title: [Multivariate analysis of prognostic factors in Philadelphia chromosome-positive chronic granulocytic leukemia].
abstract: OBJECTIVE
  To investigate the prognostic factors of the patients with Philadelphia chromosome-positive chronic granulocytic leukemia (CGL).
  
  
  METHODS
  Clinical and laboratory parameters of 209 CGL patients at diagnosis were analyzed in relation to survival. COX regression analysis were used to identify the statistically significant prognostic factors.
  
  
  RESULTS
  The median survival time was 57 (3 - 179) months, and 5 year survival rate was 48%. From the COX regression model, the four main poor prognostic factors were as follows: percentage of bone marrow blasts (>or= 0.04), percentage of peripheral blood blasts and promyelocytes and presence of erythroid precursors in peripheral blood. According to the prognostic scores, three groups of CGL were identified. The low-risk group was with a median survival time of 76 months, the intermediate-risk group with 56 months, and the high-risk group with 31.5 months (P < 0.01). The 5 year survival rate was 70.42%, 46.30% and 18.18% (P < 0.01), respectively.
  
  
  CONCLUSIONS
  A prognostic scoring system suitable for Chinese CGL patients was proposed.
authors.affiliation: Institute of Hematology and Blood Diseases Hospital, CAMS and PUMC, Tianjin 300020, China.
authors.forename: C
authors.initials: C
authors.lastname: Hao
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: Q
authors.initials: Q
authors.lastname: Li
authors.forename: B
authors.initials: B
authors.lastname: Liu
authors.forename: L
authors.initials: L
authors.lastname: Qian
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000175:diagnosis / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D015996:Survival Rate; D055815:Young Adult