The National Endoscopic Database (NED)

CORI practice sites capture endoscopic procedure data that are automatically transmitted to CORI. The practice data are stripped of most patient and physician identifiers before transmitting, then tested for completeness and accuracy, merged with data from all participating practices, and stored in the National Endoscopic Database (NED).

CORI implements rigorous data standards to ensure:

  • HIPAA compliance – CORI adheres to the most stringent HIPAA regulations. Most patient identifiers are removed from the data files prior to transmission to CORI qualifying the data files to be a Limited Data Set.
  • A secure computing environment – Data stored in the NED are protected in a secured facility using state-of-the-art computer security methods.
  • Controlled data access – Research requests for aggregate data from the NED require approval by a research review committee. Analysis of these datasets is usually performed by the CORI research analysts.

Uses of the NED

While many research projects begin with the research team at CORI, aggregated data from the NED may also be provided to both community-based and research-oriented providers, pharmaceutical companies, hospital or healthcare systems and other organizations. Requests must be approved by CORI's Research Operations Committee. This data can serve one of several purposes:

  • Clinical Research – Supports a wide range of endoscopic research projects and clinical studies, with the goal of publication in peer-reviewed journals and presentations at academic conferences.
  • Hypothesis Testing – CORI acts as an excellent hypothesis-generating tool by providing insight and substantiation for development of a research hypothesis.
  • Pilot Research Data – Fulfills a requirement for preliminary data in grant applications and research proposals.
  • Data for Industry – May be used for study planning and product testing.
  • Site specific queries – CORI sites may request data for their site alone, or in combination with aggregated NED data for comparison purposes.

NED Benefits for CORI Users

As a benefit to users, CORI participants may conduct simple projects for the purposes mentioned above free of charge. Users may request data from their practice alone or in combination with aggregated NED data from all CORI practices to be used for comparison purposes. In addition, built into the CORI v4 Endoscopic Reporting Software is the ability for a site to directly query their own practice data, including retrieval of identifying patient-level data. For more complex requests, CORI engineers can create a custom query for you to run on your own database. This method is also useful if a site intends to use the query repeatedly.

This data can be used for:

  • Practice Benchmarking – Allows practices and individual endoscopists to compare their results with national trends.
  • Quality Measure Reporting – Supports quality improvement initiatives from such organizations as JCAHO and NCQA.
  • Identification of study subjects – Potential subjects can be identified based on inclusion and exclusion criteria.

Simple queries do not require approval by CORI's Research Operations Committee and are provided free of charge. More complex requests will be charged a service fee.

Examples of simple queries include:

  • The frequency of findings by procedure type
  • The frequency of indications by procedure type
  • Indications or findings by age, race or gender
  • Patient demographics
  • Sedation medications used in each procedure type
  • Proportion of colonoscopies where polyps were found
  • Most frequent indication for a procedure type
  • Therapies used for a specific finding
  • Procedure completion rate
  • Frequencies of procedures by month/quarter

NED Fees

Due to CORI's limited resources, non-CORI users and users proposing complex analyses will be assessed a fee for services provided. Fees are determined by the amount of effort required by CORI staff to complete the proposed work. Effort is determined by the complexity of the data pull, the amount of data manipulation required and the complexity of the statistical analysis and results presentation. Other considerations include assistance with abstract or manuscript preparation and additional effort from the CORI technical staff. Research staff will work with potential investigators to develop a Scope of Work for a proposed project that requires funding.

Research Staff

Research staff: CORI Research Services consists of a team of data analysts, statisticians, epidemiologists, database architects and software engineers with extensive experience in conducting research within the CORI framework.

Research Data Analysts: CORI staffs two full-time data analysts to assist investigators with all aspects of the research process. Both possessing MPH degrees specializing in epidemiology and biostatistics, the team has over 15 years of experience performing research within CORI. They work directly with you to develop and accomplish your research needs and serve as a liaison between researchers and the CORI Operations Committee.

Specific services provided by the Data Analysts include:

  • Development of research proposals – CORI Analysts have extensive knowledge about how data in the NED is collected, how it is stored and what data is available and robust for use in research studies. Analysts assist investigators to refine a protocol as needed to correspond with the data available for research.
  • Assistance with grant applications – Analysts can provide the necessary information such as preliminary data, sample size estimates, descriptions and methodologies regarding the NED and standard operating procedures for investigators wishing to use CORI as part of a grant submission.
  • Querying the NED – CORI Analysts have in-depth knowledge of the structure of the data warehouse and thus have the required expertise to extract data, perform quality assurance checks and perform any data manipulation required.
  • Statistical Analyses – Staff Analysts perform the statistical analysis for studies utilizing the CORI NED.
  • Manuscript preparation – CORI must review any manuscript including data from the NED for accuracy. In addition, analysts can provide investigators with any necessary language, methods, tables and charts needed for a manuscript submission.

If you have any questions, please contact CORI Research Services by clicking here.