|
Between-method statistical comparisons for oxygen saturation measurements in hemorrhagic shock status (SpO2trachea versus SvO2blood) |
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| Time |
n |
MD (%) |
SD |
SEM |
LOA |
SEL |
|
|
||||||
| Pre-shock period |
20 |
-0.845 |
3.065 |
0.685 |
-6.975 to 5.285 |
1.187 |
| Immediately after onset of shock |
20 |
0.495 |
3.014 |
0.674 |
-5.533 to 6.523 |
1.167 |
| 15 min after shock |
20 |
-0.165 |
3.210 |
0.718 |
-6.585 to 6.255 |
1.243 |
| 30 min after shock |
20 |
-1.275 |
2.759 |
0.617 |
-6.793 to 4.243 |
1.069 |
| 15 min after resuscitation |
20 |
-0.315 |
1.509 |
0.3374 |
-3.333 to 2.703 |
0.584 |
| 30 min after resuscitation |
20 |
0.460 |
2.463 |
0.551 |
-4.466 to 5.386 |
0.954 |
| 60 min after resuscitation |
20 |
1.865 |
2.844 |
0.636 |
-3.823 to 7.553 |
1.101 |
|
LOA, limits of agreement (MD ± 1.96SD); MD, mean difference; SD, standard deviation of the difference; SEL, standard error of limit; SEM, standard error of the mean difference; SpO2trachea, mixed venous oxygen saturation measured through the left main bronchus; SvO2blood, oxygen saturation from pulmonary artery samples. | ||||||
Wang et al. Critical Care 2006 10:R7 doi:10.1186/cc3914 |
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