| Sexual activitya | Protected against pregnancy and STIsa | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Model 1 | Model 2 | Model 3 | Model 4 | Model 1 | Model 2 | Model 3 | Model 4 | |||||||||||
OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |||||||||||
School setting | ||||||||||||||||||
 MES | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||||||
 AES | 2.89 (2.08, 4.02) | 2.46 (1.74, 3.47) | 1.41 (0.98, 2.04) | 0.99 (0.65, 1.50) | 0.55 (0.37, 0.83) | 0.57 (0.37, 0.86) | 0.74 (0.47, 1.15) | 0.79 (0.50, 1.25) | ||||||||||
Age | ||||||||||||||||||
 Older than 15.5 years | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||||||
 Younger than 15.5 years | 1.31 (1.15, 1.51) | 1.28 (1.11, 1.48) | 1.26 (1.09, 1.46) | 1.27 (1.09, 1.49) | 0.84 (0.67, 1.04) | 0.84 (0.67, 1.06) | 0.86 (0.68, 1.08) | 0.86 (0.69, 1.09) | ||||||||||
Sex | ||||||||||||||||||
 Male | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||||||
 Female | 1.17 (1.02, 1.34) | 1.20 (1.04, 1.39) | 1.34 (1.15, 1.55) | 1.19 (1.02, 1.40) | 0.92 (0.74, 1.15) | 0.91 (0.72, 1.14) | 0.85 (0.68, 1.07) | 0.88 (0.70, 1.11) | ||||||||||
Family composition | ||||||||||||||||||
 Lives with both biological parents | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||||||
 Lives in single parent household | 1.68 (1.42, 2.00) | 1.61 (1.35, 1.92) | 1.55 (1.29, 1.86) | 1.38 (1.13, 1.68) | 1.11 (0.85, 1.45) | 1.12 (0.86, 1.47) | 1.18 (0.90, 1.55) | 1.21 (0.92, 1.60) | ||||||||||
 Lives in a reconstituted/step family | 2.07 (1.63, 2.64) | 1.89 (1.47, 2.41) | 1.88 (1.46, 2.42) | 1.58 (1.20, 2.09) | 0.92 (0.65, 1.32) | 0.93 (0.65, 1.33) | 0.97 (0.67, 1.40) | 1.01 (0.70, 1.45) | ||||||||||
 Lives in residential or foster care | 2.17 (1.36, 3.47) | 2.18 (1.34, 3.54) | 1.80 (1.09, 3.00) | 1.82 (1.06, 3.14) | 0.74 (0.40, 1.39) | 0.75 (0.40, 1.41) | 0.85 (0.45, 1.62) | 0.89 (0.46, 1.70) | ||||||||||
Paternal employment status | ||||||||||||||||||
 Full time employment | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||||||
 Part time employment | 0.83 (0.58, 1.18) | 0.78 (0.54, 1.12) | 0.69 (0.47, 1.00) | 0.68 (0.45, 1.03) | 0.97 (0.55, 1.71) | 0.99 (0.55, 1.17) | 0.83 (0.57, 1.21) | 0.85 (0.58, 1.24) | ||||||||||
 Unemployed | 1.05 (0.80, 1.36) | 1.09 (0.83, 1.43) | 0.99 (0.75, 1.31) | 1.02 (0.75, 1.37) | 1.12 (0.74, 1.68) | 1.06 (0.70, 1.60) | 1.13 (0.74, 1.71) | 1.13 (0.74, 1.72) | ||||||||||
Maternal employment status | ||||||||||||||||||
 Full time employment | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||||||
 Part time employment | 0.73 (0.62, 0.87) | 0.74 (0.62, 0.89) | 0.78 (0.65, 0.94) | 0.80 (0.66, 0.97) | 0.89 (0.67, 1.20) | 0.90 (0.67, 1.20) | 0.88 (0.65, 1.18) | 0.89 (0.66, 1.21) | ||||||||||
 Unemployed | 0.75 (0.61, 0.92) | 0.77 (0.62, 0.95) | 0.77 (0.62, 0.96) | 0.77 (0.61, 0.97) | 0.65 (0.47, 0.90) | 0.65 (0.47, 0.90) | 0.65 (0.47, 0.91) | 0.65 (0.46, 0.90) | ||||||||||
Frequency of parent-child arguments | ||||||||||||||||||
 At least once a week |  |  |  | 1.00 | 1.00 | 1.00 |  |  |  | 1.00 | 1.00 | 1.00 | ||||||
