Prognostic factors for intermediate- or high-risk neuroblastomas in children in China

Abstract

Abstract Background Evidence regarding the characteristics and prognosis of neuroblastoma (NBL) in China is limited. We aimed to investigate the characteristics and prognosis of intermediate- or high-risk NBL in children in China. Methods We included 147 patients with intermediate- or high-risk NBL evaluated from January 2006 to March 2015. The patients were aged 1 month to 15.5 years, 66% of them were boys, and 117 (79.6%) were diagnosed with high-risk NBL. Results After a median follow-up of 32.5 months, 80 (45.6%) patients survived, with a median survival time of 48 months (95% confidence interval [CI]: 36.41–59.59). High-risk patients (hazard ratio [HR]: 12.467; 95% CI: 11.029–12.951), partial response (PR) (HR: 1.200; 95% CI: 1.475–2.509) or progression disease (PD) (HR: 1.924; 95% CI: 1.623–3.012) after induction chemotherapy, and intracranial metastasis (HR: 3.057; 95% CI: 0.941–4.892) were independent risk factors for survival (p < 0.05) and postrelapse survival (p < 0.05). NBL relapse, male sex, and PR or PD after induction chemotherapy were risk factors for event-free survival (p < 0.05). Conclusions In addition to previously established independent risk factors, such as age, risk group, and relapse, efficacy of induction chemotherapy and intracranial metastasis play significant roles in the prognosis of NBL.