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Table 2: Effect of BP reduction on perfusion parameters
Perfusion Parameters and Region Treatment Group P Value
<150 mm Hg (n = 37) <180 mm Hg (n = 36)
Absolute ipsilateral CPP 
    Perihematoma 13.9 ± 5.5 14.8 ± 3.4 .38
    Hemisphere 14.0 ± 5.3 15.2 ± 3.9 .27
    External BZ 14.1 ± 4.6 15.8 ± 4.6 (n = 35) .11
    Internal BZ 13.5 ± 4.6 (n = 27) 16.5 ± 4.7 (n = 29) .02^{^a}
Absolute contralateral CPP 
    Perihematoma 13.9 ± 5.5 14.8 ± 4.0 .43
    Hemisphere 14.3 ± 5.8 15.2 ± 3.8 .45
    External BZ 15.1 ± 6.5 16.0 ± 3.7 (n = 35) .46
    Internal BZ 15.0 ± 7.1 (n = 27) 16.0 ± 4.6 (n = 29) .48
Absolute ipsilateral CVR 
    Perihematoma 0.32 ± 0.10 0.36 ± 0.11 .11
    Hemisphere 0.29 ± 0.08 0.32 ± 0.08 .14
    External BZ 0.31 ± 0.11 0.37 ± 0.12 (n = 35) .05^{^a}
    Internal BZ 0.37 ± 0.13 (n = 27) 0.44 ± 0.16 (n = 29) .08
Absolute contralateral CVR 
    Perihematoma 0.28 ± 0.09 0.33 ± 0.11 .56
    Hemisphere 0.28 ± 0.08 0.32 ± 0.09 .09
    External BZ 0.32 ± 0.11 0.38 ± 0.12 (n = 35) .04^{^a}
    Internal BZ 0.36 ± 0.12 (n = 27) 0.40 ± 0.14 (n = 29) .16
Relative CPP 
    Perihematoma 1.02 ± 0.16 1.02 ± 0.15 .96
    Hemisphere 0.99 ± 0.09 1.00 ± 0.10 .75
    External BZ 0.99 ± 0.19 1.00 ± 0.26 (n = 35) .76
    Internal BZ 1.01 ± 0.17 (n = 27) 1.01 ± 0.16 (n = 29) .99
Relative CVR 
    Perihematoma 1.16 ± 0.23 1.11 ± 0.17 .36
    Hemisphere 1.04 ± 0.10 1.02 ± 0.08 .32
    External BZ 1.01 ± 0.18 1.01 ± 0.22 (n = 35) .91
    Internal BZ 1.02 ± 0.17 (n = 27) 1.04 ± 0.15 (n = 29) .52
↵a Significant.