Probe | Thenar eminence | Coefficient of variability (%) | Forearm | Coefficient of variability (%) | P valuea |
---|---|---|---|---|---|
15 mm | |||||
Absolute StO2 (%) | 90.4 (85.2, 93.5), 76.6 to 95.3b | 5.6 | 85.2 (80.7, 90.2), 65.8 to 93.6b | 7.8 | 0.031 |
DeO2 (%O2/minute) | -12.8 (-16.2, -11.3) | 26.1 | -8.5 (-10.3, -7.8) | 42.7 | 0.011 |
ReO2 (%O2/minute) | 297.2 (213.7, 328.6) | 21.5 | 98.6 (53.7, 157.8) | 68.4 | < 0.0001 |
25 mm | |||||
Absolute StO2 (%) | 92.7 (89.4, 94.7), 81.9 to 95.9b | 4.6 | 87.3 (81.7, 90.9), 76.0 to 95.2b | 6.7 | 0.016 |
DeO2 (%O2/minute) | -18.0 (-24.1, -14.8) | 36.5 | -9.9 (-15.3, -6.5) | 53.6 | < 0.0001 |
ReO2 (%O2/minute) | 401.6 (331.7, 543.2) | 28.2 | 160.5 (132.3, 366.9) | 66.8 | 0.012 |
Comparison of 15 mm vs. 25 mm probe (P value) | |||||
StO2 | 0.020 | ||||
DeO2 | < 0.0001 | ||||
ReO2 | < 0.0001 |