Janssens 2010 diagnostic rule for acute gouty arthritis without joint fluid

Janssens 2010 diagnostic rule for acute gouty arthritis without joint fluid: male 2, previous arthritis attack 2, onset within 1 day 0.5, joint redness 1, MTP1 2.5, hypertension or CVD 1.5, uric acid >5.88 mg/dL or >350 µmol/L 3.5; max 13. Low ≤4, intermediate 4.5–7.5, high ≥8. uric_acid_mg_dl or uric_acid_umol_l, not both. Deterministic published score; not a gout diagnosis; magent does not examine joints or replace synovial crystal analysis.

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Endpoint

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

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "hypertension_or_cvd": false,
        "joint_redness": false,
        "mtp1_involvement": false,
        "onset_within_1_day": false,
        "previous_arthritis_attack": false,
        "sex": "female",
        "uric_acid_mg_dl": 5,
        "uric_acid_umol_l": 300
      },
      {
        "hypertension_or_cvd": false,
        "joint_redness": false,
        "mtp1_involvement": false,
        "onset_within_1_day": false,
        "previous_arthritis_attack": false,
        "sex": "female",
        "uric_acid_mg_dl": 5,
        "uric_acid_umol_l": 300
      }
    ]
  },
  "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": {
                  "hypertension_or_cvd": {
                    "description": "Hypertension or one or more cardiovascular diseases (Janssens 2010). true scores 1.5. magent does not diagnose hypertension or cardiovascular disease.",
                    "type": "boolean"
                  },
                  "joint_redness": {
                    "description": "Joint redness as assigned by the caller (Janssens 2010). true scores 1.0. magent does not examine joints.",
                    "type": "boolean"
                  },
                  "mtp1_involvement": {
                    "description": "Involvement of the first metatarsophalangeal joint (Janssens 2010). true scores 2.5. magent does not examine joints.",
                    "type": "boolean"
                  },
                  "onset_within_1_day": {
                    "description": "Onset within 1 day (Janssens 2010). true scores 0.5. magent does not timestamp onset.",
                    "type": "boolean"
                  },
                  "previous_arthritis_attack": {
                    "description": "Previous patient-reported arthritis attack (Janssens 2010). true scores 2.0. magent does not take a history.",
                    "type": "boolean"
                  },
                  "sex": {
                    "description": "Caller-assigned sex (Janssens 2010). male scores 2.0; female scores 0. magent does not assign sex.",
                    "enum": [
                      "female",
                      "male"
                    ],
                    "type": "string"
                  },
                  "uric_acid_mg_dl": {
                    "description": "Serum uric acid in mg/dL (1-20). Provide this or uric_acid_umol_l, not both. Scores 3.5 when >5.88; 5.88 does not score. magent does not assay uric acid.",
                    "type": "number"
                  },
                  "uric_acid_umol_l": {
                    "description": "Serum uric acid in \u00b5mol/L (60-1190). Provide this or uric_acid_mg_dl, not both. Scores 3.5 when >350; 350 does not score. magent does not assay uric acid.",
                    "type": "number"
                  }
                },
                "required": [
                  "sex",
                  "previous_arthritis_attack",
                  "onset_within_1_day",
                  "joint_redness",
                  "mtp1_involvement",
                  "hypertension_or_cvd"
                ],
                "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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