Joint Effects of Physical Activity and Diet Quality on Depression and Mortality in Diabetes

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

3621 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-03-16

Study Completion Date

2025-07-24

Brief Summary

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This observational study aims to investigate whether physical activity (PA) and diet quality (DQ) can reduce depression and mortality risk in individuals with diabetes. Participants will be adults diagnosed with diabetes during the 2007-2018 cycle of the National Health and Nutrition Examination Survey (NHANES). The main questions to be answered include:

Does higher levels of physical activity significantly reduce the risk of depression in individuals with diabetes? Is higher diet quality associated with lower mortality in individuals with diabetes? Investigators will compare individuals with varying levels of PA and DQ to examine whether these two lifestyle factors, both individually and in combination, have protective effects on mental health and survival.

Participants will:

Complete questionnaires regarding their physical activity and dietary intake; Be assessed for depressive symptoms (PHQ-9); Be enrolled in long-term mortality follow-up (from the National Death Index); Analyses will be categorized according to their PA (measured in MET-min/week) and HEI-2015 dietary score.

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Detailed Description

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Conditions

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Diabetes Complications Depression Anxiety Disorder Diabetes

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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Inclusion Criteria

* Adults aged 20 years and older.
* Diagnosed with diabetes mellitus, defined by self-report, fasting plasma glucose ≥126 mg/dL, or HbA1c ≥6.5%.
* Available data on physical activity, diet quality (HEI-2015), and depression status (PHQ-9).
* Complete demographic and mortality follow-up data.

Exclusion Criteria

* Missing key exposure or outcome data (e.g., physical activity, HEI-2015, PHQ-9, mortality).
* Pregnant individuals at the time of the survey.
* Participants with unreliable or extreme dietary intake data (e.g., energy intake \<500 or \>5000 kcal/day).

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No