# DASH Score Calculator (Tosetto 2012) — VTE Recurrence Risk

> DASH Score Calculator (Tosetto 2012) — VTE Recurrence Risk is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Computes the Tosetto 2012 DASH score (D-dimer, Age, Sex, Hormonal therapy) for estimating venous thromboembolism recurrence risk after a first unprovoked VTE, returning the published recurrence risk band without percentages.

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/dash
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dash-score-calculator-tosetto-2012-vte-recurrence-risk-1fc35a45
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xta6UN04HbbJ-a679QlqK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dash-score-calculator-tosetto-2012-vte-recurrence-risk-1fc35a45
```

Example prompt: Calculate the DASH score for a 44-year-old male who had an unprovoked VTE, has an abnormal D-dimer after stopping anticoagulation, and was not on hormonal therapy at the time of the event.

## When to prefer this

Use this endpoint when you need to compute the validated Tosetto 2012 DASH score specifically for patients with a first unprovoked VTE who have completed a course of anticoagulation, and you need a structured risk band for clinical documentation or decision support workflow integration. Prefer this over manual calculation when building automated clinical pathways or EHR-integrated agents that require a reliable, versioned implementation of the DASH rule.

## Known failure modes

- Missing required query parameters (age, sex, abnormal_d_dimer, hormone_use) returns a validation error
- hormone_use set to true when sex is male — schema violation
- age outside 18–120 range may return an error or undefined behavior
- Network or payment (x402) failure results in no score returned

## How this service works

Tosetto 2012 DASH (D-dimer, Age, Sex, Hormonal therapy) after a first unprovoked VTE: abnormal D-dimer after stopping anticoagulation +2, age <50 +1 (age 50 does not score), male +1, hormone use at the initial VTE in women -2. Score -2 to 4. Returns published recurrence bands <=1, 2, and >=3 without percents. Not a medical device and not a duration-of-anticoagulation order.

## Output

Returns the computed DASH score (an integer from -2 to 4) and the corresponding published recurrence risk band (<=1, 2, or >=3), based on the Tosetto 2012 criteria. No percentage recurrence rates are included, consistent with the original publication. The result is informational only and not a clinical order or medical device output.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "age",
      "sex",
      "abnormal_d_dimer",
      "hormone_use"
     ],
     "properties": {
      "age": {
       "type": "integer",
       "description": "Age in years (18-120). Scores 1 when age is <50 (Tosetto 2012). Age 50 does not score."
      },
      "sex": {
       "enum": [
        "female",
        "male"
       ],
       "type": "string",
       "description": "female or male. Male scores 1. Hormone use applies only when female."
      },
      "hormone_use": {
       "type": "boolean",
       "description": "Hormone use at the initial VTE. Required. Scores -2 only when sex is female and true. Must be false when sex is male."
      },
      "abnormal_d_dimer": {
       "type": "boolean",
       "description": "Abnormal D-dimer after stopping anticoagulation (Tosetto 2012). true or false. 2 points if true."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "path": "/api/calc/dash",
  "count": 2,
  "items": [
   {
    "sex": "female",
    "score": 0,
    "formula": "dash",
    "citation": {
     "id": "tosetto-2012",
     "doi": "10.1111/j.1538-7836.2012.04735.x",
     "pmid": "22489957",
     "title": "Predicting disease recurrence in patients with previous unprovoked venous thromboembolism: a proposed prediction score (DASH)",
     "source": "J Thromb Haemost. 2012;10(6):1019-1025",
     "authors": "Tosetto A, Iorio A, Marcucci M, et al."
    },
    "age_years": 60,
    "max_score": 4,
    "components": [
     {
      "factor": "abnormal_d_dimer",
      "points": 0,
      "present": false
     },
     {
      "value": 60,
      "factor": "age_lt_50",
      "points": 0,
      "present": false
     },
     {
      "factor": "male",
      "points": 0,
      "present": false
     },
     {
      "factor": "hormone_use",
      "points": 0,
      "present": false
     }
    ],
    "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
    "recurrence_band": "<=1",
    "formula_expression": "DASH = 2*abnormal_d_dimer + 1*(age<50) + 1*male + (-2)*hormone_use(female only); max 4; recurrence_band <=1 / 2 / >=3"
   },
   {
    "sex": "female",
    "score": 0,
    "formula": "dash",
    "citation": {
     "id": "tosetto-2012",
     "doi": "10.1111/j.1538-7836.2012.04735.x",
     "pmid": "22489957",
     "title": "Predicting disease recurrence in patients with previous unprovoked venous thromboembolism: a proposed prediction score (DASH)",
     "source": "J Thromb Haemost. 2012;10(6):1019-1025",
     "authors": "Tosetto A, Iorio A, Marcucci M, et al."
    },
    "age_years": 60,
    "max_score": 4,
    "components": [
     {
      "factor": "abnormal_d_dimer",
      "points": 0,
      "present": false
     },
     {
      "value": 60,
      "factor": "age_lt_50",
      "points": 0,
      "present": false
     },
     {
      "factor": "male",
      "points": 0,
      "present": false
     },
     {
      "factor": "hormone_use",
      "points": 0,
      "present": false
     }
    ],
    "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
    "recurrence_band": "<=1",
    "formula_expression": 
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dash-score-calculator-tosetto-2012-vte-recurrence-risk-1fc35a45/health.json
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