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Comparison of percent change and absolute change of NIHSS.
| Groups | n | Percent change NIHSS | Absolute change NIHSS | |||
| ≤25% | >25%, and ≤50% | >50%, and ≤75% | >75% | M(min, max) | ||
|
| ||||||
| Observation | 36 | 4(11.1%) | 19(52.8%) | 3(8.3%) | 10(27.8%) | 2(−4,11) |
| Control | 36 | 4(11.1%) | 3(8.3%) | 11(30.6%) | 18(58.0%) | 1(−3,6) |
| Z- value | −3.312 | −2.780 | ||||
| P- Value | 0.001 | 0.005 | ||||
