ToolAssay

Ho 2004 day-3 IV-steroid score for severe UC (0–9)

Ho 2004 day-3 IV-steroid score for severe UC (0–9): mean stools (<4 → 0; 4 ≤ x < 6 → 1; 6 ≤ x ≤ 9 → 2; x > 9 → 4), caller-assigned colonic dilatation (+4), albumin <30 g/L (+1; 30 is not low). Failure: 0–1 → 11%, 2–3 → 43%, ≥4 → 85% (ROC ≥4). Not Travis, not Truelove and Witts, not a colectomy order. magent does not count stools, read films, or measure albumin.

Answeringour last check, 2026-09-28
1 of 1checks answered this week
284 msmedian answer time
$0.005listed price per call
$0.005price 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/ho_index

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

DayResultHTTPAskedTime
2026-09-28 valid payment request 402$0.005 284 ms

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "albumin_g_dl": 3.5,
        "albumin_g_l": 35,
        "colonic_dilatation": false,
        "mean_stool_frequency": 3
      },
      {
        "albumin_g_dl": 3.5,
        "albumin_g_l": 35,
        "colonic_dilatation": false,
        "mean_stool_frequency": 3
      }
    ]
  },
  "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": {
                  "albumin_g_dl": {
                    "description": "Serum albumin in g/dL (1-6). Converted as g/L = g/dL \u00d7 10. Provide this or albumin_g_l, not both.",
                    "type": "number"
                  },
                  "albumin_g_l": {
                    "description": "Serum albumin in g/L (10-60). Provide this or albumin_g_dl, not both. Ho 2004 hypoalbuminaemia is <30 g/L (30 is not low). magent does not assay albumin.",
                    "type": "number"
                  },
                  "colonic_dilatation": {
                    "description": "Caller-assigned colonic dilatation (Ho 2004). true scores 4; false scores 0. magent does not read an abdominal film and does not invent a centimetre cutoff.",
                    "type": "boolean"
                  },
                  "mean_stool_frequency": {
                    "description": "Mean stool frequency over the first 3 days of IV steroids, as assigned by the caller (number 0-40). Ho 2004: <4 scores 0; 4 \u2264 x < 6 scores 1; 6 \u2264 x \u2264 9 scores 2; x > 9 scores 4. Exactly 6 and exactly 9 score 2. magent does not count stools.",
                    "type": "number"
                  }
                },
                "required": [
                  "mean_stool_frequency",
                  "colonic_dilatation"
                ],
                "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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