Chapter 1 Introduction: Relevance of the Age of Onset of Mental Disorders to Research in Psychiatry and to the Organization of Services for People with Mental Illness

Chapter 2 Lessons from Knowledge on the Correlates of the Age of Onset of Physical Illness

Chapter 3 Does the Age of Onset Shape the Clinical Picture, Course and Consequences of Schizophrenia? Results from a Long-Term Epidemiological Study

Chapter 4 The Age of Onset of Schizophrenia Spectrum Disorders

Chapter 5 The Age of Onset of Bipolar Disorders

Chapter 6 The Age of Onset of Unipolar Depression

Chapter 7 The Age of Onset of Anxiety Disorders

Chapter 8 The Age of Onset of Substance Use Disorders

Chapter 9 The Age of Onset of Alcohol Use Disorders

Chapter 10 The Age of Onset of Personality Disorders

Chapter 12 The Age of Onset of Attention-Deficit Hyperactivity Disorder

Chapter 13 The Age of Onset of Dementias

Chapter 14 Conclusions: From the Study of the Age of Onset to the Development of Age-Specific Interventions in Mental Health