Electrolytes / glucose · LIVE

IDF-DAR 2021 fasting risk score

IDF-DAR

Sum the Hassanein 2021 IDF-DAR fasting risk table and return low (0–3), moderate (3.5–6), or high (>6).

LIVE $0.005 USDC GET /api/calc/idf_dar

Markdown: /docs/idf-dar.md · Canonical: https://magentlab.com/docs/idf-dar

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

What it computes

Sum the Hassanein 2021 IDF-DAR fasting risk table and return low (0–3), moderate (3.5–6), or high (>6).

When to use

When an agent needs the published 2021 IDF-DAR point total and must not invent a fasting order, a diabetes diagnosis, or an insulin dose.

When not to use

Not a medical device. magent does not assay glucose or advise fasting.
Not a diabetes diagnosis. Not an insulin dose. Risk is a published point total, not a fasting permission.
Hassanein 2021 practical-guidelines table only. Not the 2016 IDF-DAR qualitative tiers. Not a later 2025 or 2026 update.
Diabetes type, duration, hypoglycemia history, treatment, complications, HbA1c band, and eGFR band are caller-assigned. magent does not measure labs or examine the patient.
Bands are low 0–3, moderate 3.5–6, and high >6 as published. Half-points follow the table. Age enters only the >70 / no-home-support frailty band.

Formula

IDF-DAR 2021 = type1 1 / type2 0 + duration>=10 1 + hypoglycemia (unawareness 6.5, recent_severe 5.5, multiple_weekly 3.5, lt_weekly 1, none 0) + hba1c_band (>9% 2, 7.5-9% 1, <7.5% 0) + treatment (multiple_daily_mixed 3, basal_bolus_pump 2.5, once_daily_mixed 2, basal_insulin 1.5, glibenclamide 1, gliclazide_class 0.5, other 0) + smbg (not_conducted 2, suboptimal 1, as_indicated 0) + dka_honc (3mo 3, 6mo 2, 12mo 1, none 0) + mvd (unstable 6.5, stable 2, none 0) + egfr (<30 6.5, 30-45 4, 45-60 2, >60 0) + pregnancy (not_within_targets 6.5, within_targets 3.5, not_pregnant 0) + frailty (impaired_or_frail 6.5, age>70_no_home_support 3.5, none 0) + labor (high 4, moderate 2, none 0) + prior_ramadan_negative 1 + fasting>=16h 1; low 0-3, moderate 3.5-6, high >6; Hassanein 2021 table

Citation

Title: Diabetes and Ramadan: Practical guidelines 2021
Authors: Hassanein M, Afandi B, Yakoob Ahmedani M, et al.
Source: Diabetes Res Clin Pract. 2022;185:109185
DOI: 10.1016/j.diabres.2021.109185

Worked example

Well-controlled T2D on diet/metformin-class, no complications

Given: acute_complication=noneage=50duration_ge_10=falsefasting_hours_ge_16=falseglycaemic_control=lt_7_5home_support=truehypoglycemia=noneimpaired_cognition_or_frail=falsemvd=nonephysical_labor=nonepregnancy=not_pregnantprevious_ramadan_negative=falserenal=egfr_gt_60smbg=as_indicatedtreatment=othertype_1_diabetes=false

Type 2 → 0; duration <10 → 0; no hypoglycemia → 0; HbA1c <7.5% → 0; other therapy (diet/metformin-class) → 0; remaining elements 0
Score = 0; risk = low (0–3). Not a fasting order. Not a diagnosis.

Same baseline, pregnant within targets

Given: acute_complication=noneage=50duration_ge_10=falsefasting_hours_ge_16=falseglycaemic_control=lt_7_5home_support=truehypoglycemia=noneimpaired_cognition_or_frail=falsemvd=nonephysical_labor=nonepregnancy=within_targetsprevious_ramadan_negative=falserenal=egfr_gt_60smbg=as_indicatedtreatment=othertype_1_diabetes=false

Pregnancy within targets → 3.5; remaining elements 0
Score = 3.5; risk = moderate (3.5–6). Not a fasting order.

