Summary Table of Contents+. 1  Rule 3100. Compliance with Auditing and Related Professional Practice Standards. 2  Rule 3101. Certain Terms Used in Auditing and Related Professional Practice Standards. 3  Rule 3200. Auditing Standards. 4  Rule 3210. Amendments. 5  Rule 3211. Auditor Reporting of Certain Audit Participants. 6  Rule 3300T.
Age of onset of schizophrenia varies among people, but occurs in early adulthood for the vast majority of people--typically between the ages of 16 and 30. While schizophrenia affects men and women in equal numbers, symptoms tend to begin at a younger age for men.
The cumulative lifetime risk for men and women, on the other hand, seems to be identical. This suggests that the gender difference is modulated by age. The onset of schizophrenia in men peaks at around age 20-25 years, whereas the onset peak is later in women, at around age 25-30 years. In addition, there is a second smaller peak in women after age 45.