8Tiemeier H, Breteler M, Hofman A, Stiinen T. A multivariate score objectively assessed health of depressed elderly V-J]. J Clin Epidemiol, 2005,58 : 1134-1141.
9Vink D, Aartsen M, Schoevers R. Risk factors for anxiety and depression in the elderly: a review [J] J Affect Disord, 2008, 106 :29-44.
10Xie L Q, Zhang J P, Peng F, Jiao N N. Prevalence and related influencing factors of depressive symptoms for empty-nest eld- erly living in the rural area of Yongzhou,China [J] Arch Gero- ntol Geriatr, 2010,50 24-29.
