{"uid":"cap_cf2kjL-zP6aZCueF9GmHm","slug":"bode-index-calculator-celli-2004-e3bbfef4","name":"BODE Index Calculator (Celli 2004)","description":"Celli 2004 BODE index from BMI (≤21 → 1), FEV1 % predicted (0–3), MMRC dyspnea (0–3), and 6-minute walk in meters (0–3). Returns a 0–10 total and quartile 1–4 (0–2 / 3–4 / 5–6 / 7–10). Deterministic published points with citation. Not a GOLD stage and not a transplant listing.","url":"https://api.magentlab.com/api/calc/bode","method":"GET","headers":{},"bodySchema":{"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":["bmi_kg_m2","fev1_percent_predicted","mmrc","six_minute_walk_m"],"properties":{"mmrc":{"type":"integer","description":"Modified Medical Research Council dyspnea grade as an integer 0-4 (Celli 2004). 0-1 scores 0; 2 scores 1; 3 scores 2; 4 scores 3. magent does not interview the patient."},"bmi_kg_m2":{"type":"number","description":"Body-mass index in kg/m^2 (10-80). Caller-supplied; magent does not compute BMI from height and weight. Celli 2004: >21 scores 0; <=21 scores 1."},"six_minute_walk_m":{"type":"number","description":"Six-minute walk distance in meters (0-1000). Celli 2004 Table 2: >=350 scores 0; 250-349 scores 1; 150-249 scores 2; <=149 scores 3."},"fev1_percent_predicted":{"type":"number","description":"FEV1 percent predicted (10-150). Celli 2004 Table 2: >=65 scores 0; 50-64 scores 1; 36-49 scores 2; <=35 scores 3."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"path":"/api/calc/bode","count":2,"items":[{"mmrc":0,"score":0,"formula":"bode","citation":{"id":"celli-2004","doi":"10.1056/NEJMoa021322","pmid":"14999112","title":"The body-mass index, airflow obstruction, dyspnea, and exercise capacity index in chronic obstructive pulmonary disease","source":"N Engl J Med. 2004;350(10):1005-1012","authors":"Celli BR, Cote CG, Marin JM, et al."},"quartile":1,"bmi_kg_m2":24,"max_score":10,"components":[{"value":24,"factor":"bmi","points":0,"present":false},{"value":70,"factor":"fev1","points":0,"present":false},{"value":0,"factor":"mmrc","points":0,"present":false},{"value":400,"factor":"six_minute_walk","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.","six_minute_walk_m":400,"formula_expression":"BODE = bmi_points + fev1_points + mmrc_points + walk_points; BMI <=21 -> 1 else 0; FEV1% >=65 -> 0, 50-64 -> 1, 36-49 -> 2, <=35 -> 3; MMRC 0-1 -> 0, 2 -> 1, 3 -> 2, 4 -> 3; 6MWD m >=350 -> 0, 250-349 -> 1, 150-249 -> 2, <=149 -> 3; quartiles 0-2 / 3-4 / 5-6 / 7-10; max 10","fev1_percent_predicted":70},{"mmrc":0,"score":0,"formula":"bode","citation":{"id":"celli-2004","doi":"10.1056/NEJMoa021322","pmid":"14999112","title":"The body-mass index, airflow obstruction, dyspnea, and exercise capacity index in chronic obstructive pulmonary disease","source":"N Engl J Med. 2004;350(10):1005-1012","authors":"Celli BR, Cote CG, Marin JM, et al."},"quartile":1,"bmi_kg_m2":24,"max_score":10,"components":[{"value":24,"factor":"bmi","points":0,"present":false},{"value":70,"factor":"fev1","points":0,"present":false},{"value":0,"factor":"mmrc","points":0,"present":false},{"value":400,"factor":"six_minute_walk","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.","six_minute_walk_m":400,"formula_expression":"BODE = bmi_points + fev1_points + mmrc_points + walk_points; BMI <=21 -> 1 else 0; FEV1% >=65 -> 0, 50-64 -> 1, 36-49 -> 2, <=35 -> 3; MMRC 0-1 -> 0, 2 -> 1, 3 -> 2, 4 -> 3; 6MWD m >=350 -> 0, 250-349 -> 1, 150-249 -> 2, <=149 -> 3; quartiles 0-2 / 3-4 / 5-6 / 7-10; max 10","fev1_percent_predicted":70}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Sc8ZYZUGqk6wfdUAm91Aq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the BODE index for COPD severity from BMI, FEV1% predicted, MMRC dyspnea grade, and 6-minute walk distance, returning a 0–10 total score and quartile (1–4).","exampleAgentPrompt":"Calculate the BODE index for a COPD patient with a BMI of 19.5, FEV1 of 42% predicted, an MMRC dyspnea grade of 3, and a 6-minute walk distance of 210 meters — give me the total score and quartile.","exampleUseCases":[{"title":"COPD prognosis at clinic visit","prompt":"My patient has a BMI of 22.1, FEV1 at 58% predicted, MMRC grade 2, and walked 320 meters in the 6-minute walk test — what's their BODE score and which quartile does that put them in?"},{"title":"Tracking COPD progression over time","prompt":"Last year this COPD patient scored differently — now their BMI is 18.8, FEV1 is 34% predicted, MMRC is 4, and they only managed 140 meters in the walk test. Can you recalculate their BODE index and quartile to see if they've worsened?"},{"title":"Automated EMR COPD risk flag","prompt":"I have pulmonary function data for a COPD patient: BMI 24.0, FEV1 percent predicted 67, MMRC dyspnea score 1, and 6-minute walk of 390 meters — run the BODE calculation so I can document their risk quartile in the chart."}],"resultDescription":"Returns a BODE total score from 0–10 derived from the four Celli 2004 component subscores, plus a quartile classification (1 = 0–2 points, 2 = 3–4 points, 3 = 5–6 points, 4 = 7–10 points), along with the individual point contributions of each input variable and a published citation.","failureModes":["Missing required parameters (bmi_kg_m2, fev1_percent_predicted, mmrc, six_minute_walk_m) returns a 400 error","BMI outside 10–80 range or FEV1 outside 10–150 range may return a validation error","MMRC value not an integer 0–4 causes a type validation error","6-minute walk distance outside 0–1000 meters may be rejected","Payment not attached or x402 header missing causes a 402 Payment Required response"],"whenToPreferThis":"Use this endpoint when you need a deterministic, citation-backed BODE index calculation for COPD patients per the Celli 2004 criteria — it is ideal for clinical decision support tools, EMR integrations, and research pipelines that require reproducible scoring. Prefer this over manual lookup tables or LLM-based estimation when auditability and exact point mapping (including quartile classification) are required. Note: this does not compute GOLD staging or transplant listing criteria.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:54:30.512Z","isFirstParty":false}