The instrument World Health Organization Quality of Life Olders WHOQOL-OLD is specific to the elderly situation and has also been validated in Brazil.
El instrumento World Health Organization Quality of Life Olders WHOQOL-OLD es específico para ancianos, también validado en Brasil.
Já o instrumento World Health Organization Avality of Life Olders WHOQOL-OLD é específico para idosos, também validado no Brasil.