Associations between ultra-processed foods intake and preserved ratio impaired spirometry in U.S. adults.

ABSTRACT:

Background

Preserved Ratio Impaired Spirometry (PRISm) is increasingly recognized as a precursor to Chronic Obstructive Pulmonary Disease (COPD). The impact of Ultra-Processed Foods (UPFs) intake on PRISm and lung function remains underexplored, and we aimed to explore their associations.

Methods

This study included 8,336 U.S. adults. Weighted logistic and linear regression models were employed for main analysis. Dose-response relationship was examined through restricted cubic spline (RCS) analysis, and subgroup analyses explored interactions with selected covariates.

Results

Participants in the PRISm group were older and exhibited various adverse health characteristics. The percentage of total daily energy intake from UPFs (%Kcal) intake was associated with a non-sig

SUBMITTER: Kong W 

PROVIDER: S-EPMC11825343 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature