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Source1

{
  "resourceType": "Evidence",
  "id": "47740",
  "meta": {
    "versionId": "15",
    "lastUpdated": "2023-12-06T17:49:09.537Z",
    "profile": [
      "http://hl7.org/fhir/uv/ebm/StructureDefinition/comparative-evidence",
      "http://hl7.org/fhir/uv/ebm/StructureDefinition/single-study-evidence"
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  "language": "en",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
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  "url": "https://fevir.net/resources/Evidence/47740",
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        ],
        "text": "FEvIR Object Identifier"
      },
      "system": "https://fevir.net/FOI",
      "value": "47740",
      "assigner": {
        "display": "Computable Publishing LLC"
      }
    }
  ],
  "name": "ComparativeEvidence_Mean_difference_in_HbA1c_between_Surgery_and_Medical_Lifestyle_groups_in_Courcoulas_2014",
  "title": "ComparativeEvidence: Mean difference in HbA1c between Surgery and Medical/Lifestyle groups in Courcoulas 2014",
  "citeAs": "ComparativeEvidence: Mean difference in HbA1c between Surgery and Medical/Lifestyle groups in Courcoulas 2014 [Evidence]. Contributors: Brian S. Alper [Authors/Creators]. In: Fast Evidence Interoperability Resources (FEvIR) Platform, FOI 47740. Revised 2022-05-29. Available at: https://fevir.net/resources/Evidence/47740. Computable resource at: https://fevir.net/resources/Evidence/47740.",
  "status": "active",
  "date": "2022-05-29T11:04:19.228Z",
  "author": [
    {
      "name": "Brian S. Alper"
    }
  ],
  "publisher": "Computable Publishing LLC",
  "contact": [
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          "value": "support@computablepublishing.com"
        }
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  ],
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  "copyright": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
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    {
      "extension": [
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          "valueCodeableConcept": {
            "text": "data source"
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        }
      ],
      "type": "derived-from",
      "targetAttachment": {
        "url": "https://diabetesjournals.org/care/article/39/6/861/29305/Metabolic-Surgery-in-the-Treatment-Algorithm-for",
        "title": "Figure 2C Metabolic Surgery in the Treatment Algorithm for Type 2 Diabetes: A Joint Statement by International Diabetes Organizations [Journal Article]. Contributors: Francesco Rubino, David M Nathan, Robert H Eckel, Philip R Schauer, K George M M Alberti, Paul Z Zimmet, Stefano Del Prato, Linong Ji, Shaukat M Sadikot, William H Herman, Stephanie A Amiel, Lee M Kaplan, Gaspar Taroncher-Oldenburg, David E Cummings, Delegates of the 2nd Diabetes Surgery Summit. In: Diabetes care, PMID 27222544. Published June 2016. Available at: https://pubmed.ncbi.nlm.nih.gov/27222544/."
      }
    }
  ],
  "description": "Mean HbA1c at 12 months in Courcoulas 2014 was 6.6 % in Surgery group (n = 41) and 7.0% in Medical/Lifestyle group (n = 17), mean difference -0.40% (95% CI -0.89% to 0.09%)",
  "variableDefinition": [
    {
      "description": "58 patients aged 25 to 55 with T2DM and BMI 30 to 40",
      "variableRole": "population",
      "observed": {
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        "display": "Courcoulas 2014 Trial Enrollment Group"
      }
    },
    {
      "description": "Roux-en-Y Gastric Bypass, Laparoscopic Adjustable Gastric Banding vs. medical treatment (Medical Weight Management MWM)",
      "variableRole": "exposure",
      "comparatorCategory": "no bariatric surgery",
      "observed": {
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    }
  ],
  "statistic": [
    {
      "description": "mean difference -0.40% (95% CI -0.89% to 0.09%)",
      "note": [
        {
          "text": "Mean HbA1c at 12 months in Courcoulas 2014 was 6.6 % in Surgery group (n = 41) and 7.0% in Medical/Lifestyle group (n = 17)"
        }
      ],
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            "code": "0000457",
            "display": "Mean Difference"
          }
        ]
      },
      "quantity": {
        "value": -0.4,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "sampleSize": {
        "numberOfParticipants": 58,
        "knownDataCount": 58
      },
      "attributeEstimate": [
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          "description": "95% CI  -0.89% to 0.09%",
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                "code": "C53324",
                "display": "Confidence interval"
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            ]
          },
          "level": 0.95,
          "range": {
            "low": {
              "value": -0.89,
              "unit": "%",
              "system": "http://unitsofmeasure.org",
              "code": "%"
            },
            "high": {
              "value": 0.09,
              "unit": "%",
              "system": "http://unitsofmeasure.org",
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}