Prevalence of Depressive Symptoms and Depressive Disorder in Primary Care Patients Over 65 Years of Age

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Abstract
The aim of this study was to estimate the prevalence of depressive symptoms and depressive disorder (ICHPPC-2-defined) in patients over 65 years of age. A cross-sectional, partly two-phased, study was performed in general practices in The Netherlands. A total of 384 consecutive patients aged 65 and above, 116 men and 265 women were included, both during practice visits and home visits. Depressive symptoms were recorded with the Zung Self-rating Depression Scale, the Geriatric Depression Scale, and with physician ratings. Assessments of depressive disorder were based on an adaptation of interview ratings with the Montgomery Åsberg Depression Rating Scale. The proportion of patients considered to have depressive symptoms ranged from 11 to 29% of patients, depending on the self-report instrument and the cut-off point. According to interviews a depressive disorder was estimated to be present in 17%. The high prevalence of depressive symptoms and depressive disorder suggest a higher index of suspicion of depres sion in elderly general practice patients.

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