Table 2.

Univariate and multivariate linear regression analysis of CD34+ cell recovery

Univariate analysisMultivariate analysis*
Referencer2Regression coefficient (95% CI)Pr2Regression coefficient (95% CI)P
Transit time NA 0.038 −0.25† .001 0.121 −0.26 >.001 
(−0.39 to −0.11) (−0.41 to −0.12) 
Initial WCC NA 0.032 −0.03 .002 0.121 −0.04 >.001 
(−0.05 to −0.01) (−0.06 to −0.02) 
Initial volume NA 0 0 .664 — N/A — 
(−0.01 to 0.012) 
Product type HPC-A 0.020 13.36 .013 — N/A — 
(2.85 to 23.89) 
Manipulation Plasma reduction/none 0.050 −23.07 <.001 0.121 −18.5 .001 
(−34.42 to −11.72) (−29.80 to −7.20) 
Univariate analysisMultivariate analysis*
Referencer2Regression coefficient (95% CI)Pr2Regression coefficient (95% CI)P
Transit time NA 0.038 −0.25† .001 0.121 −0.26 >.001 
(−0.39 to −0.11) (−0.41 to −0.12) 
Initial WCC NA 0.032 −0.03 .002 0.121 −0.04 >.001 
(−0.05 to −0.01) (−0.06 to −0.02) 
Initial volume NA 0 0 .664 — N/A — 
(−0.01 to 0.012) 
Product type HPC-A 0.020 13.36 .013 — N/A — 
(2.85 to 23.89) 
Manipulation Plasma reduction/none 0.050 −23.07 <.001 0.121 −18.5 .001 
(−34.42 to −11.72) (−29.80 to −7.20) 

CI, confidence interval.

*

Variables included in original model: transit time, initial WCC, initial volume, product type, manipulation, processing center.

†

The predicted CD34+ recovery decreased by 0.25% for each additional hour of transit time.

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