This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mood Disorders, Subject name: Psychiatry
All of the following are true about bipolar disorder except: 
Select and explain. 
A. Prevalence is more amongst females than males, B. Lifetime Prevalance is around 1%, C. Mean age of onset is 21 years, D. Prevalence varies according to socioeconomic status
A: Prevalence is more amongst females than males
Answer: A: Prevalence is more amongst females than males 
Explanation: The prevalence if bipolar is almost equal in men and women with male to female ratio being 1.1:1 Impoant points about Bipolar Disorder: Life time prevalence = 1% Males: Female = 1.1 : 1 ICD - 11 classifies bipolar disorder in two types- Bipolar I - mania + depression Bipolar II - Hypomania + depression Mean age of onset Bipolar I - 18 yrs Bipolar II - mid 20s