[1] Sichuan Univ, West China Hosp, Dept Psychiat, 28 Dian Xin Nan Jie, Chengdu 610041, Peoples R China
[2] Sichuan Univ, West China Hosp, Natl Clin Res Ctr Geriatr, 28 Dian Xin Nan Jie, Chengdu 610041, Peoples R China
[3] Fourth Peoples Hosp Urumqi, Dept Clin Psychol 3, Urumqi, Xinjiang, Peoples R China
[4] Sichuan Univ, West China Sch Publ Hlth, Chengdu, Peoples R China
[5] Sichuan Univ, West China Fourth Hosp, Chengdu, Peoples R China
[6] Sichuan Univ, West China Sch Publ Hlth, Dept Epidemiol & Hlth Statisticsf, Chengdu, Peoples R China
[7] Jinxin Psychiat Hosp Chengdu, Dept Geriatr, Chengdu, Peoples R China