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Padua score

Compute the Barbar 2010 Padua Prediction Score for VTE risk in hospitalized medical patients from age and ten caller-assigned findings.

LIVE $0.005 USDC GET /api/calc/padua

Markdown: /docs/padua.md · Canonical: https://magentlab.com/docs/padua

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Compute the Barbar 2010 Padua Prediction Score for VTE risk in hospitalized medical patients from age and ten caller-assigned findings.

When to use

When an agent needs the published Padua Prediction Score (not Caprini, IMPROVE, or Khorana) for a hospitalized medical patient as in the paper.

When not to use

Not a diagnosis of VTE. magent does not diagnose venous thromboembolism.
Not Caprini, IMPROVE, or Khorana. This tool is the Barbar 2010 Padua Prediction Score only.
Only for hospitalized medical patients as published.
Obesity is a caller-applied BMI ≥30 flag; magent does not take height or weight.
Age 70 is included (scores 1). High risk is score ≥4; scores 0–3 are low risk.

Formula

Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high

Citation

Title: A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score
Authors: Barbar S, Noventa F, Rossetto V, et al.
Source: J Thromb Haemost. 2010;8(11):2450-2457
DOI: 10.1111/j.1538-7836.2010.04044.x

Worked example

All items absent

Given: active_cancer=falseacute_infection_or_rheumatologic_disorder=falseacute_mi_or_ischemic_stroke=falseage=50heart_or_respiratory_failure=falseobesity=falseongoing_hormonal_treatment=falseprevious_vte=falserecent_trauma_or_surgery=falsereduced_mobility=falsethrombophilic_condition=false

Age 50 is not ≥70 → 0; all ten flags false → 0
Score = 0 (max 20); padua_risk low

Active cancer plus age 70 is high

Given: active_cancer=trueacute_infection_or_rheumatologic_disorder=falseacute_mi_or_ischemic_stroke=falseage=70heart_or_respiratory_failure=falseobesity=falseongoing_hormonal_treatment=falseprevious_vte=falserecent_trauma_or_surgery=falsereduced_mobility=falsethrombophilic_condition=false

active_cancer → 3; age 70 ≥ 70 → 1
Score = 4 (max 20); padua_risk high

Also searched as

Padua Prediction Score
Padua VTE score
Barbar Padua score
Padua risk assessment model
hospital medical VTE score
Padua thromboprophylaxis

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/padua?age=50&active_cancer=false&previous_vte=false&reduced_mobility=false&thrombophilic_condition=false&recent_trauma_or_surgery=false&heart_or_respiratory_failure=false&acute_mi_or_ischemic_stroke=false&acute_infection_or_rheumatologic_disorder=false&obesity=false&ongoing_hormonal_treatment=false

Full URL: https://api.magentlab.com/api/calc/padua?age=50&active_cancer=false&previous_vte=false&reduced_mobility=false&thrombophilic_condition=false&recent_trauma_or_surgery=false&heart_or_respiratory_failure=false&acute_mi_or_ischemic_stroke=false&acute_infection_or_rheumatologic_disorder=false&obesity=false&ongoing_hormonal_treatment=false

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/padua?age=50&active_cancer=false&previous_vte=false&reduced_mobility=false&thrombophilic_condition=false&recent_trauma_or_surgery=false&heart_or_respiratory_failure=false&acute_mi_or_ischemic_stroke=false&acute_infection_or_rheumatologic_disorder=false&obesity=false&ongoing_hormonal_treatment=false"

