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. Author manuscript; available in PMC: 2024 Jul 29.
Published in final edited form as: Transfusion. 2023 Aug 29;63(10):1872–1884. doi: 10.1111/trf.17515

Table 2.

Demographic and Social Characteristics of Eligible and Ineligible Respondents

Variable Category Total Eligible Ineligible p-value*

N=1781 (%) N=1593 (%) N=188 (%)

Site Atlanta 179 (100) 169 (94.4) 10 (5.6) <0.001
Los Angeles 345 (100) 327 (94.8) 18 (5.2)
Memphis 59 (100) 53 (89.8) 6 (10.2)
Miami 131 (100) 117 (89.3) 14 (10.7)
New Orleans/Baton Rouge 108 (100) 94 (87.0) 14 (13.0)
Orlando 193 (100) 164 (85.0) 29 (15.0)
San Francisco 289 (100) 234 (81.0) 55 (19.0)
Washington, DC 477 (100) 435 (91.2) 42 (8.8)

Gender Identity Male 1745 (98.0) 1571 (98.6) 174 (92.6) <0.001
Female 1 (0.1) 0 1 (0.5)
Transgender 23 (1.3) 11 (0.7) 12 (6.4)
Prefer not to answer§ 12 (0.7) 11 (0.7) 1 (0.5)

Age <18§ 1 (0.1) 0 1 (0.5) 0.724
18–24 250 (14.0) 224 (14.1) 26 (13.8)
25–29 552 (31.0) 506 (31.8) 46 (24.5)
30–34 527 (29.6) 483 (30.3) 44 (22.4)
35–39 413 (23.2) 380 (23.9) 33 (17.6)
40+§ 38 (2.1) 0 38 (20.2)

Race White/Caucasian 1272 (71.4) 1139 (71.5) 133 (70.7) 0.015
Black/African American 120 (6.7) 99 (6.2) 21 (11.2)
Asian/Pacific Islander 127 (7.1) 120 (7.5) 7 (3.7)
Native American 11 (0.6) 8 (0.5) 3(1.6)
More than 1 race 149 (8.4) 138 (8.7) 11 (5.9)
Other 91 (5.1) 80 (5.0) 11 (5.9)
Prefer not to answer§ 11 (0.6) 9 (0.6) 2 (1.1)

Ethnicity Hispanic 336 (18.9) 298 (18.7) 38 (20.2) 0.621
Non-Hispanic 1442 (81.0) 1293 (81.2) 149 (79.3)
Prefer not to answer§ 3 (0.2) 2 (0.1) 1 (0.5)

Marital Status Married/Domestic partner 461 (25.9) 409 (25.7) 52 (27.7) 0.859
Separated/Divorced 66 (3.7) 58 (3.6) 8 (4.3)
Widowed** 3 (0.2) 1 (0.1) 2 (1.1)
Never married 1204 (67.6) 1080 (67.8) 124 (66.0)
Other 45 (2.5) 43 (2.7) 2 (1.1)
Prefer not to answer§ 2 (0.1) 2 (0.1) 0

Education Never been to school†† 0 0 0 0.029
Completed grade school†† 2 (0.1) 1 (0.1) 1 (0.5)
Some high school†† 3 (0.1) 2 (0.1) 1 (0.5)
Completed high school 49 (2.8) 43 (2.7) 6 (3.2)
Some college/tech school 272 (15.3) 231 (14.5) 41 (21.8)
Completed college 832 (46.7) 755 (47.4) 77 (41.0)
Completed graduate school 621 (34.9) 561 (35.2) 60 (31.9)
Prefer not to answer§ 2 (0.1) 0 2 (1.1)

Employment Status Full-time employment 1355 (76.1) 1234 (77.5) 121 (64.4) <0.001
Part-time employment 147 (8.3) 124 (7.8) 23 (12.2)
Unemployed 111 (6.2) 87 (5.5) 24 (12.8)
Currently in school 151 (8.5) 136 (8.5) 15 (8.0)
Prefer not to answer§ 17 (1.0) 12 (0.8) 5 (2.7)

Annual Income $12,760 or less 69 (3.9) 53 (3.3) 16 (8.5) 0.032
$12,761 – $19,999 41 (2.3) 35 (2.2) 6 (3.2)
$20,000 – $29,999 80 (4.5) 75 (4.7) 5 (2.7)
$30,000 – $39,999 121 (6.8) 106 (6.7) 15 (8.0)
$40,000 – $49,999 136 (7.6) 124 (7.8) 12 (6.4)
$50,000 – $74,999 305 (17.1) 271 (17.0) 34 (18.1)
$75,000 – $99,999 244 (13.7) 223 (14.0) 21 (11.2)
$100,000 or more 698 (39.2) 630 (39.5) 68 (36.2)
Don’t know 43 (2.4) 36 (2.3) 7 (3.7)
Prefer not to answer 44 (2.5) 40 (2.5) 4 (2.1)

Last Donation Never donated blood 666 (37.4) 599 (37.6) 67 (35.6) 0.971
Over 5 years ago 779 (43.7) 696 (43.7) 83 (44.1)
1–5 years ago 240 (13.5) 214 (13.4) 26 (13.8)
3–12 months ago 50 (2.8) 47 (3.0) 3 (1.6)
Within past 3 months‡‡ 13 (0.7) 10 (0.6) 3 (1.6)
Prefer not to answer when§ 12 (0.7) 10 (0.6) 2 (1.1)
Prefer not to answer if ever§ 21 (1.2) 17 (1.1) 4 (2.1)

Note: Two San Francisco participants discontinued the eligibility survey. They are included in the “Prefer not to answer” category for Education, Employment Status, and Annual Income and in the “Prefer not to answer if ever” for Last Donation In the “Ineligible” column.

*

Chi-square statistic comparing eligible respondents to ineligible respondents

Cell entries are row N and row percentage, all others are column N and column percentage

Combined into “Other” category for calculation of chi-square statistic

§

Excluded from calculation of chi-square statistic

Combined with “Other” category for calculation of chi-square statistic

**

Combined with “Separated/Divorced” category for calculation of chi-square statistic

††

Combined with “Completed high school” category for calculation of chi-square statistic

‡‡

Combined into “3–12 months ago” category for calculation of chi-square statistic