text: The prevalence of cluster<unk>  is approximately 3 to 150 per 100,000 individuals worldwide.*Worldwide Prevalence of patient with secondary<unk>  is approximately 18%. The prevalence of Migraine<unk>  is estimated to be 12 to 15 percent of general population.The prevalence of frequent episodic tension type<unk>  is 21.6 percent.Patients of all age groups may develop<unk> .Cluster<unk>  commonly affects individuals between 20 to 40years of age.Cluster<unk>  usually affects women of the Aferican -American and Caucasians.women are more commonly affected by migraine than men. 
  Men are more commonly affected by cluster than women. The male to female ratio is approximately 2.5 to 1.
option_0: Headache epidemiology and demographics
option_1: Otalgia epidemiology and demographics
option_2: Dizziness epidemiology and demographics
option_3: Migraine epidemiology and demographics
option_4: Transient ischemic attack epidemiology and demographics
option_5: Trigeminal neuralgia epidemiology and demographics
option_6: Anxiety epidemiology and demographics
option_7: Multiple sclerosis epidemiology and demographics