Swede colposcopy score (Strander)

Swede score

Sum five caller-assigned Strander 2005 Swede integers (acetowhiteness, margins_surface, vessels, lesion_size, iodine; each 0-2; max 10) and return the published total and <5 / 5-7 / >=8 bands.

LIVE $0.005 USDC GET /api/calc/swede

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

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

What it computes

Sum five caller-assigned Strander 2005 Swede integers (acetowhiteness, margins_surface, vessels, lesion_size, iodine; each 0-2; max 10) and return the published total and <5 / 5-7 / >=8 bands.

When to use

When an agent has already assigned Strander 2005 Table I 0-2 integers for acetowhiteness, margins and surface, vessels, lesion size, and iodine and needs the published Swede total and bands, not a CIN diagnosis, see-and-treat order, or Reid index. magent does not read the colposcope.

When not to use

Not a medical device. magent does not diagnose CIN or high-grade dysplasia.
Inputs are caller-assigned Strander 2005 Table I integers (each 0, 1, or 2). magent does not read the colposcope.
Published derivation-set findings: score ≥5 identified all high-grade lesions (HGL); score ≥8 had 90% specificity for HGL. magent reports bands <5, 5-7, and >=8. Score 5 is 5-7. Score 8 is >=8. magent does not invent a see-and-treat order.
Not the Reid colposcopic index. Not a CIN diagnosis.

Formula

Swede = acetowhiteness + margins_surface + vessels + lesion_size + iodine; each caller-assigned 0-2 (Strander 2005 Table I final rounded weights); max 10; bands <5, 5-7, >=8

Citation

Title: The performance of a new scoring system for colposcopy in detecting high-grade dysplasia in the uterine cervix
Authors: Strander B, Ellström-Andersson A, Franzén S, Milsom I, Rådberg T
Source: Acta Obstet Gynecol Scand. 2005;84(10):1013-1017
DOI: 10.1111/j.0001-6349.2005.00895.x

Worked example

Distinct acetowhiteness and iodine, even margins, absent vessels, mid size

Given: acetowhiteness=2iodine=2lesion_size=1margins_surface=2vessels=1

acetowhiteness 2 + margins_surface 2 + vessels 1 + lesion_size 1 + iodine 2
Score = 8 (max 10); swede_band >=8

All items 0

Given: acetowhiteness=0iodine=0lesion_size=0margins_surface=0vessels=0

acetowhiteness 0 + margins_surface 0 + vessels 0 + lesion_size 0 + iodine 0
Score = 0 (max 10); swede_band <5

All items 2

Given: acetowhiteness=2iodine=2lesion_size=2margins_surface=2vessels=2

acetowhiteness 2 + margins_surface 2 + vessels 2 + lesion_size 2 + iodine 2
Score = 10 (max 10); swede_band >=8

Also searched as

Swede score
Swede colposcopy score
Strander Swede score
Strander 2005 colposcopy score
Swede acetowhiteness iodine
colposcopy scoring system cervix
Swede high-grade dysplasia

Try

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

/api/calc/swede?acetowhiteness=2&margins_surface=2&vessels=1&lesion_size=1&iodine=2

Full URL: https://api.magentlab.com/api/calc/swede?acetowhiteness=2&margins_surface=2&vessels=1&lesion_size=1&iodine=2

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/swede?acetowhiteness=2&margins_surface=2&vessels=1&lesion_size=1&iodine=2"

Parameters

Name	Type	Required	Description
`acetowhiteness`	integer	required · 0, 1, 2	Caller-assigned Strander 2005 Table I acetowhiteness (integer 0-2): 0 none/transparent; 1 shady/milky; 2 distinct/stearin (opaque white). magent does not read the colposcope.
`margins_surface`	integer	required · 0, 1, 2	Caller-assigned Strander 2005 Table I margins and surface (integer 0-2): 0 none/diffuse; 1 sharp but irregular/jagged/geographical (satellites); 2 sharp and even, surface-level difference (cuffing). magent does not read the colposcope.
`vessels`	integer	required · 0, 1, 2	Caller-assigned Strander 2005 Table I vessels (integer 0-2): 0 fine/regular; 1 absent; 2 coarse or atypical. magent does not read the colposcope.
`lesion_size`	integer	required · 0, 1, 2	Caller-assigned Strander 2005 Table I lesion size (integer 0-2): 0 <5 mm; 1 5-15 mm or 2 quadrants; 2 >15 mm or 3-4 quadrants or endocervically undefined. magent does not read the colposcope.
`iodine`	integer	required · 0, 1, 2	Caller-assigned Strander 2005 Table I iodine staining (integer 0-2): 0 brown; 1 faintly or patchy yellow; 2 distinct yellow. magent does not read the colposcope.

