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Table 1 Patient characteristics and differences between the 2006/2009 samples and the pooled estimation/validation sets

From: Mapping health outcome measures from a stroke registry to EQ-5D weights

  2006 sample (n = 105) 2009 sample (n = 439) P Estimation set (n = 272) Validation set (n = 272) P
Mean/Proportion SD Mean/Proportion SD   Mean/Proportion SD Mean/Proportion SD  
Age 71 13 74 11 0.048 73 12 73 11 0.934
Male sex 55% 0.50 54% 0.50 0.785 52% 0.50 56% 0.50 0.391
RLS 2-8 6% 0.23 10% 0.30 0.199 9% 0.29 9% 0.29 1.000
Stroke unit 45% 0.50 75% 0.43 0.000 69% 0.46 69% 0.46 0.831
Ischemic stroke 80% 0.40 89% 0.32 0.019 87% 0.34 87% 0.34 0.899
Previous stroke 17% 0.38 26% 0.44 0.063 24% 0.43 24% 0.43 0.862
Atrial fibrillation 20% 0.40 26% 0.44 0.234 28% 0.45 21% 0.41 0.048
Diabetes 13% 0.34 19% 0.39 0.211 19% 0.40 16% 0.36 0.283
Hypertension 51% 0.50 58% 0.49 0.219 54% 0.50 60% 0.49 0.150
Smoker 20% 0.40 14% 0.35 0.120 16% 0.37 15% 0.35 0.637
Proxy response 2% 0.14 9% 0.29 0.011 10% 0.29 6% 0.24 0.153
EQ-5D index 0.57 0.42 0.61 0.38 0.258 0.61 0.41 0.60 0.36 0.756
EQ-5D VAS 62 24 66 23 0.104 66 24 64 22 0.492
  1. Note: SD standard deviation, RLS 2-8 sluggish or comatose at hospital admission; VAS visual analogue scale.