title: Prognostic Value of CD11b Expression Level for Acute Myeloid Leukemia Patients: A Meta-Analysis.
abstract: BACKGROUND
  Study results on the prognostic value of CD11b for acute myeloid leukemia (AML) patients are inconsistent. An up-to-date meta-analysis was conducted to assess the prognostic value of CD11b expression level for AML patients.
  
  
  METHODS
  Electronic databases including PubMed, Embase, Cochrane Library, Web of Science and Chinese BioMedical Literature Database (CBM) were searched to identify studies that investigated the association between CD11b expression level and prognosis of AML patients. Pooled hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival (OS) and disease-free survival (DFS) and pooled odds ratio (OR) with 95% CI for complete remission rate (CRR) were calculated using Revman 5.3 and Stata 11.0.
  
  
  RESULTS
  13 total studies with 2619 patients were included in this meta-analysis. Results of the meta-analysis showed that CD11b positivity was associated with lower CRR (OR = 0.44; 95% CI, 0.25-0.79; p = 0.006) and shorter OS (HR = 0.66; 95% CI, 0.55-0.80; p < 0.0001), but did not affect DFS (HR = 0.67; 95% CI, 0.31-1.48; p = 0.32). Subgroup analysis by ethnicity, cut-off value for CD11b positivity, treatment, subtype and sample preparation method showed no significant interaction between these factors with the prognostic value of CD11b expression level for AML patients. Sensitivity analysis yielded consistent results with the main meta-analysis.
  
  
  CONCLUSIONS
  CD11b positivity could predict a poor prognosis for AML patients. Thus, CD11b expression level might be considered a prognostic biomarker for AML patients.
authors: Department of Hematology, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, People's Republic of China.
authors: Shuangnian
authors: S
authors: Xu
authors: Department of Hematology, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, People's Republic of China.
authors: Xi
authors: X
authors: Li
authors: Department of Hematology, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, People's Republic of China.
authors: Jianmin
authors: J
authors: Zhang
authors: Department of Hematology, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, People's Republic of China.
authors: Jieping
authors: J
authors: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000378:metabolism*; D039481:CD11b Antigen / Q000378:metabolism*; D002648:Child; D002675:Child, Preschool; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007223:Infant; D015470:Leukemia, Myeloid, Acute / Q000378:metabolism / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D011379:Prognosis; D012074:Remission Induction; D055815:Young Adult
chemical_list: D014408:Biomarkers, Tumor; D039481:CD11b Antigen; C509295:ITGAM protein, human