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Mean DRI by Model for End-stage Liver Disease (MELD) subgroup. The greatest discrepancy between low DRI centers and high DRI centers can be seen among the patients with low MELD scores, suggesting that centers that are more aggressive about using high risk organs do so primarily among the low MELD patients. P<0.001 by LR test in hierarchical modeling, adjusted for patient and center covariates (see Methods).
