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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Cancer. 2013 Mar 1;119(11):10.1002/cncr.28026. doi: 10.1002/cncr.28026

Table 3.

Multivariable Cox Proportional Regression Model (ALC as a categorical variable)

Variable Event-free survival Overall survival
Hazard Ratio (95% CI) P-value Hazard Ratio (95% CI) P-value
ALC (< 500 cells/μl vs. ≥ 500 cells/μl) 1.04 (.44, 2.42) .930 1.62 (.57, 4.56) .362
Age at diagnosis (1 to 9 vs. ≥ 10 years) .90 (.49, 1.66) .736 .30 (.13, .70) .005
Leukocyte count at diagnosis (< 50 vs. ≥ 50 × 103/μL) 1.39 (.71, 2.70) .334 1.00 (.41, 2.50) .996
Lineage (B vs. T) .80 (.39, 1.65) .548 .90 (.33, 2.45) .836
Initial risk group (low vs. standard/high) .30 (.14, .66) .003 .70 (.24, 2.01) .505
MRD (Negative vs. Positive) .30 (.17, .53) < .001 .22 (.10, .46) < .001

ALC, absolute lymphocyte count; MRD, minimal residual disease