Table 4

PCS and MCS mean scores for ME/CFS cases and selected SF-36 disease-specific norms

Disease

Physical

Component

Summary

Mental

Component

Summary


mean

SDa

mean

SDa


ME/CFS (n = 170)

26.8

8.4

34.1

11.3

Back pain/sciatica (n = 2648)

45.7

10.7

47.6

11.1

Cancer (except skin) (n = 253)

40.9

9.9

47.6

10.6

Depression (n = 942)

45.4

11.6

36.3

11.9

Diabetes (n = 1011)

41.1

11.2

47.8

11.5

Heart disease (n = 691)

38.9

10.0

48.3

10.7

Limited use of arm(s)/leg(s) (n = 605)

39.0

11.5

46.7

12.2

Lung disease (n = 328)

38.3

10.8

45.6

11.5

Osteoarthritis (n = 1013)

38.6

10.1

48.0

10.9

Rheumatoid arthritis (n = 514)

40.0

10.6

47.8

11.3

Vision impairment (n = 628)

44.0

11.6

45.8

11.9


a SD = Standard Deviation

Nacul et al. BMC Public Health 2011 11:402   doi:10.1186/1471-2458-11-402

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