Research Article

Analysis of a Systemic Inflammatory Biomarker in Advanced Bile Tract Carcinoma Treated with Anti-PD-1 Therapy: Prognostic and Predictive Significance of Lung Immune Prognostic Index Score

Table 5

Univariate and multivariate analyses of factors associated with OS and PFS.
(a)

Patient characteristicsUnivariate analysisMultivariate analysis
OSHR (95% CI)HR (95% CI)

ECOG performance status
 0-11 [ref.]1 [ref.]
 ≥25.473 (2.099-14.266)0.0015.383 (2.058-14.081)0.001
Lines of immunotherapy
 <21 [ref.]1 [ref.]
 ≥21.678 (1.021-2.758)0.0411.523 (0.919-2.526)0.103
LIPI
 The good1 [ref.]1 [ref.]
 The intermediate/poor1.892 (1.085-3.299)0.0241.877 (1.076-3.275)0.027

(b)

Patient characteristicsUnivariate analysisMultivariate analysis
PFSHR HR

Lines of immunotherapy
 ≥21 [ref.]1 [ref.]
 <21.963 (1.247-3.091)0.0041.677 (1.055-2.665)0.029
ECOG performance status
 ≥21 [ref.]1 [ref.]
 0-12.558 (1.022-6.404)0.0452.348 (0.927-5.946)0.072
LIPI
 The good1 [ref.]1 [ref.]
 The intermediate/poor2.524 (1.540-4.137)<0.0012.301 (1.395-3.796)0.001

PFS: progression-free survival; OS: overall survival; LIPI: lung immune prognostic index; ECOG PS: Eastern Cooperative Oncology Group performance status scores.