male \u226555 scores 1 (Aerts 2017). Age 54 male does not score; 55 male does. Age 64 female does not; 65 female does. magent computes this; do not send a precomputed flag.",
                    "type": "integer"
                  },
                  "history_of_cad": {
                    "description": "History of coronary artery disease (Aerts 2017). true or false as assigned by the caller. magent does not take a cardiac history. +1 if true.",
                    "type": "boolean"
                  },
                  "pain_on_exertion": {
                    "description": "Pain related to exertion (Aerts 2017). true or false as assigned by the caller. +1 if true.",
                    "type": "boolean"
                  },
                  "pain_reproducible_on_palpation": {
                    "description": "Pain reproducible on chest-wall palpation (Aerts 2017). true or false as assigned by the caller. magent does not examine the chest. \u22121 if true.",
                    "type": "boolean"
                  },
                  "physician_suspected_serious": {
                    "description": "Physician initially suspected a serious diagnosis (Aerts 2017). true or false as assigned by the caller. magent does not examine the chest. +1 if true.",
                    "type": "boolean"
                  },
                  "pressure_quality": {
                    "description": "Pain has a pressure quality (Aerts 2017). true or false as assigned by the caller. +1 if true.",
                    "type": "boolean"
                  },
                  "sex": {
                    "description": "female or male (required). Combined with age: female \u226565 or male \u226555 scores 1 (Aerts 2017).",
                    "enum": [
                      "female",
                      "male"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "age",
                  "sex",
                  "physician_suspected_serious",
                  "history_of_cad",
                  "pain_on_exertion",
                  "pressure_quality",
                  "pain_reproducible_on_palpation"
                ],
                "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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