But far more disabled people have such common chronic conditions as pain in the lower back (the greatest global cause of years lived with a disability).
The National Center for Health Statistics has estimated that thirty-seven million adultsan adults have lost some hearing, and, according to the National Academy of Sciences, hearing loss is, worldwide, the "fifth leading cause of years lived with disability".
Osteoarthritis is the eleventh cause of years lived with disability.
The World Health Organization reported that migraine is ranked as the 19th cause of years living with disability [6].
Self-immolation is the third leading cause of years of life lost (YLL) among women in Iran.
Surprisingly, despite that headache disorders are collectively the third highest cause of years lived with disability (YLDs) worldwide [10], no centre recorded patients' disability scores.
Worldwide, migraine is the seventh leading specific cause of years of life lost to disability (YLDs), responsible for 2.9% of all YLDs, and more than half of all YLDs attributable to neurological disorders [1-3].
In the Global Burden of Disease survey 2010 GBD20100), TTH and migraine were the second and third most prevalent disorders worldwide [8], while migraine was the seventh-highest specific cause of years of life lost to disability (YLDs) [9].
Tension-type headache (TTH) and migraine are the second and third most prevalent disorders in the world[5], and migraine is the seventh highest specific cause of years of life lost to disability (YLDs)[5, 6].
Migraine is the seventh leading specific cause of years of life lost to disability (YLDs), responsible for 2.9% of all YLDs, and more than half of all YLDs attributable to neurological disorders [1-3].
It is now recognised that headache disorders, especially tension-type headache (TTH) and migraine, are among the most common medical conditions [1, 2] and collectively the third highest cause of years of life lost to disability (YLDs) [5, 6].
