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Validation Baseline and 6 month data from randomized control trial [Mayo et al, unpublished work]      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