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. 2013 Jul 17;13:93. doi: 10.1186/1471-2288-13-93

Table 3.

Comparison of seed and recruit sample sizes (and proportions for recruits), homophily and estimated population proportions between arms 1 and 2

 
Arm 1
 
 
Arm 2
 
 
Variable Seeds Recruits (observed proportion) Estimated population proportion (CI) Homophily Seeds Recruits (observed proportion) Estimated population proportion (CI) Homophily
Education
 
 
 
 
 
 
 
 
Graduate or in school
6
84 (0.43)
0.39 (0.32-0.45)
0.086
29
96 (0.36)
0.32 (0.26-0.37)
0.144
Dropped out or unsure
17
111 (0.57)
0.61 (0.55-0.68)
-0.061
89
168 (0.64)
0.69 (0.63-0.74)
-0.037
Income
 
 
 
 
 
 
 
 
Full/part-time work
5
36 (0.19)
0.17 (0.12-0.23)
0.093
8
39 (0.15)
0.15 (0.10-0.20)
0.026
Support
18
159 (0.82)
0.83 (0.77-0.88)
0.021
110
225 (0.85)
0.85 (0.80-0.90)
0.037
Housing
 
 
 
 
 
 
 
 
Private residence
11
106 (0.54)
0.52 (0.44-0.6)
0.326
54
160 (0.61)
0.64 (0.55-0.72)
0.482
Public residence
12
89 (0.46)
0.48 (0.4-0.56)
0.205
64
104 (0.40)
0.37 (0.29-0.45)
0.345
Gender
 
 
 
 
 
 
 
 
Male
12
109(0.56)
0.61 (0.54-0.67)
-0.011
53
143 (0.54)
0.55 (0.48-0.63)
0.104
Female
8
82(0.42)
0.38 (0.31-0.45)
0.153
64
119 (0.46)
0.45 (0.37-0.52)
0.11
Transgender
3
4 (0.02)
0.02 (0.004-0.03)
-1.0
1
2 (0.01)
0.004 (0.002-0.01)
-1.0
Ethnicity
 
 
 
 
 
 
 
 
Caucasian
5
62 (0.32)
0.32 (0.24-0.39)
0.113
10
57 (0.22)
0.28 (0.21-0.35)
0.096
Aboriginal
13
79 (0.41)
0.42 (0.32-0.51)
0.302
80
150 (0.57)
0.46 (0.38-0.55)
0.409
Metis
2
42(0.22)
0.19 (0.14-0.24)
0.102
24
47 (0.18)
0.20 (0.15-0.27)
0.013
Other and unsure
3
12(0.06)
0.074 (0.03-0.13)
0.1
4
10 (0.04)
0.06 (0.03-0.09)
-1.0
Solvent use
 
 
 
 
 
 
 
 
No
11
135 (0.70)
0.70 (0.64-0.75)
-0.024
64
147 (0.56)
0.58 (0.5-0.65)
0.238
Yes
12
60(0.31)
0.30 (0.25-0.36)
-0.083
54
117 (0.44)
0.43 (0.35-0.50)
0.224
IDU
 
 
 
 
 
 
 
 
No
8
100 (0.51)
0.56 (0.47-0.64)
0.28
53
136 (0.52)
0.50 (0.42-0.56)
0.187
Yes
15
95 (0.49)
0.44 (0.35-0.53)
0.345
65
128 (0.49)
0.5 (0.44-0.58)
0.072
Street-involved youth
 
 
 
 
 
 
 
 
No
18
161 (0.83)
0.84 (0.79-0.89)
0.129
99
246 (0.93)
0.95 (0.93-0.98)
-0.011
Yes
5
34(0.17)
0.16 (0.11-0.22)
0.262
19
18 (0.07)
0.05 (0.03-0.07)
0.141
MSM
 
 
 
 
 
 
 
 
No
19
178(0.91)
0.90 (0.86-0.94)
0.072
115
254 (0.96)
0.97 (0.95-0.99)
-0.008
Yes
4
17 (0.09)
0.10 (0.06-0.14)
-0.351
3
10 (0.04)
0.03 (0.01-0.05)
-1.0
Sex work
 
 
 
 
 
 
 
 
No
14
181(0.93)
0.94 (0.92-0.97)
-0.019
97
228 (0.86)
0.87 (0.83-0.91)
0.068
Yes 9 14 (0.07) 0.06 (0.03-0.09) -0.202 21 36 (0.14) 0.13 (0.09-0.18) 0.103

For homophily, values exceeding 0.3 or -0.3 are in bold.