Measurement and Determinants of Diet Quality in Older Adults
ConditionNone Volunteer
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age60+
SponsorUniversity of California, Los Angeles
About this trial
The goal of this observational study is to learn about dietary quality and barriers to healthy eating among older adults who participate in the Los Angeles County Food Rx Produce Distribution Program. The study will also evaluate whether a newer dietary assessment tool, the Global Diet Quality Questionnaire (GDQQ), performs similarly to an established dietary assessment tool, the Mediterranean Diet Scale (PREDIMED MDS), in measuring diet quality among adults aged 60 years and older.
The main questions it aims to answer are:
* Is the GDQQ associated with diet quality scores measured by the PREDIMED Mediterranean Diet Scale? * Does the GDQQ predict self-reported body mass index (BMI) as well as or better than the PREDIMED Mediterranean Diet Scale? * What barriers and facilitators influence healthy eating and participation in produce distribution programs among older adults?
Participants will:
* Complete questionnaires about their dietary habits, demographic characteristics, and food access experiences. * Complete two dietary quality assessment tools: the PREDIMED Mediterranean Diet Scale and the Global Diet Quality Questionnaire. * If randomly selected, participate in a one-time semi-structured interview to discuss healthy eating, food access, experiences with produce distribution events, and challenges to improving dietary quality.
Eligibility criteria
Qualifiers
Be 60 years of age or older
Be a regular attendee (i.e., more than one visit) at L.A. County Food Rx produce distribution events
Be able to communicate in English or Spanish, as these are the languages in which study materials and interviews are available
Be able to provide informed consent and complete the brief study activities These criteria reflect the study's focus on older adults at increased risk for chronic disease due to food insecurity and poor diet quality. English and Spanish were selected based on the primary languages spoken at Food Rx distribution sites and the capacity of the study team to support accurate, culturally sensitive data collection.
Disqualifiers
Are younger than 60 years old
Are first-time attendees at the produce distribution site (i.e., not familiar with program operations)
Are unable to understand or communicate in English or Spanish
Are unable to provide informed consent or complete the questionnaires or interview due to cognitive or physical limitations Language and participation history were included as exclusion criteria to ensure participant familiarity with the setting and the ability to engage meaningfully in data collection. ose who cannot provide informed consent will be excluded in accordance with ethical research protections for vulnerable adults.
Trial design
Treatments tested in this trial
- Not listed
Trial groups
No trial groups listed
Sponsors and collaborators
University of California, Los Angeles
Lead sponsor
National Institute on Aging (NIA)
Collaborator
National Center for Advancing Translational Sciences (NCATS)
Collaborator
Source ClinicalTrials.gov