Table 4.
Lack of significant positive correlation between free hemoglobin concentration, as determined with four methods and packed red blood cell units transfused within 3 days or 4 weeks before surgery, and diagnosis of severe sepsis, respectively.
| ELISA | Harboe [13] | Noe [14] | Fairbanks [15] | |
|---|---|---|---|---|
| 3 days/4 weeks | 3 days/4 weeks | 3 days/4 weeks | 3 days/4 weeks | |
| Postoperative patients | ||||
| Correlation coefficient | 0.066/0.076 | 0.168/0.158 | 0.169/0.178 | 0.084/0.094 |
| Significance level | 0.455/0.381 | 0.510/0.066 | 0.050/0.039 | 0.331/0.278 |
| Patients with sepsis | ||||
| Correlation coefficient | -0.154/-0.093 | -0.204/-0.039 | -0.204/-0.041 | -0.217/-0.088 |
| Significance level | 0.51/0.244 | 0.01/0.623 | 0.009/0.604 | 0.006/0.271 |
Given are nonparametric correlation coefficients and significance levels according to Spearmen-Rho.