Ontology highlight
ABSTRACT: Background
Primary tumors located in the right and left side have distinctive prognoses, but the details have not been fully identified in non-small cell lung cancer (NSCLC). This study investigated the impact of primary tumor side on long-term survival in NSCLC patients.Methods
Data of 90 407 patients from the Surveillance, Epidemiology, and End Results (SEER) Program were analyzed. To avoid bias between groups, we used innovative propensity score matching (PSM) analysis.Results
There was no significant distinction in overall survival (OS) between right (n = 53 496) and left (n = 36 911) side tumors (hazard ratio [HR] 0.993, 95% confidence interval [CI] 0.9756-1.011; P = 0.432). Left side was associated with superior five-year cancer-specific survival (CSS) compare
SUBMITTER: Jia B
PROVIDER: S-EPMC6397910 | biostudies-literature | 2019 Mar
REPOSITORIES: biostudies-literature