 Less than once a week |  |  |  | 0.58 (0.50, 0.67) | 0.61 (0.53, 0.72) | 0.72 (0.61, 0.84) |  |  |  | 1.17 (0.92, 1.49) | 1.13 (0.88, 1.44) | 1.10 (0.86, 1.41) | ||||||
Parent-child connectedness | ||||||||||||||||||
 High levels of reported connectedness |  |  |  | 1.00 | 1.00 | 1.00 |  |  |  | 1.00 | 1.00 | 1.00 | ||||||
 Low levels of reported connectedness |  |  |  | 0.95 (0.82, 1.10) | 0.89 (0.76, 1.04) | 0.87 (0.74, 1.03) |  |  |  | 0.93 (0.73, 1.18) | 0.96 (0.76, 1.22) | 0.95 (0.75, 1.21) | ||||||
Family time | ||||||||||||||||||
 Frequently eats meals and go places as a family |  |  |  | 1.00 | 1.00 | 1.00 |  |  |  | 1.00 | 1.00 | 1.00 | ||||||
 Infrequently eats meals and go places as a family |  |  |  | 1.55 (1.34, 1.79) | 1.53 (1.32, 1.77) | 1.33 (1.13, 1.57) |  |  |  | 0.92 (0.72, 1.16) | 0.91 (0.72, 1.16) | 0.96 (0.75, 1.22) | ||||||
Spending money | ||||||||||||||||||
 £24 or less per week |  |  |  | 1.00 | 1.00 | 1.00 |  |  |  | 1.00 | 1.00 | 1.00 | ||||||
 £25 or more per week |  |  |  | 1.74 (1.48, 2.06) | 1.64 (1.39, 1.95) | 1.55 (1.29, 1.87) |  |  |  | 0.88 (0.69, 1.13) | 0.91 (0.71, 1.17) | 0.93 (0.72, 1.20) | ||||||
Parental monitoring | ||||||||||||||||||
 High levels of parental monitoring |  |  |  | 1.00 | 1.00 | 1.00 |  |  |  | 1.00 | 1.00 | 1.00 | ||||||
 Low levels of parental monitoring |  |  |  | 1.32 (1.14, 1.53) | 1.24 (1.06, 1.44) | 1.21 (1.02, 1.42) |  |  |  | 0.92 (0.73, 1.16) | 0.95 (0.75, 1.20) | 0.97 (0.76, 1.23) | ||||||
Intended school leaving age | ||||||||||||||||||
 Remain at school beyond legal leaving age |  |  |  |  |  |  | 1.00 | 1.00 |  |  |  |  |  |  | 1.00 | 1.00 | ||
 Leave school as soon as legally possible |  |  |  |  |  |  | 2.85 (2.36, 3.44) | 1.89 (1.54, 2.33) |  |  |  |  |  |  | 0.63 (0.49, 0.81) | 0.70 (0.54, 0.91) | ||
Expectations of employment, education and training | ||||||||||||||||||
 Will be in education, employment or training |  |  |  |  |  |  | 1.00 | 1.00 |  |  |  |  |  |  | 1.00 | 1.00 | ||
 Will not be in education, employment or training |  |  |  |  |  |  | 0.81 (0.52, 1.27) | 0.79 (0.49, 1.29) |  |  |  |  |  |  | 0.65 (0.33, 1.30) | 0.65 (0.33, 1.29) | ||
Expectations of parenthood | ||||||||||||||||||
 Will be a parent |  |  |  |  |  |  | 1.00 | 1.00 |  |  |  |  |  |  | 1.00 | 1.00 | ||
 Will not be a parent |  |  |  |  |  |  | 0.36 (0.27, 0.50) | 0.42 (0.30, 0.59) |  |  |  |  |  |  | 1.58 (1.10, 2.30) | 1.58 (1.09, 2.30) | ||
Peer behaviours | ||||||||||||||||||
 Less than half of peers have left school |  |  |  |  |  |  |  |  |  | 1.00 |  |  |  |  |  |  |  | 1.00 |
 More than half of peers have left school |  |  |  |  |  |  |  |  |  | 5.10 (4.19, 6.19) |  |  |  |  |  |  |  | 1.01 (0.69, 1.46) |
 Less than half of peers smoke tobacco |  |  |  |  |  |  |  |  |  | 1.00 |  |  |  |  |  |  |  | 1.00 |
 More than half of peers smoke tobacco |  |  |  |  |  |  |  |  |  | 2.01 (1.55, 2.61) |  |  |  |  |  |  |  | 0.74 (0.56, 0.98) |
 Less than half of peers have had sex |  |  |  |  |  |  |  |  |  | 1.00 |  |  |  |  |  |  |  | 1.00 |
 More than half of peers have had sex |  |  |  |  |  |  |  |  |  | 1.89 (1.21, 2.96) |  |  |  |  |  |  |  | 0.77 (0.60, 0.99) |