ToolAssay

Prevoo 1995 DAS28-ESR

Prevoo 1995 DAS28-ESR: 0.56*sqrt(tjc28) + 0.28*sqrt(sjc28) + 0.70*ln(esr_mm_h) + 0.014*gh (0-100 mm VAS, not 0-10 CDAI/SDAI). Caller-assigned 28-joint counts 0-28; ESR strictly >0 (typical 1-150). magent does not count joints or assay ESR. Score only; Prevoo 1995 does not publish later EULAR 2.6/3.2/5.1 cutoffs. Not SDAI, not CDAI, not DAS28-CRP. Not a rheumatoid arthritis diagnosis.

Not tested: has real-world effectsour last check, 2026-09-28
0 of 0checks answered this week
n/amedian answer time
$0.005listed price per call
n/aprice 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/das28_esr

CategoryEverything else
Provider hostapi.magentlab.com
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days0 from 0 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "esr_mm_h": 10,
        "gh": 0,
        "sjc28": 0,
        "tjc28": 0
      },
      {
        "esr_mm_h": 10,
        "gh": 0,
        "sjc28": 0,
        "tjc28": 0
      }
    ]
  },
  "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": {
                  "esr_mm_h": {
                    "description": "Caller-assigned erythrocyte sedimentation rate in mm/h. Strictly >0 (typical 1-150 magent clamp). Natural log in the formula. magent does not assay ESR.",
                    "type": "number"
                  },
                  "gh": {
                    "description": "Caller-assigned patient general health on a 0-100 mm VAS (Prevoo 1995). Number 0-100. Not 0-10 CDAI/SDAI centimetres. magent does not examine the patient.",
                    "type": "number"
                  },
                  "sjc28": {
                    "description": "Caller-assigned swollen joint count on the 28-joint set (Prevoo 1995). Integer 0-28. magent does not count joints.",
                    "type": "integer"
                  },
                  "tjc28": {
                    "description": "Caller-assigned tender joint count on the 28-joint set (Prevoo 1995). Integer 0-28. magent does not count joints.",
                    "type": "integer"
                  }
                },
                "required": [
                  "tjc28",
                  "sjc28",
                  "esr_mm_h",
                  "gh"
                ],
                "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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