{
  "id": "arthritis-clinical-trial-1987",
  "name": "Arthritis Clinical Trial — Treatment Outcomes (1987)",
  "title": "Arthritis Clinical Trial — Treatment Outcomes (1987)",
  "description": "Results of a double-blind clinical trial of 84 patients testing a new treatment for rheumatoid arthritis, recording treatment type, sex, age, and degree of improvement.",
  "category": "health",
  "source": "https://github.com/vincentarelbundock/Rdatasets",
  "source_url": "https://github.com/vincentarelbundock/Rdatasets",
  "updated": "2026-04",
  "record_count": 84,
  "columns": [
    {
      "key": "ID",
      "label": "ID",
      "type": "number"
    },
    {
      "key": "Treatment",
      "label": "Treatment",
      "type": "string"
    },
    {
      "key": "Sex",
      "label": "Sex",
      "type": "string"
    },
    {
      "key": "Age",
      "label": "Age",
      "type": "number"
    },
    {
      "key": "Improved",
      "label": "Improved",
      "type": "string"
    }
  ],
  "rows": [
    {
      "ID": "57",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "27",
      "Improved": "Some"
    },
    {
      "ID": "46",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "29",
      "Improved": "None"
    },
    {
      "ID": "77",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "30",
      "Improved": "None"
    },
    {
      "ID": "17",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "32",
      "Improved": "Marked"
    },
    {
      "ID": "36",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "46",
      "Improved": "Marked"
    },
    {
      "ID": "23",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "58",
      "Improved": "Marked"
    },
    {
      "ID": "75",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "59",
      "Improved": "None"
    },
    {
      "ID": "39",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "59",
      "Improved": "Marked"
    },
    {
      "ID": "33",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "63",
      "Improved": "None"
    },
    {
      "ID": "55",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "63",
      "Improved": "None"
    },
    {
      "ID": "30",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "64",
      "Improved": "None"
    },
    {
      "ID": "5",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "64",
      "Improved": "Some"
    },
    {
      "ID": "63",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "69",
      "Improved": "None"
    },
    {
      "ID": "83",
      "Treatment": "Treated",
      "Sex": "Male",
      "Age": "70",
      "Improved": "Marked"
    },
    {
      "ID": "66",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "23",
      "Improved": "None"
    },
    {
      "ID": "40",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "32",
      "Improved": "None"
    },
    {
      "ID": "6",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "37",
      "Improved": "Some"
    },
    {
      "ID": "7",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "41",
      "Improved": "None"
    },
    {
      "ID": "72",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "41",
      "Improved": "Marked"
    },
    {
      "ID": "37",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "48",
      "Improved": "None"
    },
    {
      "ID": "82",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "48",
      "Improved": "Marked"
    },
    {
      "ID": "53",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "55",
      "Improved": "Marked"
    },
    {
      "ID": "79",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "55",
      "Improved": "Marked"
    },
    {
      "ID": "26",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "56",
      "Improved": "Marked"
    },
    {
      "ID": "28",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "57",
      "Improved": "Marked"
    },
    {
      "ID": "60",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "57",
      "Improved": "Marked"
    },
    {
      "ID": "22",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "57",
      "Improved": "Marked"
    },
    {
      "ID": "27",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "58",
      "Improved": "None"
    },
    {
      "ID": "2",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "59",
      "Improved": "Marked"
    },
    {
      "ID": "59",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "59",
      "Improved": "Marked"
    },
    {
      "ID": "62",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "60",
      "Improved": "Marked"
    },
    {
      "ID": "84",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "61",
      "Improved": "Marked"
    },
    {
      "ID": "64",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "62",
      "Improved": "Some"
    },
    {
      "ID": "34",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "62",
      "Improved": "Marked"
    },
    {
      "ID": "58",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "66",
      "Improved": "Marked"
    },
    {
      "ID": "13",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "67",
      "Improved": "Marked"
    },
    {
      "ID": "61",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "68",
      "Improved": "Some"
    },
    {
      "ID": "65",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "68",
      "Improved": "Marked"
    },
    {
      "ID": "11",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "69",
      "Improved": "None"
    },
    {
      "ID": "56",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "69",
      "Improved": "Some"
    },
    {
      "ID": "43",
      "Treatment": "Treated",
      "Sex": "Female",
      "Age": "70",
      "Improved": "Some"
