Deadlines and Family Planning
Last registered on December 01, 2014


Trial Information
General Information
Deadlines and Family Planning
Initial registration date
March 21, 2014
Last updated
December 01, 2014 9:05 AM EST
Primary Investigator
Harvard School of Public Health
Other Primary Investigator(s)
PI Affiliation
Harvard School of Public Health
Additional Trial Information
On going
Start date
End date
Secondary IDs
The project is a randomized trial which evaluates the impacts of deadlines on the effectiveness of vouchers for free family planning in the early postpartum period. The trial is being conducted in collaboration with Jacaranda Health, a chain of maternity clinics. The sample population is clients of Jacaranda Health.
External Link(s)
Registration Citation
Cohen, Jessica and Margaret McConnell. 2014. "Deadlines and Family Planning." AEA RCT Registry. December 01.
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Experimental Details
Our intervention provides free family planning consultation and contraception, with and without deadlines, to women after childbirth. An addition to the intervention that began in November provides reminders to start family planning after childbirth.
Intervention Start Date
Intervention End Date
Primary Outcomes
Primary Outcomes (end points)
Our primary outcomes come from two sources of data: administrative data from Jacaranda's clinical records and survey responses from a follow-up survey conducted nine weeks after delivery.

We will construct the following primary outcomes from administrative data:
• Participant in any voucher group redeemed voucher for family planning (binary)
• If participant redeemed voucher, time since delivery that voucher was redeemed (continuous)

We will construct the following primary outcomes from survey data:
• Participant visited any health facility for access to family planning since delivery (binary)
• Participant obtained family planning from any source (binary)
• If obtained family planning, time since delivery that family planning was obtained (continuous)
• Participant is actively using any form of family planning (except exclusive breast-feeding) - binary
• If participant is using family planning, time since delivery that family planning was initiated (continuous)

We will also consider the following secondary outcomes constructed from survey data:
• Participant received any counseling about family planning since delivery (binary)
• Which family planning method was obtained if obtained
• Which family planning message is being used if used
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Women (prenatal clients at our partner maternity clinic) will be randomized into one of three groups, which will all receive basic information about family planning: 1) a group receiving a voucher for free family planning (women may choose among a menu of family planning products) with a deadline that the voucher must be used by the eight week after their expected due date, 2) a group receiving a voucher for free family planning with no deadline, 3) a control group that receives neither.
(The deadline is set to be 8 weeks after the expected due date in order to allow 6 weeks for redemption for women who deliver up to two weeks past their expected due date.)

In a cross-cutting randomization which begins in November 2014, we randomize individuals into two groups: 1) a treatment group that receives a reminder to start family planning 5 weeks after delivery and 2) a control group that receives no reminder. The 3 by 2 randomization design leads to 6 final treatments.
Experimental Design Details
Randomization Method
Randomization done in office by a computer
Randomization Unit
Individual randomization
Was the treatment clustered?
Experiment Characteristics
Sample size: planned number of clusters
Sample size: planned number of observations
Enrollment is planned to be 900 individuals
Sample size (or number of clusters) by treatment arms
There will be 300 individuals in the control group, 300 individuals in the group that receives a voucher with no deadline and 300 individuals in the group that receives a voucher with a deadline.

There will be 600 individuals in the no reminder group and 300 in the reminder group.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB Name
Harvard School of Public Health
IRB Approval Date
IRB Approval Number
IRB Name
Africa Medical and Research Foundation
IRB Approval Date
IRB Approval Number
Post Trial Information
Study Withdrawal
Is the intervention completed?
Is data collection complete?
Data Publication
Data Publication
Is public data available?
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers