Michigan Contraceptive Access, Research, and Evaluation Study (M-CARES)
Last registered on March 03, 2020

Pre-Trial

Trial Information
General Information
Title
Michigan Contraceptive Access, Research, and Evaluation Study (M-CARES)
RCT ID
AEARCTR-0003241
Initial registration date
February 13, 2020
Last updated
March 03, 2020 10:51 AM EST
Location(s)

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Primary Investigator
Affiliation
University of Michigan
Other Primary Investigator(s)
PI Affiliation
University of Michigan
PI Affiliation
University of Michigan
PI Affiliation
University of Michigan
PI Affiliation
University of Michigan
Additional Trial Information
Status
On going
Start date
2018-08-20
End date
2040-08-19
Secondary IDs
Abstract
M-CARES will provide novel experimental evidence on the effects of financial access to contraception in the U.S. on contraceptive efficacy, pregnancy, and childbearing for U.S. women. It also generates experimental evidence of the effects of financial access to contraception on a wide range of less commonly studied outcomes, including physical health and health care use; educational attainment and labor-market outcomes; financial security; relationship quality; mental health and well-being; and receipt of public benefits. M-CARES will recruit 5,000 women ages 18 to 35 years old at Planned Parenthood of Michigan (PPMI) clinics. Half of the study participants will be randomized to receive a voucher to purchase contraceptives of their choice at PPMI within 100 days of study enrollment.
External Link(s)
Registration Citation
Citation
Bailey, Martha et al. 2020. "Michigan Contraceptive Access, Research, and Evaluation Study (M-CARES)." AEA RCT Registry. March 03. https://doi.org/10.1257/rct.3241-1.1.
Experimental Details
Interventions
Intervention(s)
After taking a brief screening survey, a tablet will randomize women to receive vouchers for contraceptives. From August 2018-March 3, 2019, the voucher amounts reflect the total out-of-pocket costs for an uninsured woman to have a Liletta IUD. From March 4-forward, the voucher amounts reflect the total out-of-pocket costs for an uninsured woman to have a name-brand IUD inserted.
Intervention Start Date
2018-08-20
Intervention End Date
2021-12-31
Primary Outcomes
Primary Outcomes (end points)
Primary outcomes for year 1 include (1) contraceptive efficacy and (2) pregnancy, abortion, and childbirth.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary outcomes include (1) economic self-sufficiency, (2) financial security, (3) neighborhood quality, (4) physical health and ability, (5) mental health and well-being, and (6) relationship quality.
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
After taking a brief screening survey, a tablet will randomize half of eligible, participating women to the intervention. Eligible, participating women and their children will be linked to their administrative records and followed in subsequent surveys.
Experimental Design Details
Not available
Randomization Method
Randomization will be done by a tablet at the time of enrollment.
Randomization Unit
Randomization will be done at the individual level.
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
5,000 individuals
Sample size: planned number of observations
5,000 individuals
Sample size (or number of clusters) by treatment arms
2,500 women will receive vouchers for contraception, 2,500 women are in the control group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

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IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Health Sciences and Behavioral Sciences IRB, University of Michigan
IRB Approval Date
2018-12-21
IRB Approval Number
HUM00132909
Analysis Plan

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