[1] McGill Univ, Dept Family Med, Montreal, PQ H3S 1Z1, Canada
[2] CHU Sherbrooke, Fac Med & Sci Sante, Dept Community Hlth Sci, Sherbrooke, PQ J1H 5N4, Canada
[3] Montreal Hlth & Social Serv Agcy, Populat Hlth & Hlth Serv Team, Publ Hlth Directorate Montreal, Montreal, PQ H2L 1M3, Canada
[4] INSPQ, Quebec City, PQ G1V 5B3, Canada
[5] Univ Montreal, Hos Res Ctr, Montreal, PQ H2X 0A9, Canada