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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 5.

Factors associated with being talked to about participating in an HIV/AIDS clinical trial.

Unadjusted OR (95% CI) Adjusted OR
(95% CI)a
Race
  White ref Ref
  African-American 0.65 (0.52, 0.81)b 0.70 (0.55, 0.89)b
  Hispanic 0.65 (0.49, 0.85)b 0.69 (0.47, 1.02)c
  Mixed race or other race 0.75 (0.49, 1.14)d 0.79 (0.51, 1.22)d

Education
  Elementary school ref ref
  High school 1.18 (0.82, 1.71)d 1.18 (0.81, 1.73)d
  Some college or technical school 1.67 (1.15, 2.43)b 1.57 (1.06, 2.33)b
  College or graduate school 1.89 (1.29, 2.77)b 1.68 (1.12, 2.51)b

First language
  English ref Ref
  Spanish 0.86 (0.66, 1.12)d 1.08 (0.71, 1.64)d
  Other 0.63 (0.30, 1.32)d 0.61 (0.28, 1.29)d

Last use of tobacco
  Never/more than a year ago ref Ref
  Within past year or past month 0.78 (0.64, 0.94)b 0.81 (0.65, 0.98)b

Age categories (years)
  Under 25 ref ref
  25–34 0.93 (0.52, 1.67)d 0.89 (0.49, 1.61)d
  35–44 0.72 (0.42, 1.26)d 0.67 (0.38, 1.18)d
  45–54 0.74 (0.43, 1.27)d 0.67 (0.39, 1.17)d
  ≥55 0.89 (0.51, 1.58)d 0.78 (0.43, 1.38)d

Sex
  Male ref ref
  Female 1.03 (0.84, 1.27)d 1.19 (0.95, 1.49)d

Alcohol use (intermittent)
  Never/once a month ref
  >2–3 times per month 1.21 (0.99 to 1.47)c

Alcohol use (binge)
  Never/once a month ref
  >2–3 times per month 0.86 (0.67 to 1.10)d

Marijuana use
  Never/more than 1 year ago ref
  Within past month/year 1.03 (0.83 to 1.28)d

Other drug use (cocaine, heroin,
amphetamines)
  Never/more than 1 year ago ref
  Within past month/year 0.97 (0.72 to 1.29)d
a

Adjusted ORs are from a multivariable model that includes age, education, sex, race, first language and tobacco use. The multivariable (adjusted) analysis does not include alcohol and drug use.

b

p-value<0.05.

c

0.05< p-value <0.1.

d

p-value ≥0.1