Composite Dietary Antioxidant Index and Metabolic Health in Overweight/Obesity in U.S. Adults

University-Town Hospital of Chongqing Medical University

Status: Completed

Conditions: Overweight/Obesity; Metabolic Health

Treatments: Other: None (Observational)

Study type: Observational

Funder types: Other

Identifiers

NCT07291726

NHANES_CrossSec_2025_01

Details and patient eligibility

About

This cross-sectional study draws on data from the National Health and Nutrition Examination Survey (NHANES) database. The primary objective is to investigate the associations between the Composite Dietary Antioxidant Index (CDAI) and overweight/obesity, as well as the related metabolic abnormalities, among the U.S. general population. By analyzing this large-scale, nationally representative dataset, the investigators seek to generate evidence that can inform public health policies and clinical practice-ultimately contributing to a deeper understanding of population-level health challenges and the development of targeted strategies to address them.

Enrollment: 38,646 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Participants with complete data on composite dietary antioxidant index from the NHANES database
• Participants with complete body mass index (BMI) data from the NHANES database
• Individuals aged 18 years and older

Exclusion criteria

• Participants with missing key data (composite dietary antioxidant index or BMI)
• Individuals who are pregnant

Trial design

38,646 participants in 4 patient groups

CDAI Q1 (Lowest Quartile)

Treatment:

Other: None (Observational)

CDAI Q2 (Second Quartile)

Treatment:

Other: None (Observational)

CDAI Q3 (Third Quartile)

Treatment:

Other: None (Observational)

CDAI Q4 (Highest Quartile)

Treatment:

Other: None (Observational)