Persistent depressive disorder in adults requires depressed mood most of the day for at least how long?

Persistent depressive disorder in adults requires depressed mood most of the day for at least how long?

• A. One year
• B. Six months
• C. Two years
• D. One month

Answer: (C)

Persistent depressive disorder in adults is defined by a depressed mood most of the day, for most days, for at least two years. This long duration marks its chronic nature, distinguishing it from major depressive episodes, which can be shorter (at least two weeks) and are not required to be continuous for years. In adults, the two-year threshold confirms a persistent, enduring pattern rather than episodic mood disturbance. The one-year duration is the criterion used for children and adolescents, not adults. Six months or one month are far too short to establish the chronic pattern characteristic of this disorder.

Persistent depressive disorder in adults is defined by a depressed mood most of the day, for most days, for at least two years. This long duration marks its chronic nature, distinguishing it from major depressive episodes, which can be shorter (at least two weeks) and are not required to be continuous for years. In adults, the two-year threshold confirms a persistent, enduring pattern rather than episodic mood disturbance. The one-year duration is the criterion used for children and adolescents, not adults. Six months or one month are far too short to establish the chronic pattern characteristic of this disorder.