More than 1/4 of individuals who suffer a hip fracture become disabled within a year.
Magaziner J, Fredman L, Hawkes W, Hebel J, et al. Changes in Functional Status Attributable to Hip Fracture: A comparison of hip fracture patients to community-dwelling aged. Am J Epidemiol. 2003; 157(11): 1023-31. http://aje.oxfordjournals.org/cgi/content/abstract/157/11/1023