Also searched as

IDF-DAR risk score
Diabetes and Ramadan fasting risk
Hassanein 2021 Ramadan risk
Ramadan fasting risk stratification
IDF DAR 2021 score

Try

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

/api/calc/idf_dar?age=50&type_1_diabetes=false&duration_ge_10=false&hypoglycemia=none&glycaemic_control=lt_7_5&treatment=other&smbg=as_indicated&acute_complication=none&mvd=none&renal=egfr_gt_60&pregnancy=not_pregnant&impaired_cognition_or_frail=false&home_support=true&physical_labor=none&previous_ramadan_negative=false&fasting_hours_ge_16=false

Full URL: https://api.magentlab.com/api/calc/idf_dar?age=50&type_1_diabetes=false&duration_ge_10=false&hypoglycemia=none&glycaemic_control=lt_7_5&treatment=other&smbg=as_indicated&acute_complication=none&mvd=none&renal=egfr_gt_60&pregnancy=not_pregnant&impaired_cognition_or_frail=false&home_support=true&physical_labor=none&previous_ramadan_negative=false&fasting_hours_ge_16=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/idf_dar?age=50&type_1_diabetes=false&duration_ge_10=false&hypoglycemia=none&glycaemic_control=lt_7_5&treatment=other&smbg=as_indicated&acute_complication=none&mvd=none&renal=egfr_gt_60&pregnancy=not_pregnant&impaired_cognition_or_frail=false&home_support=true&physical_labor=none&previous_ramadan_negative=false&fasting_hours_ge_16=false"

Parameters

Name	Type	Required	Description
`age`	integer	required	Age in years (integer 18-120). Hassanein 2021 frailty band: age >70 with no home support scores 3.5 unless impaired_cognition_or_frail is true (6.5). Age 70 does not enter that band. magent does not read a chart.
`type_1_diabetes`	boolean	required	Caller-assigned diabetes type (Hassanein 2021). true is type 1 and scores 1; false is type 2 and scores 0. magent does not diagnose diabetes.
`duration_ge_10`	boolean	required	Caller-assigned diabetes duration ≥10 years (Hassanein 2021). true scores 1; false (<10 years) scores 0.
`hypoglycemia`	string	required · none, lt_weekly, multiple_weekly, recent_severe, unawareness	Caller-assigned hypoglycemia history (Hassanein 2021; highest applicable). none 0; lt_weekly (less than once per week) 1; multiple_weekly 3.5; recent_severe 5.5; unawareness 6.5. magent does not assay glucose.
`glycaemic_control`	string	required · lt_7_5, 7_5_to_9, gt_9	Caller-assigned HbA1c band (Hassanein 2021). lt_7_5 (<7.5%) scores 0; 7_5_to_9 (7.5–9%) scores 1; gt_9 (>9%) scores 2. magent does not assay glucose or HbA1c.
`treatment`	string	required · other, gliclazide_class, glibenclamide, basal_insulin, once_daily_mixed, basal_bolus_pump, multiple_daily_mixed	Caller-assigned treatment (Hassanein 2021). other (diet or metformin-class, no SU or insulin) 0; gliclazide_class (gliclazide/MR, glimepiride, or repaglinide) 0.5; glibenclamide 1; basal_insulin 1.5; once_daily_mixed 2; basal_bolus_pump 2.5; multiple_daily_mixed 3. Not an insulin dose.
`smbg`	string	required · as_indicated, suboptimal, not_conducted	Caller-assigned self-monitoring of blood glucose (Hassanein 2021). as_indicated 0; suboptimal 1; not_conducted 2. magent does not assay glucose.
`acute_complication`	string	required · none, last_12_months, last_6_months, last_3_months	Caller-assigned DKA or HONC recency (Hassanein 2021). none 0; last_12_months 1; last_6_months 2; last_3_months 3.
`mvd`	string	required · none, stable, unstable	Caller-assigned macrovascular disease (Hassanein 2021). none 0; stable 2; unstable 6.5.
`renal`	string	required · egfr_gt_60, egfr_45_to_60, egfr_30_to_45, egfr_lt_30	Caller-assigned eGFR band in mL/min (Hassanein 2021). egfr_gt_60 (>60) 0; egfr_45_to_60 (45–60) 2; egfr_30_to_45 (30–45) 4; egfr_lt_30 (<30) 6.5. magent does not compute eGFR.
`pregnancy`	string	required · not_pregnant, within_targets, not_within_targets	Caller-assigned pregnancy band (Hassanein 2021). not_pregnant 0; within_targets 3.5; not_within_targets 6.5. magent does not advise fasting.
`impaired_cognition_or_frail`	boolean	required	Caller-assigned impaired cognitive function or frailty (Hassanein 2021). true scores 6.5 and supersedes the age>70 / no-home-support band.
`home_support`	boolean	required	Caller-assigned home support (Hassanein 2021). When age >70 and this is false and impaired_cognition_or_frail is false, frailty scores 3.5. true or false.
`physical_labor`	string	required · none, moderate, high	Caller-assigned physical labour (Hassanein 2021). none 0; moderate 2; high 4.
`previous_ramadan_negative`	boolean	required	Caller-assigned overall negative previous Ramadan experience (Hassanein 2021). true scores 1; false scores 0.
`fasting_hours_ge_16`	boolean	required	Caller-assigned fasting hours ≥16 (location; Hassanein 2021). true scores 1; false (<16 hours) scores 0. magent does not advise fasting.

