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Proposed Prognostic Risk Groups for Platinum-Treated Small Cell Lung Cancer Patients
| High Risk (2 Factors) | Elevated LDH | And | ≥ 5% Weight Loss Or Zubrod Performance Status > 0 |
| Intermediate Risk (1 Factor) | Elevated LDH (& not High Risk) | Or | Male |
| Low Risk (0 Factors) | Normal LDH | And | Female |
Note: Lactate dehydrogenase (LDH) and sex were the only variables that define the intermediate and low risk categories
