Risk factors for mild cognitive impairment among older adults in a hospital in southern Nigeria

Afr J Prim Health Care Fam Med. 2023 Apr 25;15(1):e1-e9. doi: 10.4102/phcfm.v15i1.3942.

Abstract

Background: About 63% of people living with mild cognitive impairment (MCI) and dementia live in low- and middle-income countries (LMICs). Emerging evidence suggests that early risk factors for the development of MCI and dementia can be modified by public health and preventive intervention approaches.

Aim: This study aimed to assess the prevalence of MCI in older adult patients and its relationship with some risk factors.

Setting: The study was conducted among older adults at the Geriatric Clinic of the Family Medicine Department of a hospital in southern Nigeria.

Methods: A cross-sectional study was carried out involving 160 subjects aged 65 years and above over a period of 3 months. Socio-demographic and clinical data were obtained using an interviewer-administered questionnaire. Subjects were accessed for impaired cognition using the 10-word delay recall test scale. Data were analysed using SPSS version 23.

Results: There were 64 males and 96 females; male to female ratio was 1:1.5. Majority of the study population were in age range of 65-74 years. The overall prevalence of MCI was 59.4%. Respondents with tertiary education were 82% less likely to have MCI on logistic regression analysis (OR = 0.18, 95% CI = 0.465-0.719).

Conclusion: Mild cognitive impairment was prevalent among older adults in this study and was found to be significantly associated with low level of education.Contribution: It is therefore recommended that screening for MCI and known risk factors should be prioritized at geriatric clinics.

Keywords: dementia; geriatric clinic.; mild cognitive impairment; older adults; prevalence; risk factors.

MeSH terms

  • Aged
  • Cognitive Dysfunction* / diagnosis
  • Cognitive Dysfunction* / epidemiology
  • Cross-Sectional Studies
  • Dementia* / diagnosis
  • Dementia* / epidemiology
  • Female
  • Hospitals
  • Humans
  • Male
  • Nigeria / epidemiology
  • Prevalence
  • Risk Factors