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/idf_dar 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": [
    {
      "acute_complication": "none",
      "age": "50",
      "duration_ge_10": "false",
      "fasting_hours_ge_16": "false",
      "glycaemic_control": "lt_7_5",
      "home_support": "true",
      "hypoglycemia": "none",
      "impaired_cognition_or_frail": "false",
      "mvd": "none",
      "physical_labor": "none",
      "pregnancy": "not_pregnant",
      "previous_ramadan_negative": "false",
      "renal": "egfr_gt_60",
      "smbg": "as_indicated",
      "treatment": "other",
      "type_1_diabetes": "false"
    },
    {
      "acute_complication": "none",
      "age": "50",
      "duration_ge_10": "false",
      "fasting_hours_ge_16": "false",
      "glycaemic_control": "lt_7_5",
      "home_support": "true",
      "hypoglycemia": "none",
      "impaired_cognition_or_frail": "false",
      "mvd": "none",
      "physical_labor": "none",
      "pregnancy": "not_pregnant",
      "previous_ramadan_negative": "false",
      "renal": "egfr_gt_60",
      "smbg": "as_indicated",
      "treatment": "other",
      "type_1_diabetes": "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/idf_dar",
  "items": [
    {
      "components": [
        {
          "value": false,
          "factor": "diabetes_type",
          "points": 0,
          "present": false
        },
        {
          "value": false,
          "factor": "duration",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "hypoglycemia",
          "points": 0,
          "present": false
        },
        {
          "value": "lt_7_5",
          "factor": "glycaemic_control",
          "points": 0,
          "present": false
        },
        {
          "value": "other",
          "factor": "treatment",
          "points": 0,
          "present": false
        },
        {
          "value": "as_indicated",
          "factor": "smbg",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "acute_complication",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "mvd",
          "points": 0,
          "present": false
        },
        {
          "value": "egfr_gt_60",
          "factor": "renal",
          "points": 0,
          "present": false
        },
        {
          "value": "not_pregnant",
          "factor": "pregnancy",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "frailty",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "physical_labor",
          "points": 0,
          "present": false
        },
        {
          "value": false,
          "factor": "previous_ramadan",
          "points": 0,
          "present": false
        },
        {
          "value": false,
          "factor": "fasting_hours",
          "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": "Hassanein M, Afandi B, Yakoob Ahmedani M, et al.",
        "doi": "10.1016/j.diabres.2021.109185",
        "id": "hassanein-2021",
        "pmid": "35016991",
        "source": "Diabetes Res Clin Pract. 2022;185:109185",
        "title": "Diabetes and Ramadan: Practical guidelines 2021"
      },
      "formula": "idf_dar",
