Inaccuracy in self-report of fractures may underestimate association with health outcomes when compared with medical record based fracture registry..

Siggeirsdottir K, Aspelund T, Sigurdsson G, Mogensen B, Chang M, Jonsdottir B, Eiriksdottir G, Launer LJ, Harris TB, Jonsson BY, Gudnason V. Eur J Epidemiol 2007;22(9):631-9.