Demographic characteristics |
Sex |
Female |
7,421 |
51.2 |
77 |
21.3 |
19 |
7.5 |
3 |
7.4 |
0.0000 |
Male |
6,179 |
48.8 |
260 |
78.7 |
209 |
92.5 |
40 |
92.6 |
|
Age (years) |
18–20 |
3,087 |
28.2 |
103 |
37.5 |
72 |
34.8 |
8 |
23.4 |
0.0160 |
21 |
2,151 |
16.3 |
64 |
20.7 |
39 |
19.3 |
7 |
21.5 |
|
22 |
2,593 |
16.7 |
57 |
13.7 |
49 |
17.2 |
12 |
29.0 |
|
23 |
2,673 |
15.8 |
57 |
10.0 |
30 |
10.9 |
10 |
14.7 |
|
24–28 |
3,096 |
23.2 |
56 |
18.2 |
38 |
17.8 |
6 |
11.4 |
|
Race/ethnicity |
White |
7,365 |
68.0 |
196 |
69.7 |
109 |
59.6 |
21 |
52.1 |
0.0063 |
Black |
2,883 |
15.9 |
64 |
15.8 |
56 |
23.0 |
8 |
12.3 |
|
Latino |
2,208 |
11.7 |
53 |
10.1 |
49 |
15.2 |
8 |
24.6 |
|
Native American |
124 |
0.73 |
5 |
2.2 |
2 |
0.5 |
2 |
4.8 |
|
Asian American |
985 |
3.8 |
18 |
2.2 |
11 |
1.7 |
4 |
6.2 |
|
Socioeconomic position |
Education level of mother/primary female caretaker (Wave I) |
<HS education |
2,060 |
16.1 |
45 |
14.3 |
36 |
22.1 |
13 |
20.7 |
0.3621 |
HS education |
3,765 |
34.0 |
95 |
34.0 |
62 |
28.2 |
9 |
45.4 |
|
>HS education |
6,347 |
49.9 |
164 |
51.7 |
109 |
49.8 |
15 |
33.9 |
|
Respondent education level (Wave III) |
<HS education |
1,279 |
10.8 |
51 |
15.9 |
63 |
27.9 |
20 |
53.9 |
0.0000 |
HS education |
12,307 |
89.3 |
286 |
84.1 |
165 |
72.1 |
23 |
46.1 |
|
Respondent/household could not afford housing/utilities in past year (Wave III) |
No |
11,644 |
86.4 |
268 |
80.1 |
179 |
80.5 |
28 |
73.6 |
0.0148 |
Yes |
1,801 |
13.6 |
65 |
19.9 |
47 |
19.5 |
12 |
26.4 |
|
Adolescent delinquency (Wave I) |
Score on delinquency measure |
Low (score of 0–5) |
13,357 |
99.3 |
319 |
95.9 |
211 |
95.2 |
35 |
87.7 |
0.0000 |
High (score of 6–7) |
115 |
0.7 |
13 |
4.1 |
13 |
4.8 |
7 |
12.3 |
|
Adolescent depression/hopelessness (Wave I) |
Thought seriously about suicide in the past year |
No |
11,717 |
87.0 |
265 |
78.6 |
190 |
85.4 |
36 |
90.3 |
0.0042 |
Yes |
1,770 |
13.0 |
69 |
21.4 |
35 |
14.6 |
6 |
9.7 |
|
Believed he/she had at least a 50–50 chance of being killed by the age of 21 |
No |
11,488 |
85.7 |
270 |
82.8 |
173 |
74.8 |
31 |
73.0 |
0.0021 |
Yes |
2,024 |
14.3 |
64 |
17.3 |
55 |
25.2 |
9 |
27.0 |
|
Believed he/she had at least a 50–50 chance of getting HIV/AIDS |
No |
12,026 |
89.4 |
296 |
87.8 |
192 |
83.3 |
35 |
82.0 |
0.1544 |
Yes |
1,470 |
10.6 |
38 |
12.2 |
36 |
16.7 |
6 |
18.0 |
|
Adolescent drug use (Wave I) |
Ever drank and got drunk |
No |
9,803 |
72.1 |
180 |
53.0 |
112 |
52.4 |
20 |
44.1 |
0.0000 |
Yes |
3,655 |
27.9 |
153 |
47.0 |
112 |
47.6 |
22 |
55.9 |
|
Ever used marijuana |
No |
9,902 |
74.0 |
164 |
49.9 |
94 |
39.2 |
17 |
35.2 |
0.0000 |
Yes |
3,558 |
26.0 |
170 |
50.1 |
129 |
60.8 |
25 |
64.8 |
|
Ever used cocaine |
No |
13,053 |
96.9 |
309 |
91.7 |
204 |
90.7 |
35 |
89.7 |
0.0000 |
Yes |
398 |
0.3 |
24 |
8.4 |
19 |
9.4 |
7 |
10.4 |
|
Ever used injection drugs |
No |
13,431 |
99.5 |
332 |
98.4 |
223 |
98.6 |
43 |
100 |
0.0984 |
Yes |
62 |
0.5 |
4 |
1.6 |
4 |
1.4 |
0 |
0.0 |
|
|
Weighted mean (95 % CI) |
Weighted mean (95 % CI) |
|
Weighted mean (95 % CI) |
|
Age at first vaginal sex (Wave I) |
16.5 |
16.4–16.6 |
15.2 |
14.9–15.6 |
15.1 |
14.7–15.5 |
14.1 |
13.3–14.9 |
|