Table 4 Preoperative parameters and coefficients for prediction of postoperative cardiac surgery outcome by the SPSS and CLASSIF1 classifiers
SPSS classifier | CLASSIF1 classifier | ||
|---|---|---|---|
Parameter (pi) | Coefficients (ci)* | Parameters | POEE patients classification mask** |
C1-Inhibitor | - | ||
C3 | + | ||
C5 | 0.005105 | C5 | + |
C5a/C5-ratio | 0.788609 | ||
IL-10 | 0.086488 | ||
sL-selectin | 0.001721 | sL-selectin | + |
% Neutrophils | 0.024991 | ||
Neutrophil count | + | ||
Monocyte count | 0.002542 | ||
Eosinophil count | - | ||
Hematocrit | 0.06021 | Hematocrit | + |
Serum protein | -0.136055 | ||
Body weight | 0.067000 | ||
Partial thrombin time | - | ||
Potassium | - | ||
(Constant | -0.939490) | ||
- Formula of the discriminant function: *Constant +
, resulting value <0, non-POEE risk, if >0, POEE risk. pi = measured parameter values; ci = classifier coefficients. **Parameter on average above (+) or below (-) the 25–75% percentile thresholds for C1-inhibitor: 300/377 mg/l (25%/75%); C3: 1181/1456 mg/l; C5: 100/131 mg/l; sL-selection: 1102/1501 g/l, neutrophil count: 3900/5520cells/μl; eosinophil count: 85/269cells/μl; hematocrit: 34.0/39.8%; partial thrombin time: 33.3/37.9s; K+: 4.04/4.38mmol/l. Non-POEE patients have, on average, all parameters unchanged (0) between the 25–75% percentile thresholds. Unknown patients are classified according to the highest number of positional coincidences, with the POEE or the non-POEE patients classification mask.
, resulting value <0, non-POEE risk, if >0, POEE risk. pi = measured parameter values; ci = classifier coefficients. **Parameter on average above (+) or below (-) the 25–75% percentile thresholds for C1-inhibitor: 300/377 mg/l (25%/75%); C3: 1181/1456 mg/l; C5: 100/131 mg/l; sL-selection: 1102/1501 g/l, neutrophil count: 3900/5520cells/μl; eosinophil count: 85/269cells/μl; hematocrit: 34.0/39.8%; partial thrombin time: 33.3/37.9s; K+: 4.04/4.38mmol/l. Non-POEE patients have, on average, all parameters unchanged (0) between the 25–75% percentile thresholds. Unknown patients are classified according to the highest number of positional coincidences, with the POEE or the non-POEE patients classification mask.