This resource from the World Health Organization (WHO) is a quality of life assessment tool. WHO defines Quality of Life as an individual's perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards and concerns.

Assessment resources from the "100 Million Healthier Lives" initiative.

Health-related quality of life (HRQOL) is defined as an individual’s or group’s perceived physical and mental health over time.” Analysis of HRQOL surveillance data can identify subgroups with relatively poor perceived health and help guide interventions to improve their situations and avert more serious consequences.