Table 4. Influencing factors associated with good mobilization among the healthy donors.

		Good mobilization	The other	P value (univariate)	P value (multivariate)
Sex	Male	10	13	0.29
	Female	3	10
Age at PBSCH	<45 years	8	4	0.01	0.01
	>45 years	5	19
Body weight	<60 kg	7	10	0.73
	>60 kg	6	13
Date of PBSCH	Until June 2011	3	12	0.16
	Since June 2011	10	11
PBSCH modality	Spectra Optia	4	5	0.70
	COBE Spectra	9	17
Course of PBSCH
	First course	13	23	1
	Second course	0	0
PBSCH days	Day 1	6	14	0.37
	Day 2	7	7
	Day 3	0	2
WBC count	<40,000/µL	3	10	0.28
	>40,000/µL	10	12
HPC count	<44/µL	4	16	0.01	0.03
	>44/µL	9	5
Platelet count	<200,000/µL	8	13	1
	>200,000/µL	5	9

Collection of more than 2.0 × 10⁶/kg of CD34+ cells in a single apheresis was defined as good mobilization; PBSCH, peripheral blood stem cell harvest; WBC, white blood cell; HPC, hematopoietic progenitor cell.