Prevalence and Characteristics of Nonpolypoid Colorectal Neoplasms - A Chinese Cohort Study

February 14, 2012 updated by: Xiaobo Li, Shanghai Jiao Tong University School of Medicine
The nonpolypoid colorectal neoplasms (NP-CRNs) are relatively common in patients with gastrointestinal alarm systoms. The depressed lesions have a greater risk of having cancer than flat and polypoid lesions.

Study Overview

Status

Completed

Study Type

Observational

Enrollment (Actual)

1342

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

consecutive adult patients undergo colonoscopy by one endoscopist from Jan 2009 to Dec 2010

Description

Inclusion Criteria:

  • consecutive adult patients undergo colonoscopy by one endoscopist

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2009

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

February 11, 2012

First Submitted That Met QC Criteria

February 14, 2012

First Posted (Estimate)

February 15, 2012

Study Record Updates

Last Update Posted (Estimate)

February 15, 2012

Last Update Submitted That Met QC Criteria

February 14, 2012

Last Verified

February 1, 2012

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Nonpolypoid Colorectal Neoplasms(NP-CRN)

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