Table 3.

Distribution of the sample by the SF-6D

	Physical functioning (%)	Role limitation (%)	Social functioning (%)	Pain (%)	Mental health (%)	Vitality (%)
1*	8 (0.7)	173 (15.8)	17 (1.6)	7 (0.6)	6 (0.6)	2 (0.2)
2	22 (2.0)	5 (0.5)	60 (5.5)	5 (0.5)	130 (11.9)	194 (17.7)
3	304 (27.7)	135 (12.3)	482 (44.0)	59 (5.4)	582 (53.1)	498 (45.4)
4	356 (32.5)	783 (71.4)	481 (43.9)	452 (41.2)	364 (33.2)	287 (26.2)
5	87 (7.9)	NA	56 (5.1)	333 (30.4)	14 (1.3)	115 (10.5)
6†	319 (29.1)	NA	NA	240 (21.9)	NA	NA

*No problem.

†Severe problem.

NA, not applicable; SF-6D, Short-Form six-dimension.