Skip to main content
OpenTrials
Completed

NCT Number: NCT03864640

Reliability and Validity of Mediterranean Colorectal Cancer Registry

The study will examine the validity and reliability of the Mediterranean Colorectal Cancer Registry. Aspects of the analysis will cover parallel forms reliability, test-retest reliability, split half internal consistency and face validity of the Mediterranean Colorectal Cancer Registry.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Registries

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Muhittin Yaprak

Antalya, 07059, Turkey (Türkiye)

About this study

Although central cancer registry programs have many benefits (the determination of national cancer incidences, strategic planning of health care systems etc.) data entry in such programs is often collected in restricted variables and physicians participating in the registration process may not be able to interact with each other during the management of their patients. For these reasons, a complete record in national general cancer registries can only be established retrospectively and the direct contribution to patient-specific diagnosis / treatment is limited. On the other hand, local registries have many advantages like easy integration of the data into the hospital electronic systems and multidisciplinary proactive enrollment.

Thus, characteristics of ongoing colorectal cancer registries (Swedish, South Australian, Oregon, Lublin, Ontario etc.) reported previously in the English medical literature are reviewed and an electronic form is tabulated for the Mediterranean Colorectal Cancer Registry. This study will examine the validity and reliability of this registry. Aspects of the analysis will cover construct validity, content validity, parallel forms reliability, test-retest reliability, split half internal consistency and face validity.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adult patients with colorectal cancer.

Exclusion criteria

  • Patients reluctant to participate in the study.

Treatment and study plan

Primary outcomes

  1. Construct validity of Mediterranean Colorectal Cancer Registry: answering multiple-choice items

    Time frame: 2 week

    Construct validity will be based on the combination of qualitative and statistical methods in order to develop representative and structured set of multiple-choice items for colorectal cancer registry.

  2. Content validity of Mediterranean Colorectal Cancer Registry: answering multiple-choice items

    Time frame: 2 week

    Content validity will be based on the combination of qualitative and statistical methods in order to develop shortest-possible but well-matched set of multiple-choice items reflecting the subjects being assessed in the colorectal cancer registry. .

Secondary outcomes

  1. Parallel forms reliability of Mediterranean Colorectal Cancer Registry: answering multiple-choice items

    Time frame: 2 week

    Parallel forms reliability will be based on assessments analyzing the extent to which the items answered by different responders correlate with each other within their domain. It will be evaluated by correlation scores or positive predictive values according to the subject being assessed.

  2. Test-retest reliability of Mediterranean Colorectal Cancer Registry: answering multiple-choice items

    Time frame: 2 week

    Test-retest reliability will be based on the reproducibility of the answers to multiple-choice items during a specific time period of stable condition. It will be evaluated by intraclass correlation coefficient or positive predictive values according to the subject being assessed.

  3. Split half internal consistency of Mediterranean Colorectal Cancer Registry: answering multiple-choice items

    Time frame: 2 week

    Split half internal consistency will be based on the comparison of two sets of items inquirying the same subject. It will be evaluated by correlation scores or positive predictive values according to the subject being assessed.

  4. Face validity of Mediterranean Colorectal Cancer Registry: binary scoring of items

    Time frame: 2 week

    Face validity will be based on the scores of respondents indicating their overall positive or negative impression after evaluating each item for every file they registered.

  5. Face validity of Mediterranean Colorectal Cancer Registry: the major reason behind the negative response

    Time frame: 2 week

    For negative responses, respondents will provide further feedback whether the item was ambiguous, confusing, excessively short, excessively long or there was another reason for their negative impression.

Sponsors and collaborators

Lead sponsor

Volkan Doğru

Other

Registry information

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Mar 6, 2019
Registry last updated
Jan 18, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.