      "formula_expression": "IDF-DAR 2021 = type1 1 / type2 0 + duration>=10 1 + hypoglycemia (unawareness 6.5, recent_severe 5.5, multiple_weekly 3.5, lt_weekly 1, none 0) + hba1c_band (>9% 2, 7.5-9% 1, <7.5% 0) + treatment (multiple_daily_mixed 3, basal_bolus_pump 2.5, once_daily_mixed 2, basal_insulin 1.5, glibenclamide 1, gliclazide_class 0.5, other 0) + smbg (not_conducted 2, suboptimal 1, as_indicated 0) + dka_honc (3mo 3, 6mo 2, 12mo 1, none 0) + mvd (unstable 6.5, stable 2, none 0) + egfr (<30 6.5, 30-45 4, 45-60 2, >60 0) + pregnancy (not_within_targets 6.5, within_targets 3.5, not_pregnant 0) + frailty (impaired_or_frail 6.5, age>70_no_home_support 3.5, none 0) + labor (high 4, moderate 2, none 0) + prior_ramadan_negative 1 + fasting>=16h 1; low 0-3, moderate 3.5-6, high >6; Hassanein 2021 table",
      "age_years": 50,
      "max_score": 50.5,
      "score": 0,
      "risk": "low"
    },
    {
      "components": [
        {
          "value": false,
          "factor": "diabetes_type",
          "points": 0,
          "present": false
        },
        {
          "value": false,
          "factor": "duration",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "hypoglycemia",
          "points": 0,
          "present": false
        },
        {
          "value": "lt_7_5",
          "factor": "glycaemic_control",
          "points": 0,
          "present": false
        },
        {
          "value": "other",
          "factor": "treatment",
          "points": 0,
          "present": false
        },
        {
          "value": "as_indicated",
          "factor": "smbg",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "acute_complication",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "mvd",
          "points": 0,
          "present": false
        },
        {
          "value": "egfr_gt_60",
          "factor": "renal",
          "points": 0,
          "present": false
        },
        {
          "value": "not_pregnant",
          "factor": "pregnancy",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "frailty",
          "points": 0,
          "present": false
        },
        {
          "value": "none",
          "factor": "physical_labor",
          "points": 0,
          "present": false
        },
        {
          "value": false,
          "factor": "previous_ramadan",
          "points": 0,
          "present": false
        },
        {
          "value": false,
          "factor": "fasting_hours",
          "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": "Hassanein M, Afandi B, Yakoob Ahmedani M, et al.",
        "doi": "10.1016/j.diabres.2021.109185",
        "id": "hassanein-2021",
        "pmid": "35016991",
        "source": "Diabetes Res Clin Pract. 2022;185:109185",
        "title": "Diabetes and Ramadan: Practical guidelines 2021"
      },
      "formula": "idf_dar",
      "formula_expression": "IDF-DAR 2021 = type1 1 / type2 0 + duration>=10 1 + hypoglycemia (unawareness 6.5, recent_severe 5.5, multiple_weekly 3.5, lt_weekly 1, none 0) + hba1c_band (>9% 2, 7.5-9% 1, <7.5% 0) + treatment (multiple_daily_mixed 3, basal_bolus_pump 2.5, once_daily_mixed 2, basal_insulin 1.5, glibenclamide 1, gliclazide_class 0.5, other 0) + smbg (not_conducted 2, suboptimal 1, as_indicated 0) + dka_honc (3mo 3, 6mo 2, 12mo 1, none 0) + mvd (unstable 6.5, stable 2, none 0) + egfr (<30 6.5, 30-45 4, 45-60 2, >60 0) + pregnancy (not_within_targets 6.5, within_targets 3.5, not_pregnant 0) + frailty (impaired_or_frail 6.5, age>70_no_home_support 3.5, none 0) + labor (high 4, moderate 2, none 0) + prior_ramadan_negative 1 + fasting>=16h 1; low 0-3, moderate 3.5-6, high >6; Hassanein 2021 table",
      "age_years": 50,
      "max_score": 50.5,
      "score": 0,
      "risk": "low"
    }
  ]
}

