# text.div
Generated Narrative: CodeSystem study-type

Last updated: 2020-04-09 21:10:28+0000; Language: en

This case-sensitive code system http://terminology.hl7.org/CodeSystem/study-type defines the following codes:

Code | Display | Definition
RCT | randomized trial | randomized controlled trial.
CCT | controlled trial (non-randomized) | controlled (but not randomized) trial.
cohort | comparative cohort study | observational study comparing cohorts.
case-control | case-control study | case-control study.
series | uncontrolled case series | uncontrolled case series.
case-report | case report | a single case report.
RCTandCohort | mixed RCT and cohort | a combination of 1 or more RCTs and cohorts.
cross-section | cross sectional study | uncontrolled cohort.

# description
The type of study a statistic was derived from.

# copyright
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

# concept[].definition
a combination of 1 or more RCTs and cohorts.