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Table 2 Univariate and multivariate analysis of OS in training cohort (N = 499)

From: Nomogram to predict overall survival based on the log odds of positive lymph nodes for patients with endometrial carcinosarcoma after surgery

  Univariate analysis Multivariate analysis
Variables HR 95% CI P value HR 95% CI P value
Age (years) 1.03 1.017–1.043 < 0.001 1.024 1.01–1.037 < 0.001
Race
 White    Reference    Reference
 Black 1.621 1.177–2.232 0.003 1.353 0.961–1.904 0.083
 Other 1.279 0.84–1.948 0.251 1.348 0.859–2.116 0.194
Tumor size (mm)
  ≤ 58 mm    Reference    Reference
 >58 mm 2.209 1.653–2.953 < 0.001 1.580 1.161–2.151 0.004
FIGO2009 (1,2,3,4)
 I    Reference    Reference
 II 2.043 1.203–3.469 0.008 2.013 1.173–3.453 0.011
 III 2.629 1.91–3.618 < 0.001 2.199 1.565–3.089 < 0.001
 IV 3.642 0.889–14.918 0.072 2.281 0.545–9.537 0.259
Examined nodes 0.982 0.971–0.994 0.003 0.986 0.974–0.998 0.019
PLNN
 1    Reference    Reference
 2 2.181 1.485–3.205 < 0.001 3.490 0.449–27.134 0.232
LNR
 1    Reference    Reference
 2 2.132 1.458–3.116 < 0.001 0.152 0.015–1.517 0.108
LODDS
 1    Reference    Reference
 2 2.178 1.509–3.142 < 0.001 3.164 0.991–10.106 0.052
Histology grade
 I    Reference    Reference
 II 0.604 0.111–3.301 0.561 0.589 0.107–3.244 0.543
 III 3.743 0.922–15.205 0.065 2.250 0.547–9.252 0.261
 IV 3.642 0.889–14.918 0.072 2.281 0.545–9.537 0.259
 unknow 2.843 0.694–11.653 0.147 1.883 0.453–7.822 0.384
Peritoneal Cytology
 negative    Reference    Reference
 positive 2.617 1.85–3.701 < 0.001 1.395 0.959–2.03 0.081
 unknow 2.047 1.493–2.807 < 0.001 1.593 1.14–2.227 0.006