Table 1.
Patient characteristics and differences between the 2006/2009 samples and the pooled estimation/validation sets
|
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 |
Note: SD standard deviation, RLS 2-8 sluggish or comatose at hospital admission; VAS visual analogue scale.