作者单位:Univ Laval CERSSPL UL, Ctr Rech Soins & Serv Premiere, Quebec City, PQ, Canada[1]Univ Laval, Fac Med, Quebec City, PQ, Canada[2]Univ Toronto 1, Dept Family & Community Med, Toronto, ON, Canada[3]Ctr Dexcellence Vieillissement Quebec, Quebec City, PQ, Canada[4]