The study involved 70,000 students from 328 primary schools and looked at the effectiveness of these interventions on childbearing, seen by the study’s authors as a proxy for risky behaviours that may result in pregnancy. The condom debates and essays were found to increase practical knowledge and self-reported use of condoms, but yielded no concrete data related to pregnancy and childbearing. However, the reduction in the cost of education—by providing free school uniforms for students in the sixth grade—reduced dropout rates and adolescent childbearing. Since then, the main financial barrier to accessing primary education has been the cost of school uniforms, which cost about $6 each.