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第45卷第8期
               ·1154 ·                           南 京    医 科 大 学 学         报                        2025年8月


                             表4 MELD、MELD⁃Na、MELD 3.0 评分对肝硬化患者 3月和1年预后的ROC曲线分析
              Table 4  ROC curve analysis of MELD,MELD⁃Na,and MELD 3.0 scores for the prognosis of patients with liver cirrhosis at 3
                      month and 1 year

                  Variable   AUROC(95% CI)     Cutoff  Sensitivity  Specificity  PPV  NPV  Z     P *   Power #
                3⁃month
                  MELD 3.0  0.859(0.805-0.913)  18      82.35      82.97    47.1  96.2    NA     NA     NA
                  MELD⁃Na   0.857(0.802-0.912)  17      82.35      80.54    43.7  96.1   0.450  0.652   0.131
                  MELD      0.856(0.800-0.911)  17      79.41      85.14    49.5  95.7   0.567  0.571   0.241
                1⁃year
                  MELD 3.0  0.841(0.796-0.886)  18      73.04      86.07    65.1  90.0    NA     NA     NA
                  MELD⁃Na   0.832(0.785-0.880)  16      75.65      82.97    61.3  90.5   1.338  0.181   0.964
                  MELD      0.830(0.782-0.878)  17      66.96      90.09    70.6  88.4   1.421  0.155   0.996
                 *Comparison of the AUROC of the prognostic model against MELD3.0 was performed using DeLong’s test. Statistical significance at P < 0.05;#
              The power analysis for comparing AUC differences between MELD 3.0 and other models(MELD⁃Na and MELD). AUROC:area under the receiver oper⁃
              ating characteristic curve;CI:confidence interval;MELD,model for end⁃stage liver disease;NPV:negative predictive value;PPV:positive predictive
              value;NA,not applicable.
                        (%)  100  MELD 3.0                              (%)  100  MELD 3.0
                   A                                               B
                        Observed survival frequencies  50  MELD⁃Na      Observed survival frequencies  50  MELD⁃Na
                                                                         75
                          75
                                MELD
                                                                               MELD
                                                                         25
                          25
                           0
                             0      25    50     75    100                0  0     25    50     75    100
                                Predicted survival probability(%)              Predicted survival probability(%)
                 A:Calibration curves for MELD 3.0,MELD⁃Na,and MELD scores predicting 3⁃month mortality. B:Calibration curves for MELD 3.0,MELD⁃Na,
              and MELD scores predicting 1⁃year mortality.
                                            图2 3种评分预测3月和1年死亡的校准曲线
                        Figure 2 Calibration curves of the three scoring systems for predicting 3⁃month and 1⁃year mortality

                            表5 MELD、MELD⁃Na、MELD 3.0 评分对肝硬化患者 3月和1年预后的NRI和IDI分析
              Table 5  NRI and IDI analysis of MELD,MELD⁃Na,and MELD 3.0 scores for the prognosis of patients with liver cirrhosis at
                      3 month and 1 year
                       Variable           NRI         95% CI         P         IDI         95% CI         P
                3⁃month
                  MELD 3.0 vs. MELD⁃Na   -0.091    -0.365-0.097     0.315     -0.014    -0.037-0.007    0.196
                  MELD 3.0 vs. MELD       0.240     0.009-0.401     0.032      0.016    -0.007-0.039    0.200
                1⁃year
                  MELD 3.0 vs. MELD⁃Na    0.047    -0.007-0.176     0.862      0.002    -0.008-0.011    0.545
                  MELD 3.0 vs. MELD       0.201     0.079-0.401    <0.001      0.032     0.006-0.057    0.020


              3.0的AUC值在大部分分组患者中略高于MELD⁃Na                       力、AUC 分别为 0.859(0.805~0.913)和 0.841(0.796~
              和MELD评分,但差异无统计学意义(P > 0.05,表6)。                   0.886),但和 MELD⁃Na、MELD 评分比较,差异无统
                                                                计学意义(P > 0.05)。对肝硬化人群重新分类中,
              3  讨 论
                                                                MELD 3.0 评分能将 18.0%的 MELD⁃Na 评分患者的
                  本研究发现MELD 3. 0评分预测肝硬化失代偿                      评分区间上调,21.5%的MELD评分患者被重新归类
              期患者的 3 个月和 1 年的死亡具有较高的区分能                         为较高区间的评分。在预测 3 个月死亡率上,
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