Table 1. Baseline demographic, risk behavior, serologic testing, vaccination and willingness to participate in Control and Retaining Group.
| Control group | Retaining group | p-value | |||
|---|---|---|---|---|---|
| |
n |
% |
n |
% |
|
|
Demographics | |||||
| Overall |
121 |
100 |
130 |
100 |
|
| Gender | |||||
| Female |
88 |
72.7 |
97 |
74.6 |
0.73 |
| Transgender |
33 |
27.3 |
33 |
25.4 |
|
| Age | |||||
| 18–30 |
78 |
64.5 |
71 |
54.6 |
0.26 |
| > 31–45 |
35 |
28.9 |
50 |
38.5 |
|
| > 45 |
8 |
6.6 |
9 |
6.9 |
|
| Origin | |||||
| Spain |
7 |
5.8 |
14 |
10.8 |
0.08* |
| Other European Country |
7 |
5.8 |
19 |
14.6 |
|
| Latin America |
70 |
58.3 |
62 |
47.7 |
|
| Africa |
33 |
27.5 |
33 |
25.4 |
|
| Asia /Oceania |
3 |
2.5 |
2 |
1.5 |
|
| Education | |||||
| No studies Primary Secondary University |
9 33 69 10 |
7.4 27.3 57.0 8.3 |
14 55 54 7 |
10.8 42.3 41.5 5.4 |
0.04 |
| Sexual Behavior (ever) | |||||
| Heterosexual Homosexual Bisexual |
89 28 3 |
74.2 23.3 2.5 |
98 23 9 |
75.4 17.7 6.9 |
0.18* |
|
Risk Behaviors | |||||
| Injection drug use (ever) |
0 |
0 |
0 |
0 |
– |
| Non-injection drug use (ever) |
56 |
46.3 |
40 |
30.8 |
0.01 |
| Performs sex work in last 6months |
121 |
100 |
130 |
100 |
– |
| Performs sex work in last month |
121 |
100 |
130 |
100 |
– |
| Sex with a known HIV positive partner in last 6 mo |
5 |
4.1 |
2 |
1.5 |
0.03* |
| Sex with a known HIV positive partner in last month |
2 |
1.7 |
1 |
0.8 |
0.09* |
| Sex with an IDU partner in last 6 mo |
3 |
2.5 |
9 |
6.9 |
< 0.01* |
| Sex with an IDU partner in last month |
1 |
0.8 |
4 |
3.1 |
< 0.01* |
| Sex with a partner using other drugs in last 6 mo |
68 |
56.2 |
77 |
59.2 |
0.49 |
| Sex with a partner using other drugs in last month |
45 |
37.2 |
41 |
31.5 |
0.14 |
| Sex with a partner having multiple sexual partners in last 6 mo |
107 |
88.4 |
114 |
87.7 |
0.57 |
| Sex with a partner having multiple sexual partners in last month |
74 |
61.2 |
63 |
48.5 |
0.13 |
| UA/V sex with casual/steady partner in last 6 mo |
66 |
54.6 |
60 |
46.2 |
0.18 |
| UA/V sex with clients in last 6 mo |
5 |
4.1 |
6 |
4.6 |
0.85 |
| Self reported STI symptoms in last 6 mo |
5 |
4.7 |
6 |
4.7 |
0.99 |
|
Serologic Testing | |||||
| HIV ever tested: yes/no |
34 |
28.1 |
85 |
|
|
| HIV in past 6 mo tested: yes/no |
4 |
3.3 |
25 |
65.4 |
< 0.01 |
| Tested HIV positive |
4 |
3.3 |
0 |
19.2 |
< 0.01 |
| HCV ever tested: yes/no |
12 |
9.9 |
73 |
0 |
< 0.01 |
| HCV in past 6 mo tested: yes/no |
2 |
1.7 |
21 |
56.2 |
< 0.01 |
| Tested HCV positive |
1 |
0.8 |
4 |
16.2 |
< 0.01* |
| Siphilis ever tested: yes/no |
13 |
10.7 |
73 |
3.5 |
0.20* |
| Siphilis in past 6 mo tested: yes/no |
3 |
2.5 |
21 |
56.2 |
< 0.01* |
| Tested Siphilis positive |
16 |
13.9 |
19 |
16.2 |
< 0.01* |
| HBV (Anti-HBc) positive |
39 |
32.8 |
35 |
18.8 |
0.36 |
| HBV (HBs Ag) positive |
5 |
4.3 |
2 |
30.4 |
0.70 |
|
Vaccination |
|
|
|
1.7 |
0.45* |
| HBV vaccination ever vaccinated: yes/no |
35 |
34.0 |
34 |
|
|
|
Willingness to participate |
|
|
|
35.1 |
0.87 |
| Probably + definitely YES |
108 |
89.3 |
126 |
|
|
| Probably + definitely NOT | 13 | 10.7 | 4 | 96.9 | 0.02 |
*Fisher’s exact p-value