Table 6. Blood flow waveform features during hypercapnia by sex. Data are reported as median (interquartile range) 13 male and 17 female subjects at rest. Bold p-values denote significance assessed at the 0.05 level with a two-sided Wilcoxon rank sum test. ((Abbreviations: EDF = End diastolic flow, MF = mean flow, PSF = peak systolic flow, AMP = pulse amplitude, AUC = pulse area under the curve, PI = pulsatility index, RI = resistivity index)).
| Parameter | Males (n = 13) | Females (n = 17) | p-value |
|---|---|---|---|
| EDF (1e-9 cm2/s) | 6.07 (4.51, 7.61) | 10.95 (7.38, 15.55) | 0 . 004 |
| MF (1e-9 cm2/s) | 8 (6.77, 12.95) | 16.2 (10.68, 21.43) | 0.002 |
| PSF (1e-9 cm2/s) | 15.36 (13.07, 20.57) | 25.21 (18.81, 32.95) | 0.006 |
| AMP (1e-9 cm2/s) | 8.98 (7.8, 11.94) | 12.97 (10.15, 18.92) | 0.026 |
| AUC (1e-9 cm2/s) | 2.92 (2.11, 3.91) | 4.81 (4.16, 6.66) | 0.007 |
| PI (unitless) | 1.12 (0.79, 1.43) | 0.83 (0.73, 1.06) | 0.197 |
| RI (unitless) | 0.58 (0.48, 0.68) | 0.51 (0.47, 0.65) | 0.586 |