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/swede 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": [
    {
      "acetowhiteness": "2",
      "iodine": "2",
      "lesion_size": "1",
      "margins_surface": "2",
      "vessels": "1"
    },
    {
      "acetowhiteness": "2",
      "iodine": "2",
      "lesion_size": "1",
      "margins_surface": "2",
      "vessels": "1"
    }
  ]
}

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/swede",
  "items": [
    {
      "components": [
        {
          "value": 2,
          "factor": "acetowhiteness",
          "points": 2,
          "present": true
        },
        {
          "value": 2,
          "factor": "margins_surface",
          "points": 2,
          "present": true
        },
        {
          "value": 1,
          "factor": "vessels",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "lesion_size",
          "points": 1,
          "present": true
        },
        {
          "value": 2,
          "factor": "iodine",
          "points": 2,
          "present": true
        }
      ],
      "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": "Strander B, Ellström-Andersson A, Franzén S, Milsom I, Rådberg T",
        "doi": "10.1111/j.0001-6349.2005.00895.x",
        "id": "strander-2005",
        "pmid": "16181155",
        "source": "Acta Obstet Gynecol Scand. 2005;84(10):1013-1017",
        "title": "The performance of a new scoring system for colposcopy in detecting high-grade dysplasia in the uterine cervix"
      },
      "formula": "swede",
      "formula_expression": "Swede = acetowhiteness + margins_surface + vessels + lesion_size + iodine; each caller-assigned 0-2 (Strander 2005 Table I final rounded weights); max 10; bands <5, 5-7, >=8",
      "max_score": 10,
      "score": 8,
      "acetowhiteness": 2,
      "iodine": 2,
      "lesion_size": 1,
      "margins_surface": 2,
      "swede_band": ">=8",
      "vessels": 1
    },
    {
      "components": [
        {
          "value": 2,
          "factor": "acetowhiteness",
          "points": 2,
          "present": true
        },
        {
          "value": 2,
          "factor": "margins_surface",
          "points": 2,
          "present": true
        },
        {
          "value": 1,
          "factor": "vessels",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "lesion_size",
          "points": 1,
          "present": true
        },
        {
          "value": 2,
          "factor": "iodine",
          "points": 2,
          "present": true
        }
      ],
      "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": "Strander B, Ellström-Andersson A, Franzén S, Milsom I, Rådberg T",
        "doi": "10.1111/j.0001-6349.2005.00895.x",
        "id": "strander-2005",
        "pmid": "16181155",
        "source": "Acta Obstet Gynecol Scand. 2005;84(10):1013-1017",
        "title": "The performance of a new scoring system for colposcopy in detecting high-grade dysplasia in the uterine cervix"
      },
      "formula": "swede",
      "formula_expression": "Swede = acetowhiteness + margins_surface + vessels + lesion_size + iodine; each caller-assigned 0-2 (Strander 2005 Table I final rounded weights); max 10; bands <5, 5-7, >=8",
      "max_score": 10,
      "score": 8,
      "acetowhiteness": 2,
      "iodine": 2,
      "lesion_size": 1,
      "margins_surface": 2,
      "swede_band": ">=8",
      "vessels": 1
    }
  ]
}

Response

Field	Type	Description
`formula`	string	swede
`formula_expression`	string	Exact expression used
`score`	integer	Swede points 0-10
`max_score`	integer	Always 10
`swede_band`	string	Strander 2005 band: <5, 5-7, or >=8. Score ≥5 identified all high-grade lesions in that derivation set; ≥8 had 90% specificity. Score 5 is 5-7. Score 8 is >=8. Not a see-and-treat order.
`acetowhiteness`	integer	Caller-assigned acetowhiteness points 0-2
`margins_surface`	integer	Caller-assigned margins and surface points 0-2
`vessels`	integer	Caller-assigned vessels points 0-2
`lesion_size`	integer	Caller-assigned lesion size points 0-2
`iodine`	integer	Caller-assigned iodine points 0-2
`components`	array	Per-item caller-assigned points
`citation`	object	Strander et al. Acta Obstet Gynecol Scand 2005 citation
`disclaimer`	string	Not a medical device

Example JSON

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

{
  "components": [
    {
      "value": 2,
      "factor": "acetowhiteness",
      "points": 2,
      "present": true
    },
    {
      "value": 2,
      "factor": "margins_surface",
      "points": 2,
      "present": true
    },
    {
      "value": 1,
      "factor": "vessels",
      "points": 1,
      "present": true
    },
    {
      "value": 1,
      "factor": "lesion_size",
      "points": 1,
      "present": true
    },
    {
      "value": 2,
      "factor": "iodine",
      "points": 2,
      "present": true
    }
  ],
  "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": "Strander B, Ellström-Andersson A, Franzén S, Milsom I, Rådberg T",
    "doi": "10.1111/j.0001-6349.2005.00895.x",
    "id": "strander-2005",
    "pmid": "16181155",
    "source": "Acta Obstet Gynecol Scand. 2005;84(10):1013-1017",
    "title": "The performance of a new scoring system for colposcopy in detecting high-grade dysplasia in the uterine cervix"
  },
  "formula": "swede",
  "formula_expression": "Swede = acetowhiteness + margins_surface + vessels + lesion_size + iodine; each caller-assigned 0-2 (Strander 2005 Table I final rounded weights); max 10; bands <5, 5-7, >=8",
  "max_score": 10,
  "score": 8,
  "acetowhiteness": 2,
  "iodine": 2,
  "lesion_size": 1,
  "margins_surface": 2,
  "swede_band": ">=8",
  "vessels": 1
}

Client errors (HTTP 400)

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

HTTP	Code	When
400	`invalid_swede`	Swede score needs acetowhiteness, margins_surface, vessels, lesion_size, and iodine, each 0, 1, or 2. Returned before settlement; you are not charged.
400	`invalid_swede_item`	acetowhiteness, margins_surface, vessels, lesion_size, and iodine must each be 0, 1, or 2 (Strander 2005). 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

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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.