Table 1.

Definitions of health-related quality of life and functional health status

Health-related quality of life:	Level of satisfaction a person inputes to those aspects of his or her life that are affected by the effects of illness and its treatment [18–20]. Incorporation of a person’s valuation of his life distinguishes HRQoL from other measures of well-being [21, 22].
Functional health status:	Reflection of the (severity of) signs and symptoms and the adequacy of daily functioning across various life-domains in an individual with a certain health condition [23–26].