Research Article

Willingness to Participate in Hypothetical HIV Vaccine Trial and Associated Factors among People Who Inject Drugs in Dar es Salaam, Tanzania

Table 4

Willingness to participate in HIV vaccine trials and its associated factors.

RespondentsWilling to participate 294 (76.2%)

FactorsNumber (%) willingOdds ratio (95% CI)
UnadjustedAdjusted
Age (groups)
 18-35131 (71.6)1
 36-58163 (80.3)1.6 (1.01, 2.6), 0.89 (.45, 1.748),
Person living with
 Parents105 (78.4)1
 Significant others189 (75.0)0.8 (0.5, 1.4)
Level of education
 Primary or lower202 (74.0)1.5 (0.9, 2.7), 0.59 (0.26, 1.35),
 Secondary or higher92 (81.4)1
Knowledge about HIV transmission
 Knowledgeable185 (76.4)1.0 (.6, 1.6)
 Not knowledge109 (75.7)1
Awareness of HIV vaccine trials
 Yes211 (75.4)1.2 (0.7, 2.0)
 No83 (78.3)1
Shared syringe/needle with another person
 Yes117 (80.1)1
 No177 (74.1)0.7 (0.4, 1.2), 1.779 (0.89, 3.57),
Number of sexual partners
 None or one36 (73.5)1
 Two or more258 (76.6)1.2 (0.6, 2.3)
Had sexual intercourse with nonregular partner in the last 6 months
 Yes135 (73.4%)1
 No159 (78.7%)0.745 (0.47, 1.19),
If the partner used condoms in the last sexual intercourse
 Yes59 (66.3%)1
 No75 (79.8%)0.49 (0.26, 0.97), 1.81 (0.91, 3.58),
Sexual partners were injecting drugs
 Yes44 (69.8%)1
 No103 (75.7%)0.742 (0.38, 1.44),
If partners exchanged sex with other commodities
 Yes123 (74.1%)1
 No171 (77.7%)0.82 (0.51, 1.31),