Table 3.
Univariate analysis predicting platelet transfusion.
| Clinical factors | Odds ratio (95% CI) | P-value |
|---|---|---|
| Age (months) | 0.95 (0.93, 0.98) | 0.03 |
| Weight (kg) | 0.98 (0.78, 1.18) | 0.16 |
| Cyanotic heart disease | 0.82 (0.58, 1.05) | 0.28 |
| CPB time (per 10 min) | 1.5 (1.31, 1.68) | 0.008 |
| STAT mortality category 4 or 5 | 3.64 (3.40, 3.87) | <0.001 |
| Platelet count | 0.88 (0.58, 1.17) | 0.58 |
| Pre-operative labs* | ||
| TEG-PM ADP (mm) | 0.79 (0.65, 0.93) | 0.04 |
| TEG-PM AA (mm) | 0.84 (0.57, 1.11) | 0.41 |
| MEIA ADP (AUC) | 0.99 (0.81, 1.15) | 0.92 |
| MEIA AA (AUC) | 0.98 (0.86, 1.10) | 0.83 |
*
Pre-operative labs drawn after induction of anesthesia. CPB, cardiopulmonary bypass; STAT, Society of Thoracic Surgeons-European Association for Cardio-Thoracic Surgery; TEG-PM, thromboelastography with platelet mapping; ADP, adenosine diphosphate receptor; AA, arachidonic acid receptor; MEIA, multiple electrode impedance aggregometry; AUC, area under the curve.