Statistical questions about schizophrenia

Question 1 of 8

What is the lifetime probability of developing a schizophrenic psychosis?

• a0.5 % – 1 %
• b5 %
• c3 %

Question 2 of 8

If one identical twin develops a schizophrenic psychosis, what is the risk that the other twin develops it too?

• a20 %
• b40 %
• c50 %
• d60 %

Question 3 of 8

Which statement about the course of schizophrenic psychoses is wrong?

• aThe illness usually runs a chronic course.
• bAbout 1/3 of patients have a single episode and are well afterwards.
• cAbout 1/3 experience recurring episodes but can live relatively normally in between.
• dAbout 1/3 have a chronic course.
• eRelapses and chronic courses can usually be prevented through early treatment.

Question 4 of 8

What share of patients diagnosed with a psychosis at the early-detection clinic report using cannabis regularly?

• a75 %
• b100 %
• c50 %
• d25 %

Question 5 of 8

How many people with schizophrenia feel discriminated against by the general population?

• a10 – 20 %
• b40 – 50 %
• c60 – 70 %

Question 6 of 8

What share of survey respondents believe that people with schizophrenia are dangerous?

• a25 %
• b50 %
• c75 %
• d90 %

Question 7 of 8

How many survey respondents would not marry someone with schizophrenia?

• a35 %
• b50 %
• c80 %
• d90 %

Question 8 of 8

At what average age does schizophrenia typically appear?

• aAfter age 40
• bMen in their early 20s, women in their mid-20s
• cWomen around 45, men around 25
• dWomen around 25, men around 45