Research Article
Increased Blood Pressure Variability Is Associated with Worse Neurologic Outcome in Acute Anterior Circulation Ischemic Stroke
Table 2
Spearman rank correlation coefficient for blood pressure indices and mRS and mean ± SD values.
| Variable | Mean ± SD | Spearman rho | value |
| 0–24 hours ( patients, 4,714 vital sign readings) |
| SBP SD | | 0.22 | 0.002 | DBP SD | | 0.15 | 0.03 | SBP CV | | 0.18 | 0.01 | DBP CV | | 0.14 | 0.04 | SBP SV | | 0.22 | <0.001 | DBP SV | | 0.04 | 0.56 | Mean SBP | | 0.14 | 0.04 | Mean DBP | | −0.07 | 0.33 |
| 0–72 hours ( patients, 9,539 vital sign readings) |
| SBP SD | | 0.23 | 0.002 | DBP SD | | 0.09 | 0.19 | SBP CV | | 0.20 | 0.01 | DBP CV | | 0.12 | 0.09 | SBP SV | | 0.23 | <0.001 | DBP SV | | −0.01 | 0.90 | Mean SBP | | 0.12 | 0.09 | Mean DBP | | −0.07 | 0.30 |
| 0–120 hours ( patients, 12,972 vital sign readings) |
| SBP SD | | 0.25 | 0.001 | DBP SD | | 0.10 | 0.16 | SBP CV | | 0.22 | <0.001 | DBP CV | | 0.13 | 0.08 | SBP SV | | 0.25 | 0.002 | DBP SV | | 0.00 | 0.99 | Mean SBP | | 0.10 | 0.20 | Mean DBP | | −0.07 | 0.35 |
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