This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophrenia and other psychotic disorders, Subject name: Psychiatry
The bad prognostic factors of schizophrenia include 
Select and explain. 
A. Age 18 yrs, B. Age 40 yrs, C. Sudden onset, D. Female
A: Age 18 yrs
Answer: A: Age 18 yrs 
Explanation: Age below 18years early age of onset, poor compliance to medications, poor insight, poor knowledge, attitude and practice among family members, expressed emotions among family members , male gender, insidious onset of illness , simple and hebephrenic type of schizophrenia are usually bad prognostic factors for schizophrenia Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg: 370