Prevalence of anxiety and depression among elderly females complaining of subjective cognitive decline

Abstract

The prevalence of cognitive impairment is increasing significantly worldwide among the elderly population which has a great social and economic burden. The economic burden of dementia is expected to reach more than $1 trillion as of the population ages. Huge researches are being directed towards the identification of early symptoms of dementia and the implementation of various interventions. SCD is the earliest warning sign of cognitive impairment and is defined as the self-reported feeling of being worse or more frequent confusion or memory impairment. There is no standard formal approach to assess the prevalence of SCD up till now. And this explains the wide variation in the findings regarding SCD epidemiology including prevalence measurement. Many tools have been implemented to identify elder individuals with SCD, that vary noticeably across studies and range from a direct single question about memory status or decline to in-depth questionnaires that target multiple cognitive domains Several psychiatric conditions and subclinical psychiatric situations can influence cognition the most common of which are depression, anxiety, and sleep disorders. A reciprocal relation is considered to be present between these variables and SCD. Various cross-sectional