1517-9702 1517-9702 S1517-97022015000300663 10.1590/S1517-9702201507133096 Brasil Brasil 00 07 2015 00 07 2015 41 3 663 694

79-92 2 93-115 2 1 4 4 17-24 147-58 IBGE IBGE 9-24 135-47 9-10