Diet HabitCHS DIETNCT03379298
Children's Health Study Diet and Air Pollution
An observational study of Diet Habit and Pollution; Exposure, run by University of Southern California.
Trial summary
This study is built upon the existing data in the Children's Health Study to examine the longitudinal association between childhood exposure to air pollutants and changes in diet among adolescents. Read more about this study
- Who is it for?
- Ages 13 to 18 yearsHealthy volunteers can take part
- Conditions the study is for
- Diet Habit, Pollution; Exposure, Child Obesity
- How many people
- 3,142 participants
- Where
- No sites listed yet
- Study dates
- 1 Jan 1994to 30 Dec 2001
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 13 to 18 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: Children from 12 Southern California communities were enrolled into the study in 4th and 7th grades (1993-1994) and were followed annually until high school graduation (1998-2001).
Who may be able to join
- children of 4th and 7th grades were enrolled from 12 Southern California communities
Who cannot join
- extreme mean caloric intake (>5000 or < 500 kcal/day) or no demographic information
About this study
Official title: Regional and Traffic-related Air Pollutants Are Associated With Consumption of a High Fat Diet Among Adolescents
This study is built upon the existing data in the Children's Health Study to examine the longitudinal association between childhood exposure to air pollutants and changes in diet among adolescents.
- Conditions
- Diet Habit, Pollution; Exposure, Child Obesity
- Medical subject headings
- Feeding Behavior, Pediatric Obesity
What is being measured
The primary outcome is the main question the study is designed to answer.
Dietary behavior
self-reported food frequency questionnaire data
Measured: one year before visit date
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Dec 2017
- Study start1 Jan 1994
- Primary completion30 Dec 2001
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Diet HabitStudies of the same condition, open and under way.
- More trials run by University of Southern CaliforniaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 3,142 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Southern California
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Frank Gilliland, University of Southern California
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03379298
- Sponsor's protocol ID
- CHS01
- Acronym
- CHS DIET
- Status last verified
- Dec 2017
- First submitted
- 15 Dec 2017
- Last updated
- 20 Dec 2017
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Chen Z, Herting MM, Chatzi L, Belcher BR, Alderete TL, McConnell R, Gilliland FD. Regional and traffic-related air pollutants are associated with higher consumption of fast food and trans fat among adolescents. Am J Clin Nutr. 2019 Jan 1;109(1):99-108. doi: 10.1093/ajcn/nqy232.
PubMed 30596809
Study at a glance
From the registry record, last updated by the sponsor on 20 Dec 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Regional and Traffic-related Air Pollutants Are Associated With Consumption of a High Fat Diet Among Adolescents
- ClinicalTrials.gov ID
- NCT03379298
- Acronym / sponsor ID
- CHS DIET / CHS01
- Conditions
- Diet Habit, Pollution; Exposure, Child Obesity
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 3,142 participants (actual)
- Lead sponsor
- University of Southern CaliforniaUniversity, hospital or other
- Study start
- 1 Jan 1994 (actual)
- Primary completion
- 30 Dec 2001 (actual)
- First posted
- 20 Dec 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is built upon the existing data in the Children's Health Study to examine the longitudinal association between childhood exposure to air pollutants and changes in diet among adolescents.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 13 to 18 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Children from 12 Southern California communities were enrolled into the study in 4th and 7th grades (1993-1994) and were followed annually until high school graduation (1998-2001).
Key inclusion criteria (1 listed)
- children of 4th and 7th grades were enrolled from 12 Southern California communities
Key exclusion criteria (1 listed)
- extreme mean caloric intake (>5000 or < 500 kcal/day) or no demographic information
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Dietary behavior
Time frame: one year before visit date
self-reported food frequency questionnaire data
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Dec 2017.
- Derived from this study: PubMed 30596809Chen Z, Herting MM, Chatzi L, Belcher BR, Alderete TL, McConnell R, Gilliland FD. Regional and traffic-related air pollutants are associated with higher consumption of fast food and trans fat among adolescents. Am J Clin Nutr. 2019 Jan 1;109(1):99-108. doi: 10.1093/ajcn/nqy232.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Diet Habit and Pollution; Exposure, run by University of Southern California.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 20 Dec 2017. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Dietary behavior (time frame: one year before visit date). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03379298, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Dec 2017.