Late life depression among elderly hypertensive patients

Abstract

To determine the correlates of late life depression among elderly hypertensive patients as seen in Zaria Northern Nigeria. Elderly hypertensive patients attending the cardiac clinic of Ahmadu Bello University Teaching Hospital Zaria were recruited for the study. They were interviewed using socio-demographic Questionnaire, Consortium to Establish Registry for Alzheimer's Disease (CERAD), Geriatric Depression Scale-30 and Stick Design Test. Patients that had a score of 11 and above in the GDS-30 were further interviewed using the Geriatric Mental State Schedule (GMSS) AGECAT. Data obtained from the study was analyzed using Statistical Package for Social Sciences windows version 15. All tests of significance were carried out at 5% level of probability. A total of 179 patients participated in the study out of which 110 (65.1%) were females. The mean age of the subject was 68.23±5.72 years. The rate of late life depression based on International Classification of Diseases (ICD), 10th edition and Geriatric Mental State Schedule AGECAT (GMSS-AGECAT) diagnoses were 17. 88% (32) and 20.11 % (36) respectively. There was very good agreement between diagnoses based on ICD-10 criteria and GMSS-AGECAT (kappa=0.82, p<.001). Late life depression was significantly associated with recent bereavement (OR=11.04, p=.001), poverty (OR=4.39, p=.036) and lower diastolic blood pressure (7.04, p=.008). The rate of late life depression in this study is comparable to that of other studies reported in the literature. Poverty and bereavement but not high blood pressure, are important factors associated with depression in the elderly.