Dissolve-E: AWMF Guideline Registry
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| Active as of 2026-01-29 |
{
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"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem cs-ocebm-2009-levels-of-evidence</b></p><a name=\"cs-ocebm-2009-levels-of-evidence\"> </a><a name=\"hccs-ocebm-2009-levels-of-evidence\"> </a><p>This case-insensitive code system <code>http://fhir.awmf.org/awmf.ig/CodeSystem/cs-ocebm-2009-levels-of-evidence</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Definition</b></td><td><b>Deutsch (German, de)</b></td></tr><tr><td style=\"white-space:nowrap\">1a<a name=\"cs-ocebm-2009-levels-of-evidence-1a\"> </a></td><td>Systematic reviews of high-quality RCTs</td><td>1a</td></tr><tr><td style=\"white-space:nowrap\">1b<a name=\"cs-ocebm-2009-levels-of-evidence-1b\"> </a></td><td>Individual RCT (with narrow confidence interval)</td><td>1b</td></tr><tr><td style=\"white-space:nowrap\">1c<a name=\"cs-ocebm-2009-levels-of-evidence-1c\"> </a></td><td>All or none RCTs</td><td>1c</td></tr><tr><td style=\"white-space:nowrap\">2a<a name=\"cs-ocebm-2009-levels-of-evidence-2a\"> </a></td><td>Systematic reviews of cohort studies</td><td>2a</td></tr><tr><td style=\"white-space:nowrap\">2b<a name=\"cs-ocebm-2009-levels-of-evidence-2b\"> </a></td><td>Individual cohort study or low-quality RCT</td><td>2b</td></tr><tr><td style=\"white-space:nowrap\">2c<a name=\"cs-ocebm-2009-levels-of-evidence-2c\"> </a></td><td>Outcomes research; ecological studies</td><td>2c</td></tr><tr><td style=\"white-space:nowrap\">3a<a name=\"cs-ocebm-2009-levels-of-evidence-3a\"> </a></td><td>Systematic reviews of case-control studies</td><td>3a</td></tr><tr><td style=\"white-space:nowrap\">3b<a name=\"cs-ocebm-2009-levels-of-evidence-3b\"> </a></td><td>Individual case-control study</td><td>3b</td></tr><tr><td style=\"white-space:nowrap\">4<a name=\"cs-ocebm-2009-levels-of-evidence-4\"> </a></td><td>Case series</td><td>4</td></tr><tr><td style=\"white-space:nowrap\">5<a name=\"cs-ocebm-2009-levels-of-evidence-5\"> </a></td><td>Expert opinion</td><td>5</td></tr></table></div>"
},
"url" : "http://fhir.awmf.org/awmf.ig/CodeSystem/cs-ocebm-2009-levels-of-evidence",
"version" : "0.2.0",
"name" : "OCEBM2009LevelsOfEvidence",
"title" : "OCEBM 2009 Levels of Evidence",
"status" : "active",
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"date" : "2026-01-29T18:27:10+00:00",
"publisher" : "AWMF e.V.",
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],
"description" : "CodeSystem representing the Oxford Centre for Evidence-Based Medicine 2009 CEBM Levels of Evidence",
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"content" : "complete",
"count" : 10,
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"code" : "1a",
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"definition" : "Systematic reviews of high-quality RCTs",
"_definition" : {
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"valueString" : "Einzelne randomisierte kontrollierte Studien (mit engem Konfidenzintervall)"
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},
{
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"definition" : "All or none RCTs",
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