Objectives
Relatively little is known about whether mental disorders other than depression remit versus persist in later life, especially within nationally representative samples. Our objectives were to examine the prevalence of persistent mood, anxiety, and substance disorders in older adults, and to explore a range of physical and mental health predictors of disorder chronicity.
Methods
This study utilized a three-year follow-up design using Waves 1 (2001/2002) and 2 (2004/2005) of the National Epidemiologic Survey of Alcohol and Related Conditions (NESARC). Participants included 1,994 adults 55+ who had a past-year mental disorder at Wave 1 and who completed Wave 2. The primary outcome was the prevalence of persistent mood, anxiety, and substance disorders at Wave 2. Potential predictors of persistence included sociodemographic variables, physical health (chronic health conditions and physical health-related quality of life), and mental health (childhood adversity, suicide attempts, mental health-related quality of life, comorbid mental disorders, personality disorders, and lifetime treatment seeking).
Results
With the exception of nicotine dependence, the prevalence of persistent mood, anxiety, and substance disorders ranged from 13% to 33%. Only younger age predicted substance disorder chronicity. Significant predictors of persistent mood and anxiety disorders included physical and mental health comorbidity, physical and mental health-related quality of life, suicide attempts, comorbid personality disorders, and treatment seeking.
Conclusions
At least two thirds of mental disorders in older adults were not persistent. Sociodemographic variables had little influence on chronicity, whereas a number of markers of mental disorder severity and complexity predicted persistent mood and anxiety disorders. The findings have important treatment and prevention implications.