The role of diet and periodontitis in preserved ratio impaired spirometry: a mediation analysis (opens in new tab)

BackgroundPreserved ratio impaired spirometry (PRISm) is an early form of lung dysfunction linked to systemic inflammation and oxidative stress. While diet and periodontitis independently affect pulmonary health, their interrelationship and potential mediating pathways remain unclear.ObjectiveTo explore the cross-sectional associations between dietary inflammatory indices, periodontitis, and PRISm, and to examine whether periodontitis statistically accounts for part of the diet-PRISm associat...