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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: HIV Clin Trials. 2014 Jan-Feb;15(1):14–26. doi: 10.1310/hct1501-14

Table 4.

Factors that influence HIV/AIDS clinical trial participation according to race, first language and level of education.

Race (N=1,993)§ Language (N=2,040) Education (N=2,121)
White

(N=677)
African-
American
(N=871)
Hispanic

(N=445)
p
value*
English

(N=1,748)
Spanish

(N=292)
p
value*
Elementary

(N=153)
High
School
(N=678)
Some
College/Technical
(N=672)
College/Graduate

(N=618)
p
value*
Reasons to be in study
  Help fight HIV/AIDS 582 (86%) 721 (83%) 320 (72%) <0.001 1,463 (84%) 204 (70%) <0.001 97 (63%) 538 (79%) 578 (86%) 519 (84%) <0.001
  Better Healthcare 221 (33%) 349 (40%) 215 (48%) <0.001 633 (36%) 166 (57%) <0.001 67 (44%) 236 (35%) 275 (41%) 251 (41%) 0.04
  Might get money 212(31%) 277 (32%) 102 (23%) 0.002 562 (32%) 55 (19%) <0.001 36 (24%) 209 (31%) 235 (35%) 151 (24%) <0.001
  Learn about HIV/AIDS 349 (52%) 509 (58%) 235 (53%) 0.012 951 (54%) 169 (58%) 0.3 84 (55%) 356 (53%) 395 (59%) 319 (52%) 0.04
  Get medications 211 (31%) 232 (27%) 116 (26%) 0.08 494 (28%) 91 (31%) 0.3 46 (30%) 166 (24%) 191 (28%) 203 (33%) 0.01
  Represent gender 120 (18%) 269 (31%) 116 (26%) <0.001 435 (25%) 90 (31%) 0.03 52 (34%) 168 (25%) 188 (28%) 125 (20%) <0.001
  Represent race 71 (10%) 311 (36%) 140 (31%) <0.001 429 (25%) 108 (37%) <0.001 52 (34%) 176 (26%) 190 (28%) 139 (22%) 0.01
  MD recommended 315 (47%) 281 (32%) 150 (34%) <0.001 667 (38%) 110 (38%) 0.9 57 (37%) 220 (32%) 271 (40%) 247 (40%) 0.01
  Family/friend recommendation 71 (10%) 113 (13%) 45 (10%) 0.2 197 (11%) 38 (13%) 0.4 25 (16%) 89 (13%) 70 (10%) 59 (10%) 0.04
Reasons to avoid study
  Not friendly to my race 27 (4%) 147 (17%) 44 (10%) <0.001 197 (11%) 26 (9%) 0.2 9 (6%) 78 (12%) 91 (14%) 55 (9%) 0.01
  Not friendly to my gender 31 (5%) 94 (11%) 30 (7%) <0.001 145 (8%) 18 (6%) 0.2 5 (3%) 50 (7%) 69 (10%) 43 (7%) 0.01
  Not friendly if I use drugs 30 (4%) 102 (12%) 26 (6%) <0.001 150 (9%) 17 (6%) 0.1 10 (7%) 63 (9%) 63 (9%) 37 (6%) 0.07
  Not friendly if I use alcohol 32 (5%) 74 (8%) 22 (5%) 0.004 122 (7%) 17 (6%) 0.5 9 (6%) 50 (7%) 53 (8%) 30 (5%) 0.1
  Worry of being hurt 147 (22%) 201 (23%) 99 (22%) 0.8 407 (23%) 60 (21%) 0.3 21 (14%) 142 (21%) 178 (26%) 139 (22%) 0.003
  Worry about placebo 163 (24%) 96 (11%) 65 (15%) <0.001 296 (17%) 41 (14%) 0.2 16 (10%) 57 (8%) 125 (19%) 156 (25%) <0.001
  Worry about confidentiality 99 (15%) 195 (22%) 80 (18%) <0.001 330 (19%) 53 (18%) 0.7 21 (14%) 110 (16%) 137 (20%) 135 (22%) 0.02
  Worry medications will not work/hurt me 226 (33%) 273 (31%) 127 (29%) 0.2 564 (32%) 86 (29%) 0.3 37 (24%) 174 (26%) 252 (38%) 208 (34%) <0.001
  Do not understand the studies 26 (4%) 91 (10%) 40 (9%) <0.001 132 (29%) 29 (10%) 0.2 10 (7%) 78 (12%) 57 (8%) 20 (3%) <0.001
  Do not have time 115 (17%) 126 (14%) 71 (16%) 0.4 275 (16%) 40 (14%) 0.4 18 (12%) 103 (15%) 87 (13%) 120 (19%) 0.01
  Do not want to be “guinea pig” 43 (6%) 133 (15%) 43 (10%) <0.001 211 (12%) 26 (9%) 0.1 18 (12%) 81 (12%) 88 (13%) 53 (9%) 0.07
*

Chi-Square Test.

§

Excluded individuals who responded other race (N=102), mixed race (N=23) or had no response (N=57).

Excluded individuals who responded other language (N=31) or had no response (N=104).

Excluded individuals who had no response (N=54).