Perspectives on Sexual and Reproductive Health | |
Factors Affecting British Teenagers' |
TABLE 1. Percentage distribution of 16-18-year-old students in 13 schools, by selected characteristics, United Kingdom, 1999 | |
Characteristic | % (N=963) |
Sex | |
Male | 40.2 |
Female | 59.8 |
Age | |
16 | 54.4 |
17 | 28.9 |
18 | 16.7 |
Race/ethnicity | |
White | 92.1 |
Black | 3.6 |
Asian | 4.3 |
Social deprivation level | |
Low | 35.7 |
Medium | 31.0 |
High | 33.3 |
Ever had sex | |
Yes | 43.7 |
No | 56.2 |
Total | 100.0 |
Note: Ns are reduced for the following variables because of missing observations: gender (two), ethnicity (19) and social deprivation level (185). |
TABLE 2. Percentage distribution of sexually experienced students, by selected characteristics, according to gender | ||
Characteristic | Males | Females |
(N=178) | (N=243) | |
Age at first sex | ||
<16 | 46.6 | 51.4 |
>=16 | 53.4 | 48.6 |
Duration of relationship before first sex | ||
<1 day | 27.3 | 10.9 |
2 days-4 weeks | 26.8 | 16.4 |
5-12 weeks | 15.1 | 21.8 |
13-26 weeks | 18.0 | 32.8 |
>=27 weeks | 12.8 | 18.1 |
Used modern method at first sex | ||
Yes | 82.8 | 88.0 |
No | 17.2 | 12.0 |
Discussed contraceptive use before first sex | ||
Not at all | 42.3 | 27.0 |
Sort of | 15.4 | 14.1 |
A little | 26.9 | 28.2 |
A lot | 15.4 | 30.7 |
Visited service provider | ||
Before first sex | 12.0 | 22.5 |
After first sex | 12.0 | 51.7 |
Not at all | 76.0 | 25.8 |
Total | 100.0 | 100.0 |
Note: Ns are reduced for the duration of relationship variable by six for males and five for females. |
TABLE 3. Odds ratios from logistic regression analyses predicting the effects of various characteristics on the likelihood of contraceptive use at first intercourse, by gender | ||
Characteristic | Odds ratio | |
Males (N=170) | ||
Age at first sex | 1.36 | |
Discussed contraceptive use before first sex | ||
Not at all (ref) | 1.00 | |
Sort of | 5.65* | |
A little | 13.80* | |
A lot | 6.13 | |
No. of intimate reasons for having sex | ||
0 (ref) | 1.00 | |
1 | 6.35* | |
2 | 1.89 | |
Sex positively portrayed by parents | 1.16* | |
Constant | 0.06 | |
-2 log likelihood | 105.9 | |
df | 7 | |
Females (N=235) | ||
Age at first sex | 1.76* | |
Visited service provider | ||
Before first sex | 2.34 | |
After first sex (ref) | 1.00 | |
Not at all | 4.98* | |
Expected to have sex at the time | ||
Yes (ref) | 1.00 | |
Sort of | 0.16* | |
No | 0.37* | |
Discussed contraceptive use before first sex | ||
Not at all (ref) | 1.00 | |
Sort of | 1.88 | |
A little | 6.24** | |
A lot | 14.96** | |
Ability to interact with the opposite sex | 1.19* | |
Constant | 0.00 | |
-2 log likelihood | 118.1 | |
df | 9 | |
*p<.05. **p<.01. p<.10. Note: ref=reference category. |
TABLE 4. Odds ratios from logistic regression analyses predicting the effects of various characteristics on the likelihood of discussing contraceptive use before first intercourse, by gender | |
Characteristic | Odds ratio |
Males (N=161) | |
Social deprivation level | |
Low (ref) | 1.00 |
Medium | 0.70 |
High | 0.12** |
Missing values | 0.37* |
Duration of relationship before first sex | |
<1 day (ref) | 1.00 |
2 days-4 weeks | 4.09** |
5-12 weeks | 8.08** |
13-26 weeks | 8.69** |
>=27 weeks | 60.99** |
Missing values | 4.14 |
Parents' openness to discussing sex | 1.14** |
Constant | 1.68 |
-2 log likelihood | 183.7 |
df | 9 |
Females (N=237) | |
No. of intimate reasons for having sex | |
0 (ref) | 1.00 |
1 | 4.16** |
2 | 8.76** |
Parental contact score | 1.04** |
Constant | 1.08 |
-2 log likelihood | 272.9 |
df | 3 |
*p<.05. **p<.01. Refers to individuals who did not provide a valid response, who were nonetheless kept in the analysis to maintain the original sample size. Composite score based on measures of parental availability and warmth during primary school years and early adolescence. Note: ref=reference category. |
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© copyright 2002, The Alan Guttmacher Institute. |