....WHAT IS QUALITY OF LIFE AND HEALTH-RELATED QUALITY OF LIFE? A REVIEW OF THE CONCEPTS AND SOME ATTEMPTS AT MEASUREMENT Quality of life research, then, spans a range of topics, from quality of life in the last year of life (Lawton et al. 1990) to quality of life in urban environments (Rogerson et al. 1989). As was illustrated earlier, quality of life is an amorphous concept, that has a usage across many disciplines -- geography, literature, philosophy, health economics, advertising, health promotion and the medical and social sciences (e.g. sociology and psychology). It is a vague concept; it is multidimensional and theoretically incorporates all aspects of an individual's life. Quality of life has also been defined as the `output' of the inputs of the physical and the spiritual (Liu 1974); as the degree to which a person accomplishes life goals (Cella and Cherin 1987); and even quantified crudely as a formula in which quality of life (QL) is a product of one's natural endowment (NE) and the effort made on one's behalf by the family (H) and society (S), such that QL ]] NE ]] H ]] S (Shaw 1977). The meaning of the concept of quality of life is thus arguably dependent on the user of the term, his or her understanding of it, and his or her position and agenda in the social and political structure (Edlund and Tancredi 1985): `Quality of life is a vague and ethereal entity, something that many people talk about, but which nobody very clearly knows what to do about' (Campbell...
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