FHIR IG analytics

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Narrative

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Source1

{
  "resourceType": "Evidence",
  "id": "179590",
  "meta": {
    "versionId": "11",
    "lastUpdated": "2026-01-07T11:28:51.554Z",
    "profile": [
      "http://hl7.org/fhir/uv/ebm/StructureDefinition/net-effect-contribution"
    ]
  },
  "language": "en",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "url": "https://fevir.net/resources/Evidence/179590",
  "identifier": [
    {
      "type": {
        "coding": [
          {
            "system": "http://terminology.hl7.org/CodeSystem/v2-0203",
            "code": "ACSN",
            "display": "Accession ID"
          }
        ],
        "text": "FEvIR Object Identifier"
      },
      "system": "https://fevir.net/FOI",
      "value": "179590",
      "assigner": {
        "display": "Computable Publishing LLC"
      }
    }
  ],
  "name": "NetEffectContribution_for_ComparativeEvidence_Bypass_surgery_effects_on_Treatment_with_opioids_in_JAMA_2018_Norwegian_cohort_study",
  "title": "NetEffectContribution for ComparativeEvidence: Bypass surgery effects on Treatment with opioids in JAMA 2018 Norwegian cohort study",
  "citeAs": "NetEffectContribution for ComparativeEvidence: Bypass surgery effects on Treatment with opioids in JAMA 2018 Norwegian cohort study [Database Entry: FHIR Evidence Resource]. Contributors: Computable Publishing: Net Effect Generator, Brian S. Alper, MD, MSPH [Authors/Creators]. In: Fast Evidence Interoperability Resources (FEvIR) Platform, FOI 179590. Revised 2026-01-07. Available at: https://fevir.net/resources/Evidence/179590. Computable resource at: https://fevir.net/resources/Evidence/179590#json.",
  "status": "active",
  "author": [
    {
      "name": "Computable Publishing: Net Effect Generator"
    },
    {
      "name": "Brian S. Alper, MD, MSPH"
    }
  ],
  "publisher": "Computable Publishing LLC",
  "contact": [
    {
      "telecom": [
        {
          "system": "email",
          "value": "support@computablepublishing.com"
        }
      ]
    }
  ],
  "copyright": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "description": "This Evidence Resource is referenced in an example for the EBMonFHIR Implementation Guide.",
  "variableDefinition": [
    {
      "description": "Cohort study with baseline data of exposures from November 2005 through July 2010 and follow-up data from 2006 until death or through December 2015 at a tertiary care outpatient center, Vestfold Hospital Trust, Norway. Consecutive treatment-seeking adult patients (n = 2109) with severe obesity assessed (221 patients excluded and 1888 patients included).",
      "variableRole": "population",
      "observed": {
        "reference": "Group/178427",
        "type": "Group",
        "display": "StudyGroup: Severely Obese Adults 2018 Norwegian Cohort"
      }
    },
    {
      "description": "bariatric surgery vs. specialized medical treatment without bariatric surgery",
      "variableRole": "exposure",
      "comparatorCategory": "no bariatric surgery",
      "intended": {
        "reference": "EvidenceVariable/172427",
        "type": "EvidenceVariable",
        "display": "GroupAssignment: Bariatric Surgery vs. no bariatric surgery"
      }
    },
    {
      "description": "Treatment with opioids",
      "variableRole": "outcome",
      "observed": {
        "reference": "EvidenceVariable/104119",
        "type": "EvidenceVariable",
        "display": "OutcomeVariable: Treatment with opioids"
      }
    },
    {
      "extension": [
        {
          "url": "http://hl7.org/fhir/uv/ebm/StructureDefinition/relative-outcome-importance",
          "valueReference": {
            "reference": "ArtifactAssessment/423314",
            "type": "ArtifactAssessment",
            "display": "Outcome Importance Rating of DichotomousIntendedOutcome: Treatment with opioids  for StudyEligibilityCriteria: Eligibility Criteria for Bariatric Surgery Randomized Trial (Diabetes Surgery Study)"
          }
        }
      ],
      "variableRole": "covariate",
      "roleSubtype": {
        "text": "Relative Value Multiplier"
      },
      "observed": {
        "display": "Relative Importance Multiplier"
      }
    }
  ],
  "statistic": [
    {
      "statisticType": {
        "coding": [
          {
            "system": "https://fevir.net/sevco",
            "code": "STATO:0000424",
            "display": "risk difference"
          }
        ]
      },
      "quantity": {
        "value": -71.1
      },
      "attributeEstimate": [
        {
          "type": {
            "coding": [
              {
                "system": "https://fevir.net/sevco",
                "code": "STATO:0000196",
                "display": "confidence interval"
              }
            ]
          },
          "level": 0.95,
          "range": {
            "low": {
              "value": -94.8
            },
            "high": {
              "value": -47.4
            }
          }
        }
      ],
      "modelCharacteristic": [
        {
          "code": {
            "text": "Net effect contribution analysis"
          }
        }
      ]
    }
  ]
}