Abstract
Mental-health service utilization among elderly people has been shown to be low relative to younger age groups. This study was done to determine the current proportion of elderly persons served in a university-affiliated psychiatry outpatient clinic, and to better characterize elderly patients who receive specialized mental-health care in this setting. The proportion of visits from elderly patients (aged 60 and over) was found to be 16%. Demographic and clinical characteristics of a sample of 140 consecutive geriatric patients evaluated at the clinic were obtained. The data revealed that the patients had a mean age of 74.7 ± 7.5 (SD) years, and were mostly female (72.1%) and white (78.6%). Surprisingly, the age distribution was found to be bell shaped, with a small upper tail. The three most prevalent psychiatric diagnoses were depression (56.4%), dementia (35.7%), and substance use disorder (20%). Overall, 59.3% of geriatric patients had a history of prior psychiatric treatment. Females were significantly more likely than males to have a psychiatric history (69.3% vs. 33.3%, P = .0001). Among patients with a psychiatric history, females were more likely to have a current diagnosis of major depression (P = .0006), while males were more likely to have a current substance use disorder (P = .03). The prevalence of dementia increased with each successive decade above 60, while the occurrence of bipolar and adjustment disorders was confined to younger geriatric patients. Elderly patients receiving psychiatric treatment in the clinic thus formed a heterogeneous group. Gender, age, and presence of a psychiatric history were all associated with differences in prevalence and distribution of various mental disorders in this geriatric psychiatry outpatient clinic.
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