Table 4.
Multivariate Analysis of Grade 2-4 Maximum MTC Grade at 1 Week After BM Donation
| Variable | n | OR | Lower | Upper | p-value |
|---|---|---|---|---|---|
| Median household income in the donor's census block group, 2012a,b |
0.599 | ||||
| 0-25,000 | 70 | 1.00 | |||
| 25,001-50,000 | 648 | 0.51 | 0.20 | 1.30 | 0.159 |
| 50,001-100,000 | 956 | 0.66 | 0.26 | 1.66 | 0.380 |
| >100,000 | 254 | 0.60 | 0.22 | 1.68 | 0.331 |
| Donor race | 0.813 | ||||
| Non-Hispanic white | 1720 | 1.00 | |||
| Hispanic, all races | 272 | 0.87 | 0.49 | 1.55 | 0.634 |
| Non-Hispanic black | 137 | 0.71 | 0.33 | 1.53 | 0.383 |
| Non-Hispanic Asian/non- Hispanic Pacific Islander |
121 | 0.68 | 0.28 | 1.66 | 0.395 |
| Non-Hispanic other, unknown | 153 | 0.86 | 0.41 | 1.77 | 0.675 |
| Collection center size | 0.004 | ||||
| ≥24 (≥1 every 2 months) | 2138 | 1.00 | |||
| <24 (<1 every 2 months) | 265 | 2.09 | 1.26 | 3.46 | 0.004 |
| Sex | <0.001 | ||||
| Male | 1432 | 1.00 | |||
| Female | 971 | 2.28 | 1.62 | 3.22 | <0.001 |
| Age at donation | 0.020 | ||||
| 18 to 29 | 767 | 1.00 | |||
| 30 to 39 | 783 | 1.62 | 1.02 | 2.56 | 0.040 |
| 40 to 49 | 633 | 2.05 | 1.29 | 3.25 | 0.002 |
| 50+ | 220 | 1.91 | 1.03 | 3.54 | 0.040 |
a
Donors 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.
b
If the census block group could not be located from reported street address, median household income from donor’s zip code was used instead.
Abbreviations: MTC – modified toxicity criteria; BM – bone marrow; OR – odds ratio.