Oklahoma (0.2), Mississippi (0.0), and North Dakota (0.0) are the states with the lowest concentration of geriatric psychiatrists per 100,000 older adults. To assist with this important task, Psychiatric Times has compiled a 2-part Special Report focused on psychiatric disorders among older adults. Additionally, we hope that the information in these articles will help clinicians improve the quality of life of the older adults with psychiatric disorders who are under their care. Mental health of older adults. Prevalence of psychiatric disorders in U.S. older adults: findings from a nationally representative survey.