Table 1.

Scales of the HRQoL questionnaire Short Form 36.

SF-36 scale	Number of items	Description
Physical health
Physical functioning	10	Limitations in various physical activities
Role physical	4	Problems with work or other daily activities as a result of physical health
Bodily pain	2	Limitations due to pain
General health perceptions	5	Evaluation of personal health
Mental health
Vitality	4	Energy and fatigue
Social functioning	2	Interference with normal social activities due to physical and emotional problems
Role emotional	3	Problems with work or other daily activities as a result of emotional problems
Mental health	5	Psychological distress and well-being