Intervention not reported
Use of birth control methods (condom use in last sex) · Male and female adolescents aged 10 years to 19 years
The intervention showed no clear difference in use of birth control methods (condom use in last sex) (high certainty).
1 finding from 1 review
Intervention not reported
Use of birth control methods (hormonal contraceptives) · Male and female adolescents aged 10 years to 19 years
The intervention leads to higher use of birth control methods (hormonal contraceptives) (high certainty).
1 finding from 1 review
Intervention not reported
Sexually Transmitted Diseases · Male and female adolescents aged 10 years to 19 years
The intervention showed no clear difference in sexually Transmitted Diseases (high certainty).
1 finding from 1 review
Intervention not reported
Use of birth control methods (condom use at last sex) · Male and female adolescents aged 10 years to 19 years
The intervention probably leads to higher use of birth control methods (condom use at last sex) (moderate certainty).
1 finding from 1 review
Intervention not reported
Initiation of sexual intercourse (mixed gender) · Male and female adolescents aged 10 years to 19 years
The intervention showed no clear difference in initiation of sexual intercourse (mixed gender) (low certainty).
1 finding from 1 review
Intervention not reported
Unintended pregnancy · Male and female adolescents aged 10 years to 19 years
The intervention showed no clear difference in unintended pregnancy (low certainty).
1 finding from 1 review
Intervention not reported
Initiation of sexual intercourse (mixed gender) · Male and female adolescents aged 10 years to 19 years
It is very uncertain whether the intervention changes initiation of sexual intercourse (mixed gender) (very low certainty).
1 finding from 1 review
Intervention not reported
Use of birth control methods (condom use at last sex) · Male and female adolescents aged 10 years to 19 years
The intervention showed no clear difference in use of birth control methods (condom use at last sex) (moderate certainty).
1 finding from 1 review
Intervention not reported
Quantity of alcohol consumed · young adults aged up to 25 years
The intervention showed no clear difference in quantity of alcohol consumed (moderate certainty).
1 finding from 1 review
Intervention not reported
Frequency of alcohol consumption · young people aged up to 25 years
The intervention showed no clear difference in frequency of alcohol consumption (low certainty).
1 finding from 1 review
Intervention not reported
Binge drinking · young people aged up to 25 years
The intervention showed no clear difference in binge drinking (low certainty).
1 finding from 1 review
Intervention not reported
Alcohol problems · young people aged up to 25 years
The intervention showed no clear difference in alcohol problems (moderate certainty).
1 finding from 1 review
Intervention not reported
Peak BAC · young people aged up to 25 years
The intervention showed no clear difference in peak BAC (moderate certainty).
1 finding from 1 review
Intervention not reported
Drink‐driving · young people aged up to 25 years
The intervention showed no clear difference in drink‐driving (moderate certainty).
1 finding from 1 review
Intervention not reported
Risky behaviour · young people aged up to 25 years
The intervention showed no clear difference in risky behaviour (moderate certainty).
1 finding from 1 review
Intervention not reported
Frequency of alcohol consumption · young adults aged up to 25 years
The intervention showed no clear difference in frequency of alcohol consumption (moderate certainty).
1 finding from 1 review
Intervention not reported
Binge drinking · young adults aged up to 25 years
The intervention showed no clear difference in binge drinking (moderate certainty).
1 finding from 1 review
Intervention not reported
Alcohol problems · young adults aged up to 25 years
The intervention showed no clear difference in alcohol problems (low certainty).
1 finding from 1 review
Intervention not reported
Peak BAC · young adults aged up to 25 years
The intervention showed no clear difference in peak BAC (moderate certainty).
1 finding from 1 review
Intervention not reported
Drink‐driving · young adults aged up to 25 years
The intervention showed no clear difference in drink‐driving (moderate certainty).
1 finding from 1 review