Psychological Mechanisms Linking Food Insecurity and Obesity
2020年1月28日 更新者：Candice A. Myers, Ph.D.、Pennington Biomedical Research Center
Psychological Mechanisms Linking Food Insecurity and Obesity (Food Mind Pilot Study)
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.
研究概览
详细说明
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.
研究类型
观察性的
注册 (实际的)
56
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
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Louisiana
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Baton Rouge、Louisiana、美国、70808-4124
- Pennington Biomedical Research Center
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 至 49年 (成人)
接受健康志愿者
是的
有资格学习的性别
全部
取样方法
概率样本
研究人群
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.
描述
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
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Delay Discounting
大体时间：Through study completion, an average of 1 hour and 30 minutes at Study Visit 1
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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.
Participants who discount the value of the delayed rewards more steeply are considered to be more impulsive.
An estimate of a participant's discounting rate (k) is calculated from the pattern of choices.
Values of k range from 0.00016 (ln transformation -8.74) to 0.25 (ln transformation -1.39), with higher values indicating a greater preference for smaller, immediate rewards over larger, delayed rewards.
K tends to be skewed, so a natural log (ln) transformation is utilized to approximate a normal distribution for statistical analyses.
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Through study completion, an average of 1 hour and 30 minutes at Study Visit 1
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Grit
大体时间：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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Through study completion, an average of 1 hour and 30 minutes at Study Visit 1
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Candice A Myers, Ph.D.、Pennington Biomedicial Research Center
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2018年2月5日
初级完成 (实际的)
2018年5月28日
研究完成 (实际的)
2019年12月31日
研究注册日期
首次提交
2018年1月26日
首先提交符合 QC 标准的
2018年2月14日
首次发布 (实际的)
2018年2月22日
研究记录更新
最后更新发布 (实际的)
2020年2月5日
上次提交的符合 QC 标准的更新
2020年1月28日
最后验证
2020年1月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.