Randomized trial explores cognitive performance in older adults, indicating ventilation impacts from solid fuel use.
Key Points
This study investigates the connection between solid fuel use and cognitive performance in older adults, focusing on the mediating role of indoor window ventilation.
Analyzed data from 7354 older adults aged ≥ 65 years from the 2017–2018 China Longitudinal Healthy Longevity Survey.
Cognitive performance was assessed with the 24-item mini-mental state examination.
Linear regression was used to explore associations and test the mediation model with Bootstrap methods.
Solid fuel use was negatively associated with cognitive performance (β = −0.16, 95% CI [−0.31, −0.02], p = 0.034).
Higher indoor window ventilation was positively related to cognitive performance (β = 0.03, 95% CI [0.01, 0.07], p = 0.037).
Indoor window ventilation partially mediated the effects of solid fuel use on cognitive performance, explaining 10.0% of the total variance.