Quality of life and socio-demographic factors associated with nutritional risk in Brazilian community-dwelling individuals aged 80 and over: cluster analysis and ensemble methods oleh Guilherme Carlos Brech, Guilherme Carlos Brech, Vanderlei Carneiro da Silva, Angelica Castilho Alonso, Angelica Castilho Alonso, Adriana Machado-Lima, Daiane Fuga da Silva, Glaucia Pegorari Micillo, Marta Ferreira Bastos, Rita de Cassia de Aquino