Magnitude of Neurocognitive Impairment and Severity of Depression in Geriatric Population

Abstract

Background and Objective:  With the increasing life expectancy of the populations and rising prevalence of depressive and neurocognitive disorders, there is a need to address the association between the two in terms of magnitude of the neurocognitive disorders and the severity of depression. The current study addresses this issue and aims to observe the association between the two. Methods:  This cross-sectional descriptive study was conducted from September 2014 to March 2015 at the Institute of Psychiatry at Benazir Bhutto Hospital, Rawalpindi, Pakistan where consecutive patients aged ≥ 65 years were screened for depression using Geriatric Depression Scale (GDS). Neurocognitive impairment was assessed using Mini Mental State Examination (MMSE). -square test was used to compute the association between depression severity and neurocognitive deficit. Results:  There was approximately equal gender distribution with a mean age of 63.6 ± 9.68 years. Eighty six percent of the study population was found to be suffering from clinical depression while seventy percent had neurocognitive deficit. The severity of depression came out to be directly proportional to the magnitude of the neurocognitive disorder (P = 0.000) with 68.8% of the patients with severe depression having moderate to severe neurocognitive deficit. Conclusions:  Depression is associated with significant neurocognitive impairment in elderly in the local population; higher the severity of depression more the magnitude of cognitive impairment.