Research Article
Identifying the Prognosis Factors in Death after Liver Transplantation via Adaptive LASSO in Iran
Table 3
Coefficients of nonzero factors in Ridge and Adaptive LASSO logistic regression.
| Characteristic | Method | Ridge regression | Adaptive LASSO regression | Coefficient | SE | Coefficient | SE | RR |
| PNF | 8.51 | 1.98 | 0.56 | 0.10 | 1.75 | Renal failure after transplantation | 13.59 | 1.86 | 0.35 | 0.07 | 1.42 | Lung complication after transplantation | 6.42 | 1.85 | 0.23 | 0.10 | 1.26 | PTLD | 3.70 | 1.74 | 0.21 | 0.22 | 1.23 | Vascular complication after transplantation | 6.49 | 1.80 | 0.17 | 0.10 | 1.19 | Exploration after transplantation | 9.93 | 1.92 | 0.14 | 0.06 | 1.15 | Type of transplantation | | | | | | Whole | Baseline | — | Baseline | — | — | Split | 4.06 | 1.89 | 0.00 | 0.06 | 1.00 | Partial | 2.96 | 1.26 | 0.03 | 0.15 | 1.03 | Duration of operation (hour) | 6.31 | 1.97 | 0.02 | 0.01 | 1.02 | Donor sex | | | | | | Male | Baseline | — | Baseline | — | — | Female | 4.25 | 2.03 | 0.02 | 0.02 | 1.02 | Donor age | 4.45 | 1.93 | 0.00 | 0.01 | 1.00 | Diabetes after transplantation | −4.02 | 1.89 | 0.00 | 0.03 | 1.00 |
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