Association between Body Mass Index and Cognitive Impairment in the Elderly in Guandu District of Kunming City

Qinghua YI; Juan XU; Ailian LI; Linyun TIAN; Dongli SANG; Jing XIONG; Chang DENG

doi:10.12259/j.issn.2095-610X.S20241019

Volume 45 Issue 10

Oct. 2024

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Qinghua YI, Juan XU, Ailian LI, Linyun TIAN, Dongli SANG, Jing XIONG, Chang DENG. Association between Body Mass Index and Cognitive Impairment in the Elderly in Guandu District of Kunming City[J]. Journal of Kunming Medical University, 2024, 45(10): 122-129. doi: 10.12259/j.issn.2095-610X.S20241019

Citation:

Qinghua YI, Juan XU, Ailian LI, Linyun TIAN, Dongli SANG, Jing XIONG, Chang DENG. Association between Body Mass Index and Cognitive Impairment in the Elderly in Guandu District of Kunming City[J]. Journal of Kunming Medical University, 2024, 45(10): 122-129. doi: 10.12259/j.issn.2095-610X.S20241019

Citation:

Qinghua YI, Juan XU, Ailian LI, Linyun TIAN, Dongli SANG, Jing XIONG, Chang DENG. Association between Body Mass Index and Cognitive Impairment in the Elderly in Guandu District of Kunming City[J]. Journal of Kunming Medical University, 2024, 45(10): 122-129. doi: 10.12259/j.issn.2095-610X.S20241019

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Association between Body Mass Index and Cognitive Impairment in the Elderly in Guandu District of Kunming City

doi: 10.12259/j.issn.2095-610X.S20241019

1.
Dept. of Endocrinology，Guandu District People’s Hospital，Kunming Yunnan 650200
2.
Dept. of Internal Medicine，Community Health Service Center of Guanshang Street，Guandu District，Kunming Yunnan 650200
3.
Dept. of Neurology，The Second Affiliated Hospital of Kunming Medical University，Kunming Yunnan 650101，China

Received Date: 2024-07-10
Available Online: 2024-10-21
Publish Date: 2024-10-31

Abstract

Abstract

Objective To explore the association between body mass index （BMI） and cognitive impairment in the elderly in Guandu district of Yunnan province. Methods The data were collected from the community health check-ups for elderly individuals in Guandu District, Yunnan Province, from 2021 to 2023. It includes cross-sectional data from the Mini-Mental State Examination （MMSE） and physical examinations for those over 65 years （n = 17, 352）. Results Among 17, 352 participants, elderly individuals in this region had a low level of education, with a prevalence of cognitive impairment at 22.31%. Women had higher rates than men, and the higher the education level, the lower the prevalence. At baseline, the proportions of underweight, normal weight, overweight, and obese individuals were 2.5%, 41.9%, 40.7%, and 14.9% respectively. When controlling for factors like age, gender, education level, smoking, diabetes, hypertension, and stroke, those with a BMI of 25-27.9 kg/m² had the lowest risk of cognitive impairment and the highest MMSE value. Compared to those with a normal BMI, their risk decreased by 11%. In contrast, participants with a BMI less than 18.5 kg/m² or greater than or equal to 28 kg/m² had a 50% and 60% increase in the risk of cognitive impairment, respectively. Elderly women with a BMI greater than 25 kg/m² had a 12% higher incidence of cognitive dysfunction compared to similarly weighted men, and those with a BMI greater than or equal to 28 kg/m² had a 42% higher rate compared to men of the same weight. Conclusion This study suggests that the prevalence of cognitive impairment among the elderly surveyed in Guandu District, Kunming, is not low. Those who are underweight or obese have a higher risk of cognitive impairment. Maintaining an appropriate weight, especially a BMI between 25 and 27, is a protective factor against cognitive impairment for the elderly in this region, particularly for women.
- Elderly people,
- Body mass index,
- Cognitive impairment

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