Publication:

Neutrophil to lymphocyte ratio, platelet to lymphocyte ratio and one year survival of lung cancer in Sanglah hospital

Background Lung cancer is ranked third as the most common cancer in Indonesia. The one-year survival rate of advanced-stage non-small cell lung carcinoma (NSCLC) patient is quite low, that is 24.6%. Effective and inexpensive prognostic markers need to be further studied due to an increasing incidence of cancer. Inflammation plays an important role in tumorigenesis and research showed an association of NLR and PLR values with poor prognosis in patients with various solid tumors, but current cut off values still vary. This study wanted to determine the value of NLR, PLR and their relationship with the survival rate of advanced stage NSCLC patients at Sanglah hospital.

Methods A retrospective cohort study using the medical record of 96 advanced-stage NSCLC patients who underwent treatment since January 2018 in Sanglah hospital, was closely monitored for a year since diagnosed. Analysis was performed with ROC, Kaplan Meier analysis, log rank test, and time independent cox regression model.

Results The one-year survival rate of advanced stage NSCLC patient is 14.6%, with median survival 3.26 months. Cut off NLR> 3.37, median survival 2.66, p=0.00. Cut off PLR>178.55, median survival 3.26, p=0.35. Multivariate analysis showed that NLR, HR=2.75 and performance status, HR=1.78 were associated with survival.

Conclusions NLR with cut off >3.37 is associated with one-year survival rate of advanced-stage NSCLC patient. PLR did not have any significant association with one-year survival rate of advanced-stage NSCLC patient.