Uptake of modern contraceptives in Burkina Faso: men’s involvement, polygamy and peer effects

Last registered on November 15, 2021

Pre-Trial

Trial Information

General Information

Title
Uptake of modern contraceptives in Burkina Faso: men’s involvement, polygamy and peer effects
RCT ID
AEARCTR-0003007
Initial registration date
May 20, 2018
Last updated
November 15, 2021, 10:12 AM EST

Locations

Region

Primary Investigator

Affiliation
University of East Anglia

Other Primary Investigator(s)

PI Affiliation
London School of Hygiene and Tropical Medicine

Additional Trial Information

Status
Completed
Start date
2018-05-22
End date
2019-07-01
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
With this trial, we study the influence of men’s involvement on the uptake of modern contraceptives in 30 rural villages in the region of Hauts-Bassins, Burkina Faso. Women who do not use modern contraceptives yet will receive a voucher that gives them access to free modern contraceptives at the nearest local health centre. We will compare two treatments that vary in men’s involvement: either the voucher is given in private (no involvement of men), or it is given to her husband, with her being present. We will stratify by the type of households (monogamous and polygamous households), to test whether the effect of men’s involvement differs between both types of households. Monogamous couples where the woman already uses modern contraceptives will be asked to transfer the voucher to someone else in their village who does not use modern contraceptives yet. Here, we compare two treatments that differ in who receives the voucher from us (either the woman in private, or the husband in private). A comparison between both treatments allows us to compare peer effects between men and women. The main outcome variables for all treatment comparisons are the use of the voucher and whether any modern contraceptives are used immediately after the visit (short-term effects) and a few months later (long-term effects). Additional outcome variables are fertility, women’s well-being and intra-household cooperation/tensions. For couples who are asked to transfer the voucher, we are also interested in whether that is actually done, as well as the characteristics of the persons they transfer it to.
External Link(s)

Registration Citation

Citation
D'Exelle, Ben and Aurelia Lepine. 2021. "Uptake of modern contraceptives in Burkina Faso: men’s involvement, polygamy and peer effects." AEA RCT Registry. November 15. https://doi.org/10.1257/rct.3007-2.2
Former Citation
D'Exelle, Ben, Ben D'Exelle and Aurelia Lepine. 2021. "Uptake of modern contraceptives in Burkina Faso: men’s involvement, polygamy and peer effects." AEA RCT Registry. November 15. https://www.socialscienceregistry.org/trials/3007/history/104218
Experimental Details

Interventions

Intervention(s)
Women of monogamous or polygamous couples who do not use modern contraceptives yet will receive a voucher that gives them access to free modern contraceptives at the nearest local health centre.

Monogamous couples where the woman already uses modern contraceptives will be asked to transfer the voucher to someone else in their village who does not use modern contraceptives yet.
Intervention Start Date
2018-05-22
Intervention End Date
2018-09-01

Primary Outcomes

Primary Outcomes (end points)
The main outcome variables for all treatment comparisons are the use of the voucher (i.e. whether it is used, and how long the participant waits before using the voucher) and whether any modern contraceptives are used immediately after the visit (short-term effects) and a few months later (long-term effects). For couples who are asked to transfer the voucher, we are also interested in whether that is actually done, as well as the characteristics of the persons they transfer it to.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Additional outcome variables are fertility, women’s well-being and intra-household cooperation/tensions.
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
With this trial, we study the influence of men’s involvement on the uptake of modern contraceptives in 30 rural villages in the region of Hauts-Bassins, Burkina Faso. Women who do not use modern contraceptives yet will receive a voucher that gives them access to free modern contraceptives at the nearest local health centre. We will compare two treatments that vary in men’s involvement: either the voucher is given in private (no involvement of men), or it is given to her husband, with her being present. We will stratify by the type of households (monogamous and polygamous households), to test whether the effect of men’s involvement differs between both types of households. Monogamous couples where the woman already uses modern contraceptives will be asked to transfer the voucher to someone else in their village who does not use modern contraceptives yet. Here, we compare two treatments that differ in who receives the voucher from us (either the woman in private, or the husband in private). A comparison between both treatments allows us to compare peer effects between men and women. The main outcome variables for all treatment comparisons are the use of the voucher and whether any modern contraceptives are used immediately after the visit (short-term effects) and a few months later (long-term effects). For couples who are asked to transfer the voucher, we are also interested in whether that is actually done, as well as the characteristics of the persons they transfer it to. Additional outcome variables are fertility, women’s well-being and intra-household cooperation/tensions.
Experimental Design Details
Randomization Method
Randomization done by algorithm on electronic data collection devices (tablets) as programmed with Open Data Kit.
Randomization Unit
Couple
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
No clusters, as randomization is done at the couple level.
Sample size: planned number of observations
2000 couples
Sample size (or number of clusters) by treatment arms
600 couples of monogamous households who do not use modern contraceptives: with 300 of them we will give the voucher to the woman in private; with the other 300 we will give the voucher to the husband with the woman being present.

600 couples of polygamous households who do not use modern contraceptives: with 300 of them we will give the voucher to the woman in private; with the other 300 we will give the voucher to the husband with the woman being present.

800 couples of monogamous households who already use contraceptives: with 400 of them we will give the voucher to the woman in private to transfer it to someone else; with the other 400 we will give the voucher to the husband in private.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We anticipate that with a number of 300 participants per arm we are able to detect a change in contraceptive use by 11 points assuming a baseline rate of 40%, a power of 80% and a statistical significance of 5% and no attrition.
IRB

Institutional Review Boards (IRBs)

IRB Name
University of East Anglia
IRB Approval Date
2016-10-03
IRB Approval Number
N/A
IRB Name
Ministere de la sante - comite d'ethique pour la recherche en sante (Burkina Faso)
IRB Approval Date
2017-06-07
IRB Approval Number
DELIBERATION No 2017-6-075
Analysis Plan

Analysis Plan Documents

Pre-analysis plan

MD5: 59a264acf2b8a82e34c1b7c65d3f8050

SHA1: 4d608af8c6073ed535d45ff4014031718716eba4

Uploaded At: May 20, 2018

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
Yes
Intervention Completion Date
July 15, 2018, 12:00 +00:00
Data Collection Complete
Yes
Data Collection Completion Date
January 10, 2019, 12:00 +00:00
Final Sample Size: Number of Clusters (Unit of Randomization)
Was attrition correlated with treatment status?
No
Final Sample Size: Total Number of Observations
Final Sample Size (or Number of Clusters) by Treatment Arms
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials