Exhibit 32. Results of logistic regression using the derivation dataset for only CABG surgeries.
| Variable | Estimate | tValue | Probability |
|---|---|---|---|
| Intercept | -10.9133 | -4.25511 | 0.00002 |
| Transfer admission | 1.285104 | 2.234972 | 0.02542 |
| BMI | 0.111739 | 3.758852 | 0.00017 |
| History of MRSA | 2.214599 | 3.213444 | 0.00131 |
| Postop admission | 2.03457 | 3.397303 | 0.00068 |
| Preop hematocrit | 0.145933 | 1.881071 | 0.06342 |
| Preop hemoglob | -0.1963 | -0.86847 | 0.39360 |
| Surgery duration | -0.00573 | -2.02865 | 0.04249 |
BMI = body mass index; MRSA = methicillin-resistant Staphylococcus aureus; Postop = postoperative; Preop = preoperative.
Exhibit 33. Results of logistic regression using the validation dataset for only CABG surgeries.
| Variable | Estimate | tValue | Probability |
|---|---|---|---|
| Intercept | -4.41194 | -2.00311 | 0.04533 |
| Transfer admission | -0.36612 | -0.46516 | 0.64182 |
| BMI | 0.087611 | 2.610583 | 0.00904 |
| History of MRSA | 1.072824 | 1.320566 | 0.18665 |
| Postop admission | 0.646026 | 1.244747 | 0.21324 |
| Preop hematocrit | 0.027258 | 0.274814 | 0.78942 |
| Preop hemoglob | -0.20223 | -0.70553 | 0.50265 |
| Surgery duration | -0.00372 | -1.3105 | 0.19003 |
BMI = body mass index; MRSA = methicillin-resistant Staphylococcus aureus; Postop = postoperative; Preop = preoperative.
Exhibit 34. Results of logistic regression using the combined dataset for only CABG surgeries
| Variable | Estimate | tValue | Probability |
|---|---|---|---|
| Intercept | -7.01035 | -4.29561 | 0.00002 |
| Transfer admission | 0.616473 | 1.420047 | 0.15560 |
| BMI | 0.095185 | 4.350031 | 0.00001 |
| History of MRSA | 1.565599 | 3.098649 | 0.00195 |
| Postop admission | 1.267214 | 3.445955 | 0.00057 |
| Preop hematocrit | 0.087034 | 1.579951 | 0.12344 |
| Preop hemoglob | -0.22319 | -1.51617 | 0.14453 |
| Surgery duration | -0.00477 | -2.36402 | 0.01809 |
BMI = body mass index; MRSA = methicillin-resistant Staphylococcus aureus; Postop = postoperative; Preop = preoperative.
