Baseline functioning scales of quality of life (EORTC QLQ-C30) as a predictor of overall survival in patients with lung cancer: a meta-analysis
摘要
Studies have shown inconsistent associations between quality of life (QoL) and survival in patients with lung cancer (LC).
ObjectiveTo assess the association between baseline functioning scales from the EORTC QoL Questionnaire Core 30 (QLQ-C30) and overall survival in patients with LC by conducting a meta-analysis.
MethodsTwo independent authors searched PubMed and Embase databases using the following PECOS criteria: population (patients with pathological diagnosis of LC), exposure (poor health-related QoL, as measured by the functioning scales of EORTC QLQ-C30), comparator (better QoL), outcomes (overall survival), and study design (cohort studies).
ResultsSixteen studies with 9429 patients were identified. Compared to the highest scores, the lowest scores on the global QoL (hazard ratios [HR] 1.59; 95% confidence intervals [CI] 1.38–1.84), physical functioning (HR 1.58; 95% CI 1.24–2.03), role functioning (HR 1.43; 95% CI 1.19–1.73), and emotional functioning (HR 1.29; 95% CI 1.05–1.60) scales significantly predicted poorer overall survival. A 10-point increase in the global QoL, physical functioning, and role functioning scales was associated with a reduced risk of mortality (HR 0.87; 95% CI 0.84–0.91, HR 0.88; 95% CI 0.85–0.92, and HR 0.93; 95% CI 0.87–0.99, respectively). However, 10–point increases in the emotional functioning (HR 0.97; 95% CI 0.92–1.01), cognitive functioning (HR 0.97; 95% CI 0.95–1.00), and social functioning (HR 0.95; 95% CI 0.90–1.01) scales did not significantly predict overall survival.
ConclusionsBaseline QoL, specifically lower scores on the global QoL, physical functioning, and role functioning scales of the EORTC QLQ-C30, significantly predicts poorer overall survival in patients with LC.