This page is part of the Evidence Based Medicine on FHIR Implementation Guide (v1.0.0-ballot2: STU1 Ballot 2) based on FHIR (HL7® FHIR® Standard) v6.0.0. No current official version has been published yet. For a full list of available versions, see the Directory of published versions
<Evidence xmlns="http://hl7.org/fhir">
<id value="179590"/>
<meta>
<versionId value="9"/>
<lastUpdated value="2025-03-16T09:44:44.324Z"/>
<profile
value="http://hl7.org/fhir/uv/ebm/StructureDefinition/net-effect-contribution"/>
</meta>
<text>
<status value="empty"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p>[No data.]</p></div>
</text>
<extension url="http://hl7.org/fhir/uv/ebm/StructureDefinition/cite-as">
<valueMarkdown
value="NetEffectContribution: Treatment with opioids for Example for GIN 2022 [Database Entry: FHIR Evidence Resource]. Contributors: Brian S. Alper [Authors/Creators]. In: Fast Evidence Interoperability Resources (FEvIR) Platform, FOI 179590. Revised 2025-03-05. Available at: https://fevir.net/resources/Evidence/179590. Computable resource at: https://fevir.net/resources/Evidence/179590#json."/>
</extension>
<url value="https://fevir.net/resources/Evidence/179590"/>
<identifier>
<type>
<coding>
<system value="http://terminology.hl7.org/CodeSystem/v2-0203"/>
<code value="ACSN"/>
<display value="Accession ID"/>
</coding>
<text value="FEvIR Object Identifier"/>
</type>
<system value="urn:ietf:rfc:3986"/>
<value value="https://fevir.net/FOI/179590"/>
<assigner>
<display value="Computable Publishing LLC"/>
</assigner>
</identifier>
<name
value="NetEffectContribution_Treatment_with_opioids_for_Example_for_GIN_2022"/>
<title
value="NetEffectContribution: Treatment with opioids for Example for GIN 2022"/>
<status value="active"/>
<publisher value="Computable Publishing LLC"/>
<contact>
<telecom>
<system value="email"/>
<value value="support@computablepublishing.com"/>
</telecom>
</contact>
<author>
<name value="Brian S. Alper"/>
</author>
<useContext>
<code>
<system value="https://fevir.net/resources/CodeSystem/179423"/>
<code value="evidence-communication"/>
<display value="Evidence Communication"/>
</code>
<valueCodeableConcept>
<coding>
<system value="https://fevir.net/resources/CodeSystem/179423"/>
<code value="ComparativeEvidence"/>
<display value="ComparativeEvidence"/>
</coding>
</valueCodeableConcept>
</useContext>
<useContext>
<code>
<system value="https://fevir.net/resources/CodeSystem/179423"/>
<code value="evidence-communication"/>
<display value="Evidence Communication"/>
</code>
<valueCodeableConcept>
<coding>
<system value="https://fevir.net/resources/CodeSystem/179423"/>
<code value="NetEffectContribution"/>
<display value="NetEffectContribution"/>
</coding>
</valueCodeableConcept>
</useContext>
<copyright value="https://creativecommons.org/licenses/by-nc-sa/4.0/"/>
<description value="-0.24 (-0.32 to -0.16)"/>
<variableDefinition>
<description
value="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 value="population"/>
<observed>🔗
<reference value="Group/178427"/>
<type value="Group"/>
<display
value="StudyGroup: Severely Obese Adults 2018 Norwegian Cohort"/>
</observed>
</variableDefinition>
<variableDefinition>
<description
value="comparison groups of bariatric surgery vs. no bariatric surgery"/>
<variableRole value="exposure"/>
<comparatorCategory value="no bariatric surgery"/>
<observed>🔗
<reference value="EvidenceVariable/172427"/>
<type value="EvidenceVariable"/>
<display
value="GroupAssignment: Bariatric Surgery vs. no bariatric surgery"/>
</observed>
</variableDefinition>
<variableDefinition>
<description value="Treatment with opioids"/>
<variableRole value="outcome"/>
<observed>🔗
<reference value="EvidenceVariable/104119"/>
<type value="EvidenceVariable"/>
<display value="OutcomeVariable: Treatment with opioids"/>
</observed>
</variableDefinition>
<variableDefinition>
<extension
url="http://hl7.org/fhir/uv/ebm/StructureDefinition/relative-outcome-importance">
<valueReference>🔗
<reference value="ArtifactAssessment/104195"/>
<type value="ArtifactAssessment"/>
<display
value="Outcome Importance Rating 5% of Treatment with opioids"/>
</valueReference>
</extension>
<description value="Relative Importance Multiplier"/>
<variableRole value="covariate"/>
<roleSubtype>
<coding>
<system value="https://fevir.net/resources/CodeSystem/179423"/>
<code value="importance-multiplier"/>
<display value="Relative importance multiplier"/>
</coding>
</roleSubtype>
<observed>
<display value="Relative Importance Multiplier"/>
</observed>
</variableDefinition>
<statistic>
<description value="risk difference -0.24 (95% CI -0.32 to -0.16)"/>
<statisticType>
<coding>
<system value="https://fevir.net/sevco"/>
<code value="STATO:0000424"/>
<display value="risk difference"/>
</coding>
</statisticType>
<quantity>
<value value="-0.24"/>
</quantity>
<attributeEstimate>
<description value="95% CI -0.32 to -0.16"/>
<type>
<coding>
<system value="https://fevir.net/sevco"/>
<code value="STATO:0000196"/>
<display value="confidence interval"/>
</coding>
</type>
<level value="0.95"/>
<range>
<low>
<value value="-0.32"/>
</low>
<high>
<value value="-0.16"/>
</high>
</range>
</attributeEstimate>
<modelCharacteristic>
<code>
<text value="Net effect contribution analysis"/>
</code>
</modelCharacteristic>
</statistic>
</Evidence>