Depression and Anxiety: Course & Prognosis

Mild to moderate depressive episodes generally last 4-30wks. How long, on average, do severe depressive episodes last?

Chronic depression is defined as depressive episodes lasting more than 1 year. What percentage of depressive episodes will develop a chronic course?

There are many available antidepressant treatments, which can reduce length of depressive episodes, and, if used long term, chronicity (normally 10-20%). What percentage will develop chronicity after antidepressant therapy?

Risk of recurrent depressive episodes is very variable between individuals. At 10 years, the risk of recurrence is what?

Suicide rates in those with depression are increased compared to the general population. How high may suicide rates be in those with depression?

Anxiety is the most common psychiatric disorder. What is it's 1-year prevalence?

Panic disorders are often co-morbid with other medical conditions. What percentage of those with panic disorders also suffer from depression?

Generalised anxiety disorder (GAD) is a state of 'excess worry' about everyday events/problems. It is often chronic - after 6 years, what percentage of patients will have mild residual symptoms (after treatment)?