Table 2.

Detailed information on instrument, scales and system used for measurement of health status.

	Measure	Instrument, Scale or System Used for Classification	Reference
Physical health	Self-reported general health	The 36-Item Short Form Health Survey (SF-36)	[23]
	Physical Component Score	The 36-Item Short Form Health Survey (SF-36)	[26]
	Electrocardiography	The Minnesota Code Classification System	[27]
Functional independence	Activities of Daily Living (ADL)	The Barthel ADL Index	[28]
	Instrumental activities of daily living (IADL)	The Lawton IADL Scale	[29]
Burden of disease	Burden of illness	Cumulative Illness Rating Scale for Geriatrics (CIRS-G)	[30]
Mental health	Cognitive function	Mini Mental State Examination (MMSE)	[31]
	Anxiety	The Brief Scale for Anxiety (BSA)	[32]
	Depressive symptoms	The Montgomery Åsberg Depression Rating Scale (MADRS)	[33]
	Mental Component Score	The 36-Item Short Form Health Survey (SF-36)	[26]
	Minor depression disorder	The Diagnostic and Statistical Manual of Mental Disorders, 4th ed. (DSM-IV-TR)	[24]
	Major depression disorder	The Diagnostic and Statistical Manual of Mental Disorders, 5th ed. (DSM-5)	[25]
Personality	Extroversion	The Eysenck Personality Inventory	[34]
	Neuroticism	The Eysenck Personality Inventory	[34]