12. Which of the following statement concerning the epidemiology of pain is least likely? (A) In adult, the most common regional pain syndromes are those of low back, hip and shoulder pain. (B) Higher prevalence rates are noted in women who report more severe and persistent pain. (C) Abdominal pain predominates at older ages, while oral and facial pain among young adults. (D) Social disadvantages also characterize persons at increased risk of pain. (E) Mechanical factors are important in the development of back pain and extremity pain.