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ACR/EULAR PMR classification criteria

ACR/EULAR PMR

Apply the 2012 EULAR/ACR polymyalgia rheumatica classification criteria (Dasgupta Table 4): require age ≥50, bilateral shoulder aching, and abnormal CRP and/or ESR, then return the clinical score with or without optional ultrasound and whether the published cut point classifies PMR. Not a PMR diagnosis.

LIVE $0.005 USDC GET /api/calc/acr_eular_pmr

Markdown: /docs/acr-eular-pmr.md · Canonical: https://magentlab.com/docs/acr-eular-pmr

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

What it computes

Apply the 2012 EULAR/ACR polymyalgia rheumatica classification criteria (Dasgupta Table 4): require age ≥50, bilateral shoulder aching, and abnormal CRP and/or ESR, then return the clinical score with or without optional ultrasound and whether the published cut point classifies PMR. Not a PMR diagnosis.

When to use

When an agent already has caller-assigned Dasgupta 2012 required criteria and scoring items and needs the published PMR classification result for research, not a PMR diagnosis.

When not to use

• Not a medical device and not a PMR diagnosis. These criteria are not meant for diagnostic purposes (Dasgupta 2012).
• Required criteria (age 50–120, bilateral shoulder aching, and abnormal CRP and/or ESR) must be met or the request is HTTP 400 and is not scored.
• magent does not assay CRP, ESR, RF, or ACPA and does not perform ultrasound. Ultrasound items apply only when include_ultrasound is true.
• Classification criteria for research, not a treatment or glucocorticoid-start decision.

Formula

ACR/EULAR 2012 PMR classification (Dasgupta Table 4): required age 50–120, bilateral_shoulder_aching true, abnormal_crp_or_esr true (else do not score). Score = morning_stiffness_gt_45 2 + hip_pain_or_limited_rom 1 + rf_or_acpa_absent 2 + other_joint_pain_absent 1. Without ultrasound: max 6, classified iff score ≥4. With ultrasound: add us_shoulder_and_hip 1 + us_both_shoulders 1; max 8, classified iff score ≥5. Not a diagnosis (not meant for diagnostic purposes)

Citation

Title

2012 provisional classification criteria for polymyalgia rheumatica: a European League Against Rheumatism/American College of Rheumatology collaborative initiative

Authors

Dasgupta B, Cimmino MA, Maradit-Kremers H, Schmidt WA, Schirmer M, Salvarani C, Bachta A, Dejaco C, Duftner C, Jensen HS, Poór G, Kaposi NP, Mandl P, Balint PV, Schmidt Z, Iagnocco A, Nannini C, Cantini F, Macchioni P, Pipitone N, Amo MD, Espígol-Frigolé G, Cid MC, Martínez-Taboada VM, Nordborg E, Direskeneli H, Aydin SZ, Ahmed K, Hazleman B, Silverman B, Pease C, Wakefield RJ, Luqmani R, Abril A, Michet CJ, Mazlumzadeh M, Salvarani C

Source

Ann Rheum Dis. 2012;71(4):484-492

DOI

10.1136/annrheumdis-2011-200329

Worked example

Also searched as

• ACR EULAR PMR
• 2012 PMR classification criteria
• Dasgupta 2012 PMR
• polymyalgia rheumatica classification
• EULAR ACR PMR score
• PMR ultrasound classification
• ACR/EULAR 2012 PMR
• provisional PMR classification

Try

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

/api/calc/acr_eular_pmr?age=70&bilateral_shoulder_aching=true&abnormal_crp_or_esr=true&morning_stiffness_gt_45=true&hip_pain_or_limited_rom=true&rf_or_acpa_absent=true&other_joint_pain_absent=true&include_ultrasound=false

Full URL: https://api.magentlab.com/api/calc/acr_eular_pmr?age=70&bilateral_shoulder_aching=true&abnormal_crp_or_esr=true&morning_stiffness_gt_45=true&hip_pain_or_limited_rom=true&rf_or_acpa_absent=true&other_joint_pain_absent=true&include_ultrasound=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/acr_eular_pmr?age=70&bilateral_shoulder_aching=true&abnormal_crp_or_esr=true&morning_stiffness_gt_45=true&hip_pain_or_limited_rom=true&rf_or_acpa_absent=true&other_joint_pain_absent=true&include_ultrasound=false"

