<prompt> All of the following are true about bipolar disorder except:Prevalence is more amongst females than malesLifetime Prevalance is around 1Mean age of onset is 21 yearsPrevalence varies according to socioeconomic status  <response>: 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 