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第45卷第2期 蔡清清,尤含笑,王 磊,等. NLR和SII对抗MDA5抗体阳性皮肌炎伴快速进展型肺炎的预后价值[J].
                  2025年2月                     南京医科大学学报(自然科学版),2025,45(2):196-207                        ·203 ·


                                              表4 NLR和SII对RPILD和生存的预测价值
                                   Table 4 表4 The predictive value of NLR and SII for RPILD and survival

                 Variable  AUC     95%CI      P       Cut⁃off  Sensitivity(%)  Specificity(%)  Youden index  Group
                 NLR       0.67   0.56-0.78   0.001     6.12      56.76          77.01         0.34      RP⁃ILD
                 SII       0.64   0.53-0.73   0.007  1 200.82     51.35          78.16         0.30      RP⁃ILD
                 NLR       0.73   0.63-0.83  <0.001     6.12      62.16          79.31         0.41      Survival
                 SII       0.69   0.58-0.80  <0.001    875.79     72.97          62.07         0.35      Survival


                     A                                               B
                                      SII≤1 200.82  SII>1 200.82           1.00       NLR≤6.12  NLR>6.12
                           1.00
                         Cumulative  non⁃RPILD incidence  0.75  P=0.001  Cumulative  non⁃RPILD incidence  0.75  P < 0.001
                           0.50
                                                                           0.50
                           0.25
                                                                           0.25
                           0.00
                                0                    10                    0.00  0                   10
                                        Time(months)                                    Time(months)
                                 Number at risk                                  Number at risk
                        SII<1 200.82 86              50                  NLR≤6.12 83                 51
                        SII≥1 200.82 38              12                  NLR>6.12 41                 11
                                  0                  10                           0                  10
                                         Time(months)                                    Time(months)
                                                                          +
                          图2 低/高SII(A)、低/高NLR(B)分层的非RPILD anti⁃MDA5 DM患者的Kaplan⁃Meier生存曲线
                Figure 2  Kaplan⁃Meier survival curve of anti⁃MDA5 DM patients with non⁃RPILD stratified by low/high SII(A)and low/
                                                          +
                        high NLR(B)


                     A                                                B
                                     SII≤875.79  SII>875.79                          NLR≤6.12  NLR>6.12
                           1.00                                           1.00
                          Survival probability  0.50                      Survival probability  0.50
                                                                          0.75
                           0.75
                                                                          0.25
                           0.25
                           0.00  P < 0.001                                0.00  P < 0.001
                               0                    10                         0                    10
                                        Time(months)                                   Time(months)
                                 Number at risk                                 Number at risk
                        SII≤875.79 64               44                  NLR≤6.12 83                 59
                         SII>875.79 60              29                  NLR>6.12 41                 14
                                 0                  10                           0                  10
                                         Time(months)                                   Time(months)
                                                                   +
                          图3 低/高SII(A)、低/高NLR(B)分层的anti⁃MDA5 DM患者总体生存的Kaplan⁃Meier生存曲线
                Figure 3  Kaplan⁃Meier survival curves for overall survival of anti⁃MDA5 DM patients stratified by low/high SII(A)and
                                                                           +
                        low/high NLR(B)

                teins and activate transforming growth factor⁃β(TGF⁃β),  For example,the activated human T lymphocytes inhibit

                thus promoting further ECM accumulation. Addition⁃  the TGF⁃β⁃induced fibroblast differentiation into myo⁃
                                                                                                 [49]
                ally,neutrophil extracellular traps stimulate the TGF⁃  fibroblasts through prostaglandin D  . On the other
                β production and activate myofibroblasts,leading to en⁃  hand,Th1 cells alleviate fibrosis by secreting interleu⁃
                                                                                            [15]
                dothelial damage and the increased infiltration of in⁃  kin⁃12(IL⁃12)and interferon⁃γ  .
                flammatory cells in the lungs,exacerbating interstitial  In healthy adult non⁃elderly populations,normal
                                     [15]
                inflammation and fibrosis  . The role of lymphocytes  NLR values range from 0.78 to 3.53,with a mean value
                                                                                                             [50]
                in this process is complex and somewhat controversial.  of 2.8 in patients with connective tissue conditions  .
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