Table 1.

Component SF-36.

SF-36 Component	Physical	Mental
Domains	Functional capacity (10 items)	Vitality (4 items)
	Physical appearance (4 items)	Social aspect (2 items)
	Pain (2 items)	Emotional aspect (3 items)
	General health (5 items)	Mental health (5 items)
Subtotal of items	21	14
Evaluation of health changes one year ago (1 item)
Total items	36