[Cognitive Impairments and Associated Factors in Community-dwelling Elderly in Chengdu, Sichuan]

Sichuan Da Xue Xue Bao Yi Xue Ban. 2018 Sep;49(5):759-764.
[Article in Chinese]

Abstract

Objective: To determine the prevalence and associated factors of cognitive impairments in the community-dwelling elderly aged 60 years or older in Chengdu of Sichuan province.

Methods: A random cluster sampling strategy was adopted to select 621 community-dwelling elderly. Face-to-face interviews were conducted to assess the cognitive status of the participants. 2 tests and logistic regression analyses were performed to identify factors associated with cognitive impairments.

Results: About 40.9% of the participants had cognitive impairments. Those attended primary schools had a lower risk of cognitive impairments [odds ratio OR)=0.369, P<0.001] compared with the illiterate ones. Older age OR=1.505 for 70-79 years, P=0.042; OR=3.069 for ≥80 years, P<0.001), cerebrovascular disease OR=2.159, P=0.003) and smoking OR=2.388, P<0.001) were risk factors of cognitive impairments. Men had lower risk OR=0.489, P=0.005) of cognitive impairments than women.

Conclusion: The prevalence of cognitive impairments in community-dwelling elderly in Chengdu is high in comparison with those in other cities. Illiteracy, older age (over 70 years), women, smoking, and cerebrovascular disease are risk factors of cognitive impairments.

Keywords: Cognitive impairment; Community-dewelling elderly; Prevalence; Risk factors.

MeSH terms

  • Aged
  • Cerebrovascular Disorders
  • China / epidemiology
  • Cognitive Dysfunction / epidemiology*
  • Educational Status
  • Female
  • Humans
  • Male
  • Middle Aged
  • Odds Ratio
  • Prevalence
  • Risk Factors
  • Smoking