<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="study-type"/><meta><lastUpdated value="2020-04-09T21:10:28.568+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem study-type</b></p><a name="study-type"> </a><a name="hcstudy-type"> </a><a name="study-type-en-US"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Last updated: 2020-04-09 21:10:28+0000</p></div><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/study-type</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">RCT<a name="study-type-RCT"> </a></td><td>randomized trial</td><td>randomized controlled trial.</td></tr><tr><td style="white-space:nowrap">CCT<a name="study-type-CCT"> </a></td><td>controlled trial (non-randomized)</td><td>controlled (but not randomized) trial.</td></tr><tr><td style="white-space:nowrap">cohort<a name="study-type-cohort"> </a></td><td>comparative cohort study</td><td>observational study comparing cohorts.</td></tr><tr><td style="white-space:nowrap">case-control<a name="study-type-case-control"> </a></td><td>case-control study</td><td>case-control study.</td></tr><tr><td style="white-space:nowrap">series<a name="study-type-series"> </a></td><td>uncontrolled case series</td><td>uncontrolled case series.</td></tr><tr><td style="white-space:nowrap">case-report<a name="study-type-case-report"> </a></td><td>case report</td><td>a single case report.</td></tr><tr><td style="white-space:nowrap">RCTandCohort<a name="study-type-RCTandCohort"> </a></td><td>mixed RCT and cohort</td><td>a combination of 1 or more RCTs and cohorts.</td></tr><tr><td style="white-space:nowrap">cross-section<a name="study-type-cross-section"> </a></td><td>cross sectional study</td><td>uncontrolled cohort.</td></tr></table></div></text><url value="http://terminology.hl7.org/CodeSystem/study-type"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.1.1350"/></identifier><version value="1.0.0"/><name value="StatisticStudyType"/><title value="StatisticStudyType"/><status value="draft"/><experimental value="false"/><date value="2020-04-09T21:10:28+00:00"/><publisher value="Health Level Seven International"/><contact><telecom><system value="url"/><value value="http://hl7.org"/></telecom><telecom><system value="email"/><value value="hq@HL7.org"/></telecom></contact><description value="The type of study a statistic was derived from."/><copyright value="This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license.html"/><caseSensitive value="true"/><valueSet value="http://terminology.hl7.org/ValueSet/study-type"/><content value="complete"/><concept><code value="RCT"/><display value="randomized trial"/><definition value="randomized controlled trial."/></concept><concept><code value="CCT"/><display value="controlled trial (non-randomized)"/><definition value="controlled (but not randomized) trial."/></concept><concept><code value="cohort"/><display value="comparative cohort study"/><definition value="observational study comparing cohorts."/></concept><concept><code value="case-control"/><display value="case-control study"/><definition value="case-control study."/></concept><concept><code value="series"/><display value="uncontrolled case series"/><definition value="uncontrolled case series."/></concept><concept><code value="case-report"/><display value="case report"/><definition value="a single case report."/></concept><concept><code value="RCTandCohort"/><display value="mixed RCT and cohort"/><definition value="a combination of 1 or more RCTs and cohorts."/></concept><concept><code value="cross-section"/><display value="cross sectional study"/><definition value="uncontrolled cohort."/></concept></CodeSystem>