Validation of a Food Frequency Questionnaire: VioScreen

September 27, 2024 updated by: University of Colorado, Denver
The purpose of this study is to learn more about how well a questionnaire about food intake works. The study team will compare questionnaire responses to several other measurements of food intake. There is a special emphasis on fruit and vegetable intake.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
27

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Colorado
      • Aurora, Colorado, United States, 80045
        • Children's Hospital Colorado
      • Denver, Colorado, United States, 80204
        • Denver Health

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

pregnant women and women of child-bearing age

Description

Inclusion Criteria:

  • Age 18-40 as we are aiming to recruit women of child-bearing age
  • Pregnant women up to 26 weeks' gestation
  • Women assigned female sex at birth who are not pregnant

Exclusion Criteria:

  • Women below the age of 18 or over the age of 40 years
  • Pregnant women more than 26 weeks' gestation at the time of enrollment
  • Women who are experiencing limited or reduced food intake related to nausea will not be approached for recruitment and are considered ineligible
  • Women who are unwilling to participate in the study due to time commitment or other reasons
  • Women whose capacity for study compliance is diminished due to conditions such as active untreated substance use disorder, untreated/uncontrolled schizophrenia, bipolar disorder, active psychosis will not be approached for recruitment and are considered ineligible

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

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Concurrent validity of VioScreen against 24-hour recalls
Time Frame: 6 weeks
Concurrent validity measures how a new test compares against a validated test, called the criterion or "gold standard."
6 weeks
Test-retest reliability of VioScreen
Time Frame: one month
Test-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
one month

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Concurrent validity of VioScreen against Veggie Meter
Time Frame: 6 weeks
Concurrent validity measures how a new test compares against a validated test, called the criterion or "gold standard."
6 weeks
Concurrent validity of VioScreen against Fruit and Vegetable Screener
Time Frame: 6 weeks
Concurrent validity measures how a new test compares against a validated test, called the criterion or "gold standard."
6 weeks
Test-retest reliability of Veggie Meter
Time Frame: one month
Test-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
one month
Test-retest reliability of Fruit and Vegetable Screener
Time Frame: one month
Test-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
one month
Concurrent validity of Veggie Meter against 24-hour recalls
Time Frame: 6 weeks
Concurrent validity measures how a new test compares against a validated test, called the criterion or "gold standard."
6 weeks
Concurrent validity of Fruit and Vegetable Screener against 24-hour recalls
Time Frame: 6 weeks
Concurrent validity measures how a new test compares against a validated test, called the criterion or "gold standard."
6 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Colorado, Denver

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Carina Venter, PhD, University of Colorado, Denver

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 16, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 16, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 16, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 22, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 6, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 10, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 1, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 27, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2023

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 22-0904

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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.

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