Prognostic significance of serum beta-2 microglobulin in patients with non-hodgkin lymphoma

Li Wu, Tong Wang*, Wei Gui, Hualiang Lin, Kaipeng Xie, Hui Wang, Tao Gao, Xiuxiu Zhang, Lei Liu, Ting Han, Yuan Tian, Lifang Hou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Background and Objective: Elevated serum beta-2 microglobulin (β2-M) has previously been reported in non-Hodgkin lymphoma (NHL) patients. This study examined the association between serum β2-M and the prognosis of NHL and analyzed its predictive value. Method: A total of 287 NHL patients from Taiyuan, Shanxi, China, participated in a prospective cohort study between 2008 and 2011. Overall survival (OS) was compared between NHL patients with high and normal β2-M levels using the log-rank test. Three standard Cox regression models including the International Prognostic Index (IPI) score, β2-M or IPI score + β2-M as independent variables were constructed. The time-dependent receiver operating characteristic curves method and C index were used to examine the tendency of the models' predictive accuracy over time. Results: NHL patients with elevated β2-M values had worse OS (p < 0.001) and higher mortality risk (HR = 1.93, 95% CI 1.37-2.77, p < 0.001) than patients with normal β2-M values. There were statistically significant differences between the C indexes for the models with IPI + β2-M, IPI or β2-M alone (p < 0.001). Conclusion: Our results demonstrated an association between serum β2-M and NHL prognosis. Combining β2-M with IPI may help to improve the prognostic accuracy of NHL.

Original languageEnglish (US)
Pages (from-to)40-47
Number of pages8
JournalOncology (Switzerland)
Volume87
Issue number1
DOIs
StatePublished - Jul 2014

Keywords

  • Beta-2 microglobulin
  • International Prognostic Index
  • Non-Hodgkin lymphoma
  • Receiver operating characteristic curves

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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