Table 5.

Multivariate Analysis of Grade 2-4 Maximum Skeletal Pain on Day 2 After BM Donation

Variable	n	OR	Lower	Upper	p-value
Donor race					0.001
Male					0.008
Non-Hispanic white	1220	1.00
Hispanic, all races	146	0.75	0.48	1.18	0.213
Non-Hispanic black	71	1.91	1.14	3.20	0.014
Non-Hispanic Asian/non-     Hispanic Pacific Islander	86	0.61	0.34	1.10	0.100
Non-Hispanic other, unknown	106	0.63	0.37	1.08	0.094
Female					0.136
Non-Hispanic white	702	1.00
Hispanic, all races	156	0.81	0.54	1.23	0.323
Non-Hispanic black	94	0.57	0.34	0.95	0.030
Non-Hispanic Asian/non-   Hispanic Pacific Islander	58	1.04	0.57	1.92	0.892
Non-Hispanic other, unknown	72	1.29	0.77	2.18	0.333
Median household income in the donor's census block group, 2012a,b					0.689
0-25,000	78	1.00
25,001-50,000	722	0.68	0.40	1.16	0.160
50,001-100,000	1051	0.69	0.41	1.16	0.160
>100,000	281	0.66	0.37	1.17	0.154
Collection center size					0.338
≥24 (≥1 every 2 months)	2138	1.00
<24 (<1 every 2 months)	265	1.25	0.79	1.95	0.338
Neutrophils at baseline (×109/L)
<3.2	650	1.00
>3.2	2061	1.38	1.13	1.70	0.002

^aDonors from the centers who provided only non-residential zip codes (e.g. work, university or donor center zip codes) were excluded from the SES analyses.

^bIf the census block group could not be located from reported street address, median household income from donor’s zip code was used instead.

Abbreviations: BM – bone marrow; OR – odds ratio.