{
  "id": "SQ-LIP-000004",
  "question": "Is lipedema underdiagnosed, and can screening tools help identify it?",
  "question_pt": "O lipedema é subdiagnosticado, e ferramentas de rastreamento podem ajudar a identificá-lo?",
  "knowledge_state": "probable",
  "tags": [
    "Diagnosis",
    "Screening"
  ],
  "keywords": [
    "screening",
    "underdiagnosed",
    "questionnaire",
    "BMI",
    "rastreamento",
    "subdiagnóstico",
    "questionário",
    "IMC"
  ],
  "current_answer": "Because obesity is commonly defined by BMI alone (which ignores fat distribution), lipedema is frequently missed when workup stops at an obesity diagnosis. Self-administered screening questionnaires achieve high classification accuracy in development cohorts and may raise clinical suspicion, but they are not diagnostic on their own.",
  "current_answer_pt": "Como a obesidade é comumente definida apenas pelo IMC (que ignora a distribuição da gordura), o lipedema é frequentemente perdido quando a investigação para no diagnóstico de obesidade. Questionários de rastreamento autoaplicáveis alcançam alta acurácia de classificação em coortes de desenvolvimento e podem aumentar a suspeição clínica, mas não são diagnósticos por si sós.",
  "major_uncertainty": "Screening tools were validated in small specialized-clinic samples against clinical diagnosis only, not against imaging or in primary care.",
  "version": "1.0",
  "updated": "2026-05-30",
  "evidence_direction": {
    "supporting": 3,
    "contradicting": 0,
    "other": 0
  },
  "knowledge_freshness": {
    "pct": 50,
    "sources": 4,
    "newest": 2022,
    "oldest": 2020,
    "label": "mixed"
  },
  "claims": [
    {
      "id": "SCR-LIP-000007",
      "role": "supporting",
      "statement": "Because obesity is commonly defined by BMI alone (which disregards fat distribution), lipedema is frequently underdiagnosed when workup stops at an established obesity diagnosis; ~81% of lipedema patients are classified overweight/obese by BMI."
    },
    {
      "id": "SCR-LIP-000008",
      "role": "supporting",
      "statement": "A self-administered lipedema screening questionnaire achieves a high probability of correct classification (~91%) between women with and without lipedema, supporting its use to raise clinical suspicion."
    },
    {
      "id": "SCR-LIP-000009",
      "role": "supporting",
      "statement": "The Brazilian Portuguese lipedema symptoms questionnaire (QuASiL) was translated, culturally adapted and validated, showing high comprehension and symptom-intensity scores that correlate with limb volume by segmental bioimpedance."
    }
  ],
  "references": [
    "DOI:10.1177/02683555211002340",
    "DOI:10.1590/1677-5449.200114",
    "DOI:10.1590/1677-5449.200049"
  ],
  "cite": "Scientific Claim Registry. Is lipedema underdiagnosed, and can screening tools help identify it?. SQ-LIP-000004 v1.0; 2026-05-30. https://scientificclaims.org/q/SQ-LIP-000004/v1.0.html",
  "versions": [
    {
      "version": "1.0",
      "date": "2026-05-30",
      "url": "https://scientificclaims.org/q/SQ-LIP-000004/v1.0.html"
    }
  ],
  "url": "https://scientificclaims.org/q/SQ-LIP-000004.html",
  "url_pt": "https://scientificclaims.org/pt/q/SQ-LIP-000004.html",
  "version_url": "https://scientificclaims.org/q/SQ-LIP-000004/v1.0.html",
  "license": "CC-BY-4.0",
  "disclaimer": "Evidence-bounded summary; not medical advice."
}