Special Needs & Medical Observational ✓ Peer reviewed

Association between longitudinal trajectories of cognitive functioning and all-cause mortality among middle-aged and older adults in South Korea: Exploring the mediating role of oral health-related quality of life.

GeroScience · Baek SU, Yoon JH · 2026-08-04

Researchers tracked cognitive function changes over time in over 5400 South Korean adults and found that those with declining or persistently low cognition faced higher mortality risk, with oral health-related quality of life partially explaining this relationship.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.

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