|
Influencing factors
|
|
What the research study involves (e.g., survey, drug testing for research)
|
69
|
21
|
68
|
23
|
0.96
|
(0.86, 1.06)
|
|
How much time is required
|
67
|
23
|
58
|
33
|
0.91
|
(0.79, 1.03)
|
|
How often they have to come in for visits
|
57
|
33
|
56
|
35
|
0.90
|
(0.78, 1.05)
|
|
How far they have to travel to participate (i.e., nearby vs. out of town)
|
58
|
32
|
67
|
24
|
1.01
|
(0.90, 1.13)
|
|
Privacy of the research office
|
58
|
32
|
73
|
18
|
1.10
|
(0.99, 1.20)
|
|
Why their information is being collected and what it will be used for
|
53
|
37
|
67
|
24
|
1.12*
|
(1.00, 1.26)
|
|
Whether their information will be kept confidential
|
63
|
27
|
80
|
11
|
1.07
|
(0.99, 1.16)
|
|
Whether the staff doing the research is friendly and trustworthyc
|
62
|
28
|
82
|
9
|
–
|
–
|
|
Whether the research institution or university is respected
|
39
|
51
|
51
|
40
|
1.25*
|
(1.08, 1.43)
|
|
Whether they can skip questions of parts of the study that make them uncomfortable
|
51
|
39
|
61
|
30
|
1.04
|
(0.91, 1.19)
|
|
How much money they will receive
|
64
|
26
|
75
|
16
|
1.01
|
(0.92, 1.11)
|
|
How much the project will benefit them overall
|
58
|
32
|
68
|
23
|
0.93
|
(0.82, 1.05)
|
|
Whether their appointment times will interfere with their work schedule
|
37
|
53
|
42
|
49
|
1.07
|
(0.88, 1.30)
|
|
Whether they have childcare so that they can attend their appointments
|
41
|
49
|
51
|
40
|
1.08
|
(0.91, 1.28)
|
|
How their friends, family, or partner feels about them participating
|
38
|
52
|
46
|
45
|
1.09
|
(0.90, 1.31)
|
|
Motivations
|
|
Financial incentive (i.e., money or gift card given for participation
|
79
|
11
|
81
|
10
|
0.97
|
(0.91, 1.04)
|
|
They believe in the mission of the research and want to contribute
|
61
|
29
|
64
|
27
|
0.93
|
(0.82, 1.06)
|
|
Their friends, family, or partner participates
|
63
|
27
|
67
|
24
|
0.93
|
(0.82, 1.04)
|
|
They want to tell their story
|
49
|
41
|
54
|
37
|
1.03
|
(0.88, 1.20)
|
|
They know someone on the research team and want to help them out
|
27
|
63
|
37
|
54
|
1.00
|
(0.79, 1.28)
|
|
They want to learn about the topic
|
43
|
47
|
57
|
34
|
1.05
|
(0.90, 1.23)
|
|
They would want to get free testing (for example, rapid tests for HIV & Hepatitis C) if it was offered as part of the study
|
55
|
35
|
78
|
13
|
1.08
|
(0.99, 1.18)
|
|
They would want to be linked with resources and/or follow-up testing if it was offered as part of the study
|
55
|
35
|
73
|
18
|
1.09
|
(0.99, 1.21)
|
|
They would want to try a new treatment if it was offered as part of the study
|
59
|
31
|
76
|
15
|
1.03
|
(0.93, 1.13)
|
|
Their friends, family, or partner pressures them to participate so that they can share the financial incentive
|
34
|
56
|
32
|
59
|
0.88
|
(0.69, 1.13)
|
|
Barriers
|
|
Not being able to get in touch with participants because their contact information changed
|
72
|
18
|
80
|
11
|
1.00
|
(0.93, 1.08)
|
|
Not being able to get in touch with participants because they gave false contact information when they started the study
|
51
|
39
|
61
|
30
|
0.99
|
(0.87, 1.14)
|
|
They may have trouble getting transportation for their appointments
|
68
|
22
|
71
|
20
|
0.99
|
(0.89, 1.09)
|
|
They may have trouble being able to show up at a specific appointment time
|
62
|
28
|
72
|
19
|
1.05
|
(0.95, 1.16)
|
|
They may have trouble getting to their appointment because of their work schedule
|
44
|
46
|
46
|
45
|
1.04
|
(0.89, 1.21)
|
|
They may have trouble finding childcare so that they can go to their appointment
|
47
|
43
|
49
|
42
|
0.94
|
(0.79, 1.12)
|
|
They may have concerns about confidentiality and privacy
|
43
|
47
|
60
|
31
|
1.09
|
(0.95, 1.26)
|
|
They may be afraid that the staff would judge them if they are still using drugs
|
38
|
52
|
48
|
43
|
1.09
|
(0.91, 1.31)
|
|
They may have stopped using drugs and no longer think the study is relevant to them
|
40
|
50
|
56
|
35
|
1.01
|
(0.86, 1.19)
|
|
They are in a drug treatment or recovery facility and are unable to be contacted by research staff
|
49
|
41
|
60
|
31
|
1.09
|
(0.96, 1.25)
|
|
Their friends, family, or partner may want them to stop participating
|
29
|
61
|
28
|
63
|
0.94
|
(0.71, 1.24)
|
