Prevalence of Dementia Among Older Patients: A Hospital-Based Study in Iran

Am J Alzheimers Dis Other Demen. Nov-Dec 2019;34(7-8):500-506. doi: 10.1177/1533317519848234. Epub 2019 May 7.


Background: Dementia constitutes a public health hazard in developing countries. The aim of this study was to evaluate the prevalence of dementia and its associated factors in older hospitalized patients.

Methods: The participants of this cross-sectional study consisted of older patients admitted to medical wards in Rasoul-e Akram hospital in Tehran, Iran. Mini-Mental State Examination, Mini-Cog test, Geriatric Depression Scale, Activities of Daily Living-Instrumental Activities of Daily Living (ADL-IADL) scale, and socioeconomic questionnaires were used.

Results: A total of 205 elderly inpatients were included. The mean age was 71.33 ± 7.35 years; 63.4% of the participants had normal cognitive function, while 36.6% had some degree of cognitive impairment. There was a statistically significant relationship between gender, age, number of children, and occupation and the prevalence of dementia.

Conclusion: Appropriate cognitive screening of older patients upon admission to hospitals could help identify potential adverse events and enhance the quality of care for patients with comorbid dementia.

Keywords: dementia; hospital; older adults; prevalence.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Aging*
  • Cognitive Dysfunction / epidemiology*
  • Cross-Sectional Studies
  • Dementia / epidemiology*
  • Female
  • Humans
  • Iran / epidemiology
  • Male
  • Middle Aged
  • Prevalence