{
  "data": {
    "__count": 1,
    "__licence": {
      "identifier": "CC-BY-4.0",
      "link": "https://creativecommons.org/licenses/by/4.0",
      "name": "Creative Commons Attribution 4.0 International"
    },
    "results": {
      "Date": "2026-06-23 07:57:58",
      "DisorderGroup": "Disorder",
      "ORPHAcode": 221,
      "OrphanetURL": "http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=en&Expert=221",
      "Preferred term": "Dermatomyositis",
      "Prevalence": [
        {
          "PrevalenceClass": "1-9 / 1 000 000",
          "PrevalenceGeographic": "Australia",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "23981756[PMID]",
          "ValMoy": "0.1"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "Australia",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "23981756[PMID]",
          "ValMoy": "1.97"
        },
        {
          "PrevalenceClass": "1-9 / 1 000 000",
          "PrevalenceGeographic": "Argentina",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "23965482[PMID]",
          "ValMoy": "0.32"
        },
        {
          "PrevalenceClass": "1-5 / 10 000",
          "PrevalenceGeographic": "Argentina",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "23965482[PMID]",
          "ValMoy": "10.2"
        },
        {
          "PrevalenceClass": "1-9 / 1 000 000",
          "PrevalenceGeographic": "Spain",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "18053482[PMID]",
          "ValMoy": "0.49"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "United States",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "34549549[PMID]",
          "ValMoy": "1.1"
        },
        {
          "PrevalenceClass": "1-5 / 10 000",
          "PrevalenceGeographic": "United States",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "34549549[PMID]",
          "ValMoy": "13.0"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "Norway",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "24695011[PMID]_ORPHANET",
          "ValMoy": "4.9172"
        },
        {
          "PrevalenceClass": "1-9 / 1 000 000",
          "PrevalenceGeographic": "Sweden",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "28160487[PMID]",
          "ValMoy": "0.32"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "Sweden",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "28160487[PMID]",
          "ValMoy": "3.8"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "Germany",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "36581896[PMID]",
          "ValMoy": "3.5"
        },
        {
          "PrevalenceClass": "1-5 / 10 000",
          "PrevalenceGeographic": "Germany",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "36581896[PMID]",
          "ValMoy": "11.3"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "Worldwide",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Annual incidence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "36581896[PMID]_ORPHANET",
          "ValMoy": "0.9704"
        },
        {
          "PrevalenceClass": "1-9 / 100 000",
          "PrevalenceGeographic": "Worldwide",
          "PrevalenceQualification": "Value and class",
          "PrevalenceType": "Point prevalence",
          "PrevalenceValidationStatus": "Validated",
          "Source": "36581896[PMID]_ORPHANET",
          "ValMoy": "7.5312"
        }
      ],
      "Typology": "Disease"
    }
  },
  "datasetCategory": {
    "lang": "en",
    "name": "Epidemiology of rare diseases"
  },
  "parameters": {
    "path": {
      "ORPHAcode": 221
    },
    "query": {}
  },
  "uri": "https://api.orphadata.com/rd-epidemiology/orphacodes/221"
}