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Psychological Mechanisms Linking Food Insecurity and Obesity

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ClinicalTrials.gov Identifier: NCT03441594
Recruitment Status : Active, not recruiting
First Posted : February 21, 2018
Last Update Posted : June 15, 2018
Sponsor:
Collaborator:
National Institute of General Medical Sciences (NIGMS)
Information provided by (Responsible Party):
Candice A. Myers, Ph.D., Pennington Biomedical Research Center

Brief Summary:
The current pilot study will examine emergent hypotheses by investigating the role of psychological mechanisms in the relationship between food insecurity and obesity. This objective will be achieved via a cross-sectional, observational pilot study collecting quantitative and qualitative data.

Condition or disease
Obesity Psychological

Detailed Description:
This pilot study will investigate an emergent risk factor for obesity: food insecurity, which is defined as the limited or uncertain availability of nutritionally adequate and safe foods. While paradoxically linked, numerous studies have shown a significant association between food insecurity and obesity. Moreover, recent narrative works have developed new, untested hypotheses linking food insecurity and obesity positing the causal role of psychological mechanisms. Given this, this mixed method pilot study will collect new psychological data in a sample of food secure and food insecure adults with and without obesity to examine the connections between food insecurity, body weight, and psychological constructs. The overarching objective of the study is to gather pilot data to identify potentially new intervention targets that will be used in future studies to more rigorously investigate the relationship between food insecurity and obesity.

Study Type : Observational
Actual Enrollment : 56 participants
Observational Model: Other
Time Perspective: Cross-Sectional
Official Title: Psychological Mechanisms Linking Food Insecurity and Obesity (Food Mind Pilot Study)
Actual Study Start Date : February 5, 2018
Estimated Primary Completion Date : June 2018
Estimated Study Completion Date : December 2018



Primary Outcome Measures :
  1. Delay Discounting [ Time Frame: Through study completion, an average of 1 hour and 30 minutes at Study Visit 1 ]
    Assessed via the 27-Item Monetary Choice Questionnaire, which measures bias toward smaller, immediate rewards versus larger, delayed rewards. This questionnaire presents participants with a set of 27 choices between smaller, immediate monetary rewards and larger, delayed monetary rewards. An estimate of a participant's discounting rate (k) is calculated from the pattern of choices. Participants who discount the value of the delayed rewards more steeply, have a higher k value, are considered to be more impulsive.


Secondary Outcome Measures :
  1. Grit [ Time Frame: Through study completion, an average of 1 hour and 30 minutes at Study Visit 1 ]
    Assessed using the 8-item Short Grit Scale, which measures trait-level perseverance and passion for long-term goals. Scores range from 1 (not at all gritty) to 5 (extremely gritty).



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Ages Eligible for Study:   18 Years to 49 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
The target study sample will be 56 food secure and food insecure women and men aged 18 to 49 years with a BMI of 20.0 kg/m2 or greater.
Criteria

Inclusion Criteria:

  • Age 18-49 years
  • BMI ≥ 20.0 kg/m2
  • Able to read and write using the English language
  • Willing to provide written informed consent

Exclusion Criteria:

  • Pregnancy

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03441594


Locations
United States, Louisiana
Pennington Biomedical Research Center
Baton Rouge, Louisiana, United States, 70808-4124
Sponsors and Collaborators
Pennington Biomedical Research Center
National Institute of General Medical Sciences (NIGMS)
Investigators
Principal Investigator: Candice A Myers, Ph.D. Pennington Biomedicial Research Center

Responsible Party: Candice A. Myers, Ph.D., Assistant Professor, Pennington Biomedical Research Center
ClinicalTrials.gov Identifier: NCT03441594     History of Changes
Other Study ID Numbers: 2017-060-PBRC
U54GM104940 ( U.S. NIH Grant/Contract )
First Posted: February 21, 2018    Key Record Dates
Last Update Posted: June 15, 2018
Last Verified: June 2018

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Candice A. Myers, Ph.D., Pennington Biomedical Research Center:
Food Insecurity

Additional relevant MeSH terms:
Obesity
Overnutrition
Nutrition Disorders
Overweight
Body Weight
Signs and Symptoms