    },
    {
      "ID": "9",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "37",
      "Improved": "None"
    },
    {
      "ID": "14",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "44",
      "Improved": "None"
    },
    {
      "ID": "73",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "50",
      "Improved": "None"
    },
    {
      "ID": "74",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "51",
      "Improved": "None"
    },
    {
      "ID": "25",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "52",
      "Improved": "None"
    },
    {
      "ID": "18",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "53",
      "Improved": "None"
    },
    {
      "ID": "21",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "59",
      "Improved": "None"
    },
    {
      "ID": "52",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "59",
      "Improved": "None"
    },
    {
      "ID": "45",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "62",
      "Improved": "None"
    },
    {
      "ID": "41",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "62",
      "Improved": "None"
    },
    {
      "ID": "8",
      "Treatment": "Placebo",
      "Sex": "Male",
      "Age": "63",
      "Improved": "Marked"
    },
    {
      "ID": "80",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "23",
      "Improved": "None"
    },
    {
      "ID": "12",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "30",
      "Improved": "None"
    },
    {
      "ID": "29",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "30",
      "Improved": "None"
    },
    {
      "ID": "50",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "31",
      "Improved": "Some"
    },
    {
      "ID": "38",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "32",
      "Improved": "None"
    },
    {
      "ID": "35",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "33",
      "Improved": "Marked"
    },
    {
      "ID": "51",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "37",
      "Improved": "None"
    },
    {
      "ID": "54",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "44",
      "Improved": "None"
    },
    {
      "ID": "76",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "45",
      "Improved": "None"
    },
    {
      "ID": "16",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "46",
      "Improved": "None"
    },
    {
      "ID": "69",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "48",
      "Improved": "None"
    },
    {
      "ID": "31",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "49",
      "Improved": "None"
    },
    {
      "ID": "20",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "51",
      "Improved": "None"
    },
    {
      "ID": "68",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "53",
      "Improved": "None"
    },
    {
      "ID": "81",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "54",
      "Improved": "None"
    },
    {
      "ID": "4",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "54",
      "Improved": "None"
    },
    {
      "ID": "78",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "54",
      "Improved": "Marked"
    },
    {
      "ID": "70",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "55",
      "Improved": "Marked"
    },
    {
      "ID": "49",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "57",
      "Improved": "None"
    },
    {
      "ID": "10",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "57",
      "Improved": "Some"
    },
    {
      "ID": "47",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "58",
      "Improved": "Some"
    },
    {
      "ID": "44",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "59",
      "Improved": "Some"
    },
    {
      "ID": "24",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "59",
      "Improved": "Marked"
    },
    {
      "ID": "48",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "61",
      "Improved": "None"
    },
    {
      "ID": "19",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "63",
      "Improved": "Some"
    },
    {
      "ID": "3",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "64",
      "Improved": "None"
    },
    {
      "ID": "67",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "65",
      "Improved": "Marked"
    },
    {
      "ID": "32",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "66",
      "Improved": "None"
    },
    {
      "ID": "42",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "66",
      "Improved": "None"
    },
    {
      "ID": "15",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "66",
      "Improved": "Some"
    },
    {
      "ID": "71",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "68",
      "Improved": "Some"
    },
    {
      "ID": "1",
      "Treatment": "Placebo",
      "Sex": "Female",
      "Age": "74",
      "Improved": "Marked"
    }
  ],
  "meta": {
    "title": "Arthritis Clinical Trial — Treatment Outcomes (1987) - Free Download",
    "description": "Results of a double-blind clinical trial of 84 patients testing a new treatment for rheumatoid arthritis, recording treatment type, sex, age, and degree of improvement. Contains 84 records. Download in Excel, CSV, PDF formats.",
    "seo_title": "Arthritis Clinical Trial — Treatment Outcomes (1987) | ListBase",
    "seo_description": "Download Arthritis Clinical Trial — Treatment Outcomes (1987) — 84 records. Available in Excel, CSV, PDF formats.",
    "key_takeaways": [
      "Contains 84 records / 5 fields",
      "Available for free download in Excel, CSV, and PDF formats",
      "Data sourced from: https://github.com/vincentarelbundock/Rdatasets"
    ]
  }
}