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Association between pulmonary ventilatory function and mild cognitive impairment: A population-based study in rural
Cuiying Gu1,2, Mingfeng Ma3, Jiahui Xu1
1Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China.
Frontiers in Public Health
|November 21, 2022
Summary
Poor pulmonary function is linked to a higher risk of mild cognitive impairment (MCI) in rural Chinese adults. Early cognitive screening is recommended for individuals with reduced lung function.
Area of Science:
- Neurology
- Pulmonology
- Public Health
Background:
- Mild cognitive impairment (MCI) is a reversible stage preceding dementia.
- The link between pulmonary function and MCI risk requires further investigation.
Purpose of the Study:
- To examine the association between pulmonary ventilatory function and the risk of MCI in a rural Chinese population.
Main Methods:
- A cross-sectional study of 2,947 rural Chinese adults (≥35 years) without prior neurological conditions.
- Pulmonary function assessed via spirometry; MCI evaluated using the Montreal Cognitive Assessment-Basic for Chinese scale.
- Logistic regression and restricted cubic splines analyzed the relationship between pulmonary function and MCI risk.
Main Results:
- MCI prevalence decreased as pulmonary function increased across quartiles.
- Lower pulmonary function (first quartile) was significantly associated with increased MCI risk (OR=1.691).
- An L-shaped, non-linear relationship was observed between pulmonary function and MCI risk (P=0.032), particularly in females and less active individuals.
Conclusions:
- Reduced pulmonary function is a risk factor for MCI in rural Chinese adults.
- The non-linear association highlights the importance of pulmonary health for cognitive function.
- Suggests the need for early cognitive assessments in populations with impaired lung function.
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