[1] Univ Montreal, IRSPUM Inst Rech Sante Publ, Montreal, PQ, Canada
[2] Univ Montreal, Ctr Rech Lea Roback Inegalites Sociales Sante Mon, Montreal, PQ, Canada
[3] Univ Montreal, Fac Sci Infirm, Montreal, PQ, Canada
[4] Univ Montreal, Ctr Rech, Inst Univ Geriatrie Montreal, Montreal, PQ, Canada
[5] Ctr Hosp Univ Montreal, CRCHUM Ctr Rech, Montreal, PQ, Canada
[6] Univ Montreal, Dept Med Sociale & Prevent, Montreal, PQ, Canada