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Table 1 Population sources and sample characteristics by age, gender, functional independence, physical and mental health.

From: The development and preliminary validation of a Preference-Based Stroke Index (PBSI)

Steps

Population Source

Age (mean/sd)

Gender (men/women) (%)

Barthel score of 100 (%)

SF-36 PCS (mean/sd)

SF-36 MCS (mean/sd)

Item generation

Baseline data from cohort study [30]

     
 

Stroke subjects (n = 493)

70/12

61/39

57%

42/10

51/9

 

Control subjects (n = 442)

65/12

33/67

93%

45/11

52/9

Item selection

Mailed survey

     
 

Stroke subjects (n = 91)

69/11

71/29

76%

49/8

52/8

Pilot test

Mailed survey

     
 

Stroke subjects (n = 68)

72/12

53/47

65%

45/12

49/11

Elicitation of preference weights

Face-to-face interviews

     
 

Stroke subjects (n = 32)

68/11

75/25

Not evaluated

Not evaluated

Not evaluated

 

Caregivers (n = 28)

59/20

22/78

   

Validation

Baseline and 6 month data from randomized control trial [Mayo et al, unpublished work]

     
 

Stroke subjects (n = 91)

69/15

64/36

75%

43/12

50/11