Fig. 2From: The burden of headache disorders in India: methodology and questionnaire validation for a community-based survey in Karnataka StatePrevalence of primary headache disorders according to expert diagnosis in the validation sample (n = 381) (All-MIG migraine + probable migraine, All TTH tension-type headache + probable tension-type headache, CDH headache occurring on ≥15 days/month, NOS not otherwise specified [unclassifiable])Back to article page