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. 2012 Apr 23;590(Pt 14):3277–3290. doi: 10.1113/jphysiol.2012.230425

Table 2.

Coefficient data for each subject, used to calculate the CO2 reactivity and multiple correlation coefficient in the exponential and linear regression models

ICA blood flow VA blood flow ECA blood flow
Exponential Linear Exponential Linear Exponential Linear
Subjects no. Sex R2 Exponent R2 Slope R2 Exponent R2 Slope R2 Exponent R2 Slope
1 W 0.91 0.046 0.78 5.64 0.99 0.041 0.98 3.99 0.86 0.016 0.82 1.60
2 W 0.94 0.030 0.86 3.54 0.88 0.024 0.81 2.91 0.03 −0.003 0.02 −0.18
3 W 0.98 0.027 0.97 2.40 0.90 0.016 0.84 1.64 0.83 0.007 0.81 0.69
4 M 0.95 0.036 0.89 4.37 0.99 0.023 0.98 2.43 0.17 0.006 0.20 0.87
5 M 0.94 0.023 0.91 2.29 0.99 0.017 1.00 1.59 0.52 0.005 0.52 0.55
6 M 0.93 0.022 0.87 2.23 0.89 0.015 0.89 1.33 0.26 −0.002 0.24 −0.22
7 M 0.97 0.036 0.99 3.08 0.88 0.018 0.83 1.88 0.87 0.020 0.86 1.67
8 W 1.00 0.022 0.97 2.30 0.95 0.021 0.89 2.04 0.54 0.003 0.53 0.35
9 M 0.96 0.027 0.90 2.88 0.96 0.011 0.96 1.12 0.17 0.003 0.19 0.30
10 W 0.90 0.027 0.79 3.04 0.97 0.025 0.99 2.13 0.87 0.007 0.86 0.72
All subjects mean 0.95 0.030 0.89 3.18 0.94 0.021 0.92 2.11 0.51 0.006 0.50 0.63
SD 0.03 0.008 0.07 1.09 0.05 0.008 0.07 0.84 0.34 0.007 0.32 0.64
Men mean 0.95 0.029 0.91 2.97 0.94 0.017 0.93 1.67 0.40 0.006 0.40 0.63
SD 0.02 0.007 0.05 0.86 0.05 0.004 0.07 0.51 0.30 0.008 0.29 0.70
Women mean 0.95 0.031 0.88 3.38 0.94 0.025 0.90 2.54 0.63 0.006 0.61 0.63
SD 0.04 0.009 0.09 1.36 0.05 0.010 0.08 0.93 0.36 0.007 0.35 0.65
MCA Vmean BA Vmean
Exponential Linear Exponential Linear
Subjects no. Sex R2 Exponent R2 Slope R2 Exponent R2 Slope
1 W 0.89 0.028 0.88 3.20 0.99 0.016 0.99 1.56
2 W 0.99 0.053 0.90 4.88 0.98 0.021 0.98 2.05
3 W 0.99 0.036 0.99 2.86 — — — —
4 M 0.88 0.045 0.81 4.48 — — — —
5 M 0.99 0.043 0.96 3.62 — — — —
6 M 0.97 0.032 0.97 2.78 0.95 0.024 0.91 2.66
7 M 0.98 0.044 0.98 3.80 — — — —
8 W 0.94 0.028 0.98 2.29 0.99 0.033 0.98 3.18
9 M 0.95 0.028 0.98 2.36 0.98 0.019 0.95 2.08
10 W 0.99 0.031 0.97 2.79 0.95 0.023 0.88 2.22
All subjects mean 0.96 0.037 0.94 3.31 0.97 0.023 0.95 2.29
SD 0.04 0.009 0.06 0.87 0.02 0.006 0.05 0.56
Men mean 0.95 0.038 0.94 3.41 0.96 0.021 0.93 2.37
SD 0.05 0.008 0.07 0.84 0.02 0.004 0.03 0.41
Women mean 0.96 0.035 0.95 3.21 0.98 0.023 0.96 2.25
SD 0.04 0.011 0.05 0.99 0.02 0.007 0.05 0.68