Table 4.
Correlation (Spearman's ρ) of SIS and Short‐Form SIS With Other Quality of Life and Functional Outcome Measures
| SIS | SF‐SIS | |
|---|---|---|
| Acute trial data | ||
| SIS | 1.00 | |
| SF‐SIS | 0.94 | 1.00 |
| mRS | −0.87 | −0.80 |
| BI | 0.89 | 0.80 |
| NIHSS | −0.77 | −0.73 |
| EQ‐5D | 0.88 | 0.82 |
| EQ‐5D VAS | 0.73 | 0.72 |
| Rehabilitation study data | ||
| SIS | 1.00 | |
| SF‐SIS | 0.96 | 1.00 |
| SIS‐VAS | 0.56 | 0.57 |
| BI | 0.72 | 0.65 |
| EQ‐5D | 0.69 | 0.69 |
| EQ‐5D VAS | 0.46 | 0.40 |
BI indicates Barthel Index; EQ‐5D, EuroQOl; mRS, modified Rankin Scale; NIHSS, National Institutes of Health Stroke Scale; SIS, Stroke Impact Scale; SF‐SIS, Short‐Form SIS; VAS, visual analog scale. All P<0.001.