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Table 1 Association of polySia-NCAM and NCAM expression of untreated primary neuroblastomas with clinical variables.

From: Absence of polysialylated NCAM is an unfavorable prognostic phenotype for advanced stage neuroblastoma

Variable PolySia-NCAM-positive (17) PolySia-NCAM-negative (14) P value NCAM positive (20) NCAM negative (11) P value
MEAN AGE (31) 2.9 ± 3.3 4.6 ± 5.0 0.258 3.4 ± 3.9 4.1 ± 4.7 0.683
AGE (31)    0.613    0.890
< 1.0 year (8) 5 3   5 3  
> 1.0 year (23) 12 11   15 8  
    0.465    0.939
< 1.5 yrs (11) 7 4   7 4  
> 1.5 yrs (20) 10 10   13 7  
CLINICAL STAGE (31)    0.047    0.053
LD, extirpation (7) 1 6   2 5  
LD with RLNI (4) 3 1   3 1  
Distant metastases (19) 13 6   15 4  
INSS 4S (1) 0 1    1  
  1. Number of patients in each variable group is shown in parenthesis. P-values are measured for differences between categorical variables (polySia-NCAM or NCAM expression status). Abbreviations: LD = local disease; RLNI = regional lymph node involvement; BM = bone marrow; INSS = International Neuroblastoma Staging System