Parameters

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/acr_eular_pmr Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

• 1 to 25 items. Each item uses the same keys as the GET query parameters.
• POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
• 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": [
    {
      "abnormal_crp_or_esr": "true",
      "age": "70",
      "bilateral_shoulder_aching": "true",
      "hip_pain_or_limited_rom": "true",
      "include_ultrasound": "false",
      "morning_stiffness_gt_45": "true",
      "other_joint_pain_absent": "true",
      "rf_or_acpa_absent": "true"
    },
    {
      "abnormal_crp_or_esr": "true",
      "age": "70",
      "bilateral_shoulder_aching": "true",
      "hip_pain_or_limited_rom": "true",
      "include_ultrasound": "false",
      "morning_stiffness_gt_45": "true",
      "other_joint_pain_absent": "true",
      "rf_or_acpa_absent": "true"
    }
  ]
}

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/acr_eular_pmr",
  "items": [
    {
      "components": [
        {
          "factor": "morning_stiffness_gt_45",
          "points": 2,
          "present": true
        },
        {
          "factor": "hip_pain_or_limited_rom",
          "points": 1,
          "present": true
        },
        {
          "factor": "rf_or_acpa_absent",
          "points": 2,
          "present": true
        },
        {
          "factor": "other_joint_pain_absent",
          "points": 1,
          "present": true
        }
      ],
      "algorithm": "without_ultrasound",
      "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": "Dasgupta B, Cimmino MA, Maradit-Kremers H, Schmidt WA, Schirmer M, Salvarani C, Bachta A, Dejaco C, Duftner C, Jensen HS, Poór G, Kaposi NP, Mandl P, Balint PV, Schmidt Z, Iagnocco A, Nannini C, Cantini F, Macchioni P, Pipitone N, Amo MD, Espígol-Frigolé G, Cid MC, Martínez-Taboada VM, Nordborg E, Direskeneli H, Aydin SZ, Ahmed K, Hazleman B, Silverman B, Pease C, Wakefield RJ, Luqmani R, Abril A, Michet CJ, Mazlumzadeh M, Salvarani C",
        "doi": "10.1136/annrheumdis-2011-200329",
        "id": "dasgupta-2012",
        "pmid": "22388996",
        "source": "Ann Rheum Dis. 2012;71(4):484-492",
        "title": "2012 provisional classification criteria for polymyalgia rheumatica: a European League Against Rheumatism/American College of Rheumatology collaborative initiative"
      },
      "formula": "acr_eular_pmr",
      "formula_expression": "ACR/EULAR 2012 PMR classification (Dasgupta Table 4): required age 50–120, bilateral_shoulder_aching true, abnormal_crp_or_esr true (else do not score). Score = morning_stiffness_gt_45 2 + hip_pain_or_limited_rom 1 + rf_or_acpa_absent 2 + other_joint_pain_absent 1. Without ultrasound: max 6, classified iff score ≥4. With ultrasound: add us_shoulder_and_hip 1 + us_both_shoulders 1; max 8, classified iff score ≥5. Not a diagnosis (not meant for diagnostic purposes)",
      "max_score": 6,
      "score": 6,
      "classified": true
    },
    {
      "components": [
        {
          "factor": "morning_stiffness_gt_45",
          "points": 2,
          "present": true
        },
        {
          "factor": "hip_pain_or_limited_rom",
          "points": 1,
          "present": true
        },
        {
          "factor": "rf_or_acpa_absent",
          "points": 2,
          "present": true
        },
        {
          "factor": "other_joint_pain_absent",
          "points": 1,
          "present": true
        }
      ],
      "algorithm": "without_ultrasound",
      "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": "Dasgupta B, Cimmino MA, Maradit-Kremers H, Schmidt WA, Schirmer M, Salvarani C, Bachta A, Dejaco C, Duftner C, Jensen HS, Poór G, Kaposi NP, Mandl P, Balint PV, Schmidt Z, Iagnocco A, Nannini C, Cantini F, Macchioni P, Pipitone N, Amo MD, Espígol-Frigolé G, Cid MC, Martínez-Taboada VM, Nordborg E, Direskeneli H, Aydin SZ, Ahmed K, Hazleman B, Silverman B, Pease C, Wakefield RJ, Luqmani R, Abril A, Michet CJ, Mazlumzadeh M, Salvarani C",
        "doi": "10.1136/annrheumdis-2011-200329",
        "id": "dasgupta-2012",
        "pmid": "22388996",
        "source": "Ann Rheum Dis. 2012;71(4):484-492",
        "title": "2012 provisional classification criteria for polymyalgia rheumatica: a European League Against Rheumatism/American College of Rheumatology collaborative initiative"
      },
      "formula": "acr_eular_pmr",
      "formula_expression": "ACR/EULAR 2012 PMR classification (Dasgupta Table 4): required age 50–120, bilateral_shoulder_aching true, abnormal_crp_or_esr true (else do not score). Score = morning_stiffness_gt_45 2 + hip_pain_or_limited_rom 1 + rf_or_acpa_absent 2 + other_joint_pain_absent 1. Without ultrasound: max 6, classified iff score ≥4. With ultrasound: add us_shoulder_and_hip 1 + us_both_shoulders 1; max 8, classified iff score ≥5. Not a diagnosis (not meant for diagnostic purposes)",
      "max_score": 6,
      "score": 6,
      "classified": true
    }
  ]
}