Parameters

Name	Type	Required	Description
`age`	integer	required	Age in years (18-120). Scores 1 when age ≥70; 69 does not score.
`active_cancer`	boolean	required	Active cancer as assigned by the caller (local or distant metastases and/or chemotherapy or radiotherapy in the previous 6 months). true or false. 3 points if true.
`previous_vte`	boolean	required	Previous VTE as assigned by the caller (exclude superficial vein thrombosis). true or false. 3 points if true.
`reduced_mobility`	boolean	required	Reduced mobility as assigned by the caller (bedrest with bathroom privileges ≥3 days). true or false. 3 points if true.
`thrombophilic_condition`	boolean	required	Known thrombophilic condition as assigned by the caller. true or false. 3 points if true.
`recent_trauma_or_surgery`	boolean	required	Recent trauma and/or surgery as assigned by the caller (≤1 month). true or false. 2 points if true.
`heart_or_respiratory_failure`	boolean	required	Heart and/or respiratory failure. true or false. 1 point if true.
`acute_mi_or_ischemic_stroke`	boolean	required	Acute myocardial infarction or ischemic stroke. true or false. 1 point if true.
`acute_infection_or_rheumatologic_disorder`	boolean	required	Acute infection and/or rheumatologic disorder. true or false. 1 point if true.
`obesity`	boolean	required	Obesity as assigned by the caller (BMI ≥30). true or false. magent does not take height or weight. 1 point if true.
`ongoing_hormonal_treatment`	boolean	required	Ongoing hormonal treatment. true or false. 1 point if true.

Bulk (POST)

POST the same path with a JSON items array. Price is n times the GET unit. Invalid items return HTTP 400 before settlement.

POST /api/calc/padua Max 25 unit_amount * n PREVIEW

1 to 25 items. Each item uses the same keys as the GET query parameters.
The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "active_cancer": "false",
      "acute_infection_or_rheumatologic_disorder": "false",
      "acute_mi_or_ischemic_stroke": "false",
      "age": "50",
      "heart_or_respiratory_failure": "false",
      "obesity": "false",
      "ongoing_hormonal_treatment": "false",
      "previous_vte": "false",
      "recent_trauma_or_surgery": "false",
      "reduced_mobility": "false",
      "thrombophilic_condition": "false"
    },
    {
      "active_cancer": "false",
      "acute_infection_or_rheumatologic_disorder": "false",
      "acute_mi_or_ischemic_stroke": "false",
      "age": "50",
      "heart_or_respiratory_failure": "false",
      "obesity": "false",
      "ongoing_hormonal_treatment": "false",
      "previous_vte": "false",
      "recent_trauma_or_surgery": "false",
      "reduced_mobility": "false",
      "thrombophilic_condition": "false"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/padua",
  "items": [
    {
      "components": [
        {
          "factor": "active_cancer",
          "points": 0,
          "present": false
        },
        {
          "factor": "previous_vte",
          "points": 0,
          "present": false
        },
        {
          "factor": "reduced_mobility",
          "points": 0,
          "present": false
        },
        {
          "factor": "thrombophilic_condition",
          "points": 0,
          "present": false
        },
        {
          "factor": "recent_trauma_or_surgery",
          "points": 0,
          "present": false
        },
        {
          "value": 50,
          "factor": "age_ge_70",
          "points": 0,
          "present": false
        },
        {
          "factor": "heart_or_respiratory_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "acute_mi_or_ischemic_stroke",
          "points": 0,
          "present": false
        },
        {
          "factor": "acute_infection_or_rheumatologic_disorder",
          "points": 0,
          "present": false
        },
        {
          "factor": "obesity",
          "points": 0,
          "present": false
        },
        {
          "factor": "ongoing_hormonal_treatment",
          "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.",
      "citation": {
        "authors": "Barbar S, Noventa F, Rossetto V, et al.",
        "doi": "10.1111/j.1538-7836.2010.04044.x",
        "id": "barbar-2010",
        "source": "J Thromb Haemost. 2010;8(11):2450-2457",
        "title": "A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score"
      },
      "formula": "padua",
      "formula_expression": "Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high",
      "max_score": 20,
      "score": 0,
      "age_years": 50,
      "padua_risk": "low"
    },
    {
      "components": [
        {
          "factor": "active_cancer",
          "points": 0,
          "present": false
        },
        {
          "factor": "previous_vte",
          "points": 0,
          "present": false
        },
        {
          "factor": "reduced_mobility",
          "points": 0,
          "present": false
        },
        {
          "factor": "thrombophilic_condition",
          "points": 0,
          "present": false
        },
        {
          "factor": "recent_trauma_or_surgery",
          "points": 0,
          "present": false
        },
        {
          "value": 50,
          "factor": "age_ge_70",
          "points": 0,
          "present": false
        },
        {
          "factor": "heart_or_respiratory_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "acute_mi_or_ischemic_stroke",
          "points": 0,
          "present": false
        },
        {
          "factor": "acute_infection_or_rheumatologic_disorder",
          "points": 0,
          "present": false
        },
        {
          "factor": "obesity",
          "points": 0,
          "present": false
        },
        {
          "factor": "ongoing_hormonal_treatment",
          "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.",
      "citation": {
        "authors": "Barbar S, Noventa F, Rossetto V, et al.",
        "doi": "10.1111/j.1538-7836.2010.04044.x",
        "id": "barbar-2010",
        "source": "J Thromb Haemost. 2010;8(11):2450-2457",
        "title": "A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score"
      },
      "formula": "padua",
      "formula_expression": "Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high",
      "max_score": 20,
      "score": 0,
      "age_years": 50,
      "padua_risk": "low"
    }
  ]
}

