Alternative Approaches to Reduce Teenage Pregnancy in Peru

Last registered on November 30, 2022


Trial Information

General Information

Alternative Approaches to Reduce Teenage Pregnancy in Peru
Initial registration date
November 19, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
November 30, 2022, 2:35 PM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.


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Primary Investigator

Duke University

Other Primary Investigator(s)

PI Affiliation
Duke University
PI Affiliation
Duke University

Additional Trial Information

On going
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Teenage pregnancy is a persistent problem both in developed and developing countries. Besides its adverse effects on mother and child health, its occurrence hinders educational achievement and upward economic mobility as teenagers may choose to drop school. While there is evidence on the effect of increased sexual education on adolescent attitudes, condom use, or sexual initiation, there is little evidence to inform policies oriented toward addressing the problem in rural and indigenous populations. We evaluate two different approaches to delivering sexual education in rural Peru. First, training and empowering school teachers to incorporate and provide sexual education in the school. Second, we evaluate an alternative approach that brings professional on-demand counseling about health and sex for students.
External Link(s)

Registration Citation

Field, Erica, Daniel Hurtado and Renzo Severino. 2022. "Alternative Approaches to Reduce Teenage Pregnancy in Peru." AEA RCT Registry. November 30.
Experimental Details


The project proposes a Randomized Control Trial (RCT) design to evaluate the effectiveness of Kallpa’s program “Sexual and reproductive rights among the indigenous youth in Ayacucho” which aimed at providing information about reproductive health and reducing teen pregnancies for indigenous students in Ayacucho region.

The program consists of two main components:

1. School tutors' sexual health education certificate (SexEd). A 4-month certificate education course targeted to all tutors at all levels of secondary (5 levels in Peru’s system). The modules of the course cover the following topics: sexual rights, pregnancy/family planning and the use of contraceptives, the role of sexuality (empowerment), and prevention of sexual violence.

The intervention aims to provide resources to school tutors. Then, they will apply the knowledge learned and the tools provided to teach sexual education in schools directly to students properly. Kallpa has institutional agreements with the school systems that commit the tutors who receive this certificate to provide at least 04 sexual education sessions in-class to students within the remaining of the current school year. In this component, Kallpa does not have any direct contact with students.

2. Bus service (BUS). A bus with professional counselors provides information to students on demand. The bus will visit the schools two times within a school year.

The intervention work as an information/referral service. The bus aims to provide counseling services that schools in rural areas often lack. The objective is to educate, provide information/referrals to local health services, and promote healthy behaviors. As part of the Bus service, Kallpa coordinates with school authorities, local municipalities and local health centers.
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
1. Decision-making
2. Sexual and reproductive rights
3. Sexual violence
4. Teen pregnancy
5. Life planning
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The study follows a randomized control trial (RCT) design. The unit of randomization spans 120 schools in rural Ayacucho (one of the poorest regions of Peru), and the unit of analysis are students in all levels of secondary. Peru’s secondary system consists in 5 levels (grades), and students age is 11-19 years old. Schools are assigned randomly and evenly into 3 groups: two treatment groups and one control group. Randomization stratifies for province, and school characteristics.
Experimental Design Details
Not available
Randomization Method
Randomization done by a computer using Stata.
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
120 schools
Sample size: planned number of observations
10,000 students
Sample size (or number of clusters) by treatment arms
40 schools control group, 40 schools teacher training and BUS treatment, 40 schools BUS treatment only
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
Innovations for Poverty Action IRB
IRB Approval Date
IRB Approval Number