Shingles pain occurs in ~50% of cases in older adults
Complications of shingles—including postherpetic neuralgia (PHN)—occur in almost 50 percent of older persons with the disease.
Oxman, M.N., M.J. Levin, G.R. Johnson, K.E. Schmader, S.E. Straus, et al; for the Shingles Prevention Study Group. A Vaccine to Prevent Herpes Zoster and Postherpetic Neuralgia in Older Adults. NEJM. 2005; 352(22): 2271-84. http://www.nejm.org/doi/full/10.1056/NEJMoa051016