Alghamdi 2019 HE-MACS ACS probability from age, sex, caller-assigned observed sw

Alghamdi 2019 HE-MACS ACS probability from age, sex, caller-assigned observed sweating, acute ECG ischaemia, right-arm or shoulder radiation, vomiting, hypotension (SBP <100), and current smoking. Table 2 printed coefficients. Returns probability only; four-group ROC thresholds are in that paper's supplement and are not restated here. magent does not interpret ECG or take a history. Not MACS (Body 2014 biomarkers) or T-MACS. Not a diagnosis.

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Endpoint

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

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "acute_ecg_ischaemia": false,
        "age": 40,
        "current_smoker": false,
        "hypotension": false,
        "pain_radiation_right_arm_or_shoulder": false,
        "sex": "female",
        "sweating_observed": false,
        "vomiting": false
      },
      {
        "acute_ecg_ischaemia": false,
        "age": 40,
        "current_smoker": false,
        "hypotension": false,
        "pain_radiation_right_arm_or_shoulder": false,
        "sex": "female",
        "sweating_observed": false,
        "vomiting": 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": {
                  "acute_ecg_ischaemia": {
                    "description": "Caller-assigned acute ECG ischaemia as used in Alghamdi 2019 (b): ST-deviation or abnormal T inversion (1 if true, 0 if false). magent does not interpret an ECG.",
                    "type": "boolean"
                  },
                  "age": {
                    "description": "Age in years as a continuous linear predictor (g; 18-100, implementation clamp). Alghamdi 2019 Table 2. magent does not read an identity document.",
                    "type": "number"
                  },
                  "current_smoker": {
                    "description": "Current tobacco smoker as assigned by the caller (f; Alghamdi 2019). true or false. magent does not take a smoking history.",
                    "type": "boolean"
                  },
                  "hypotension": {
                    "description": "Hypotension as assigned by the caller (e): systolic BP <100 mm Hg (Alghamdi 2019, dichotomised as in that paper). true or false.",
                    "type": "boolean"
                  },
                  "pain_radiation_right_arm_or_shoulder": {
                    "description": "Pain radiating to the right arm or shoulder as assigned by the caller (c; Alghamdi 2019). true or false. magent does not take a pain history.",
                    "type": "boolean"
                  },
                  "sex": {
                    "description": "Sex used as h in Alghamdi 2019 Table 2 (male = 1, female = 0). male or female, case-insensitive. magent does not examine the patient.",
                    "enum": [
                      "female",
                      "male"
                    ],
                    "type": "string"
                  },
                  "sweating_observed": {
                    "description": "Sweating observed by the treating clinician as assigned by the caller (a; 1 if true, 0 if false). true or false. magent does not examine the patient.",
                    "type": "boolean"
                  },
                  "vomiting": {
                    "description": "Vomiting associated with the pain as assigned by the caller (d; Alghamdi 2019). true or false.",
                    "type": "boolean"
                  }
                },
                "required": [
                  "age",
                  "sex",
                  "sweating_observed",
                  "acute_ecg_ischaemia",
                  "pain_radiation_right_arm_or_shoulder",
                  "vomiting",
                  "hypotension",
                  "current_smoker"
                ],
                "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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