title: Distinct characteristics and new prognostic scoring system for Chinese patients with Waldenström macroglobulinemia.
abstract: BACKGROUND
  Waldenström macroglobulinemia (WM) is an uncommon lymphoid malignancy. The characteristics and prognosis of WM have never been systematically studied in the East.
  
  
  METHODS
  We analyzed the clinical characteristics and the prognostic factors of 90 Chinese WM patients, and compared them with the Western reports.
  
  
  RESULTS
  The median age was 62 years old with a male-to-female ratio of 3.74. The most common symptoms at diagnosis were fatigue (77.8%) and bleeding (20%), while only 6 patients (6.7%) were asymptomatic. In the univariate analysis, age >62 years, thrombocytopenia, leucopenia, cytopenias ≥ 2, and high risk on the international prognostic scoring system for WM were the adverse risk factors, but only age >62 years and ≥ 2 cytopenias were the independent prognostic factors in the multivariate analysis. Using age <62 years and ≥ 2 cytopenias, three significantly different prognostic groups could been distinguished, with 5-year overall survival of 71.6%, 48.6%, and 17.0% (P < 0.001).
  
  
  CONCLUSIONS
  Distinct characteristics exist in WM in China compared to the West and we describe a new simple prognostic model for newly diagnosed WM patients.
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Shuhua
authors.initials: S
authors.lastname: Yi
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China. Department of Hematology, Tianjin First Center Hospital, Tianjin 300192, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Cui
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Zengjun
authors.initials: Z
authors.lastname: Li
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Gang
authors.initials: G
authors.lastname: An
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Junyuan
authors.initials: J
authors.lastname: Qi
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Dehui
authors.initials: D
authors.lastname: Zou
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Peihong
authors.initials: P
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China; Division of Cellular and Molecular Biology, Toronto General Hospital Research Institute, Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto M5G2C4, Canada.
authors.forename: Huishu
authors.initials: H
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Jianxiang
authors.initials: J
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Chang
authors.affiliation: State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China. Email: drqiu99@medmail.com.cn.
authors.forename: Lugui
authors.initials: L
authors.lastname: Qiu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012307:Risk Factors; D008258:Waldenstrom Macroglobulinemia / Q000175:diagnosis* / Q000401:mortality