Response

Field	Type	Description
`formula`	string	idf_dar
`formula_expression`	string	Exact Hassanein 2021 table expression
`score`	number	IDF-DAR 2021 points; half-points allowed; published range 0 to 50.5
`max_score`	number	50.5 (sum of each element's published maximum)
`risk`	string	low when score is 0–3, moderate when 3.5–6, high when >6 (Hassanein 2021). A band, not a fasting order.
`age_years`	integer	Age in years used for the frailty band
`components`	array	Per-element points
`citation`	object	Hassanein 2021 Diabetes Res Clin Pract citation
`disclaimer`	string	Not-a-device notice

Example JSON

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

{
  "components": [
    {
      "value": false,
      "factor": "diabetes_type",
      "points": 0,
      "present": false
    },
    {
      "value": false,
      "factor": "duration",
      "points": 0,
      "present": false
    },
    {
      "value": "none",
      "factor": "hypoglycemia",
      "points": 0,
      "present": false
    },
    {
      "value": "lt_7_5",
      "factor": "glycaemic_control",
      "points": 0,
      "present": false
    },
    {
      "value": "other",
      "factor": "treatment",
      "points": 0,
      "present": false
    },
    {
      "value": "as_indicated",
      "factor": "smbg",
      "points": 0,
      "present": false
    },
    {
      "value": "none",
      "factor": "acute_complication",
      "points": 0,
      "present": false
    },
    {
      "value": "none",
      "factor": "mvd",
      "points": 0,
      "present": false
    },
    {
      "value": "egfr_gt_60",
      "factor": "renal",
      "points": 0,
      "present": false
    },
    {
      "value": "not_pregnant",
      "factor": "pregnancy",
      "points": 0,
      "present": false
    },
    {
      "value": "none",
      "factor": "frailty",
      "points": 0,
      "present": false
    },
    {
      "value": "none",
      "factor": "physical_labor",
      "points": 0,
      "present": false
    },
    {
      "value": false,
      "factor": "previous_ramadan",
      "points": 0,
      "present": false
    },
    {
      "value": false,
      "factor": "fasting_hours",
      "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": "Hassanein M, Afandi B, Yakoob Ahmedani M, et al.",
    "doi": "10.1016/j.diabres.2021.109185",
    "id": "hassanein-2021",
    "pmid": "35016991",
    "source": "Diabetes Res Clin Pract. 2022;185:109185",
    "title": "Diabetes and Ramadan: Practical guidelines 2021"
  },
  "formula": "idf_dar",
  "formula_expression": "IDF-DAR 2021 = type1 1 / type2 0 + duration>=10 1 + hypoglycemia (unawareness 6.5, recent_severe 5.5, multiple_weekly 3.5, lt_weekly 1, none 0) + hba1c_band (>9% 2, 7.5-9% 1, <7.5% 0) + treatment (multiple_daily_mixed 3, basal_bolus_pump 2.5, once_daily_mixed 2, basal_insulin 1.5, glibenclamide 1, gliclazide_class 0.5, other 0) + smbg (not_conducted 2, suboptimal 1, as_indicated 0) + dka_honc (3mo 3, 6mo 2, 12mo 1, none 0) + mvd (unstable 6.5, stable 2, none 0) + egfr (<30 6.5, 30-45 4, 45-60 2, >60 0) + pregnancy (not_within_targets 6.5, within_targets 3.5, not_pregnant 0) + frailty (impaired_or_frail 6.5, age>70_no_home_support 3.5, none 0) + labor (high 4, moderate 2, none 0) + prior_ramadan_negative 1 + fasting>=16h 1; low 0-3, moderate 3.5-6, high >6; Hassanein 2021 table",
  "age_years": 50,
  "max_score": 50.5,
  "score": 0,
  "risk": "low"
}

Client errors (HTTP 400)

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

HTTP	Code	When
400	`invalid_flag`	boolean clinical flags must be true or false Returned before settlement; you are not charged.
400	`invalid_age`	age must be an integer from 18 to 120 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

Bang diabetes screening — Sum the Bang 2009 Table 2 development screening score for undiagnosed diabetes and return high_risk when the total is ≥5.
FINDRISC — Sum the original Lindström 2003 seven-item Finnish diabetes risk score (FINDRISC, 0–20) and return at_risk when the total is ≥9.

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.