Response

Field	Type	Description
`formula`	string	padua
`formula_expression`	string	Exact expression used
`score`	integer	Total points 0-20
`max_score`	integer	Always 20
`padua_risk`	string	low when score is <4; high when score is ≥4. Not a diagnosis.
`age_years`	integer	Age used for the ≥70 criterion
`components`	array	Per-item points
`citation`	object	Barbar 2010 citation
`disclaimer`	string	Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "factor": "active_cancer",
      "points": 0,
      "present": false
    },
    {
      "factor": "previous_vte",
      "points": 0,
      "present": false
    },
    {
      "factor": "reduced_mobility",
      "points": 0,
      "present": false
    },
    {
      "factor": "thrombophilic_condition",
      "points": 0,
      "present": false
    },
    {
      "factor": "recent_trauma_or_surgery",
      "points": 0,
      "present": false
    },
    {
      "value": 50,
      "factor": "age_ge_70",
      "points": 0,
      "present": false
    },
    {
      "factor": "heart_or_respiratory_failure",
      "points": 0,
      "present": false
    },
    {
      "factor": "acute_mi_or_ischemic_stroke",
      "points": 0,
      "present": false
    },
    {
      "factor": "acute_infection_or_rheumatologic_disorder",
      "points": 0,
      "present": false
    },
    {
      "factor": "obesity",
      "points": 0,
      "present": false
    },
    {
      "factor": "ongoing_hormonal_treatment",
      "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.",
  "citation": {
    "authors": "Barbar S, Noventa F, Rossetto V, et al.",
    "doi": "10.1111/j.1538-7836.2010.04044.x",
    "id": "barbar-2010",
    "source": "J Thromb Haemost. 2010;8(11):2450-2457",
    "title": "A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score"
  },
  "formula": "padua",
  "formula_expression": "Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high",
  "max_score": 20,
  "score": 0,
  "age_years": 50,
  "padua_risk": "low"
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
400	`invalid_age`	age must be an integer from 18 to 120 Returned before settlement; you are not charged.
400	`invalid_flag`	boolean clinical flags must be true or false Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

Wells DVT — Compute the Wells deep-vein thrombosis probability score and return three-tier and two-tier bands.

Payment

Required query parameters must be present and valid. Invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

Invalid query parameters return HTTP 400 before settlement. You are not charged.
Settlement finishes before the tool executes (paymentFlow upfront). Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
Execution is timeout-bounded and concurrency-capped.
Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.