Response

Example JSON

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

{
  "components": [
    {
      "factor": "morning_stiffness_gt_45",
      "points": 2,
      "present": true
    },
    {
      "factor": "hip_pain_or_limited_rom",
      "points": 1,
      "present": true
    },
    {
      "factor": "rf_or_acpa_absent",
      "points": 2,
      "present": true
    },
    {
      "factor": "other_joint_pain_absent",
      "points": 1,
      "present": true
    }
  ],
  "algorithm": "without_ultrasound",
  "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": "Dasgupta B, Cimmino MA, Maradit-Kremers H, Schmidt WA, Schirmer M, Salvarani C, Bachta A, Dejaco C, Duftner C, Jensen HS, Poór G, Kaposi NP, Mandl P, Balint PV, Schmidt Z, Iagnocco A, Nannini C, Cantini F, Macchioni P, Pipitone N, Amo MD, Espígol-Frigolé G, Cid MC, Martínez-Taboada VM, Nordborg E, Direskeneli H, Aydin SZ, Ahmed K, Hazleman B, Silverman B, Pease C, Wakefield RJ, Luqmani R, Abril A, Michet CJ, Mazlumzadeh M, Salvarani C",
    "doi": "10.1136/annrheumdis-2011-200329",
    "id": "dasgupta-2012",
    "pmid": "22388996",
    "source": "Ann Rheum Dis. 2012;71(4):484-492",
    "title": "2012 provisional classification criteria for polymyalgia rheumatica: a European League Against Rheumatism/American College of Rheumatology collaborative initiative"
  },
  "formula": "acr_eular_pmr",
  "formula_expression": "ACR/EULAR 2012 PMR classification (Dasgupta Table 4): required age 50–120, bilateral_shoulder_aching true, abnormal_crp_or_esr true (else do not score). Score = morning_stiffness_gt_45 2 + hip_pain_or_limited_rom 1 + rf_or_acpa_absent 2 + other_joint_pain_absent 1. Without ultrasound: max 6, classified iff score ≥4. With ultrasound: add us_shoulder_and_hip 1 + us_both_shoulders 1; max 8, classified iff score ≥5. Not a diagnosis (not meant for diagnostic purposes)",
  "max_score": 6,
  "score": 6,
  "classified": true
}

Client errors (HTTP 400)

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

Related tools

• ACR/EULAR gout — Apply the 2015 ACR/EULAR gout classification criteria (Neogi Table 2): require the entry episode, classify immediately if MSU crystals are present, otherwise return the Step 3 score (max 23) and whether score ≥8 classifies gout. Not a gout diagnosis.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, 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

• HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
• exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. 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.