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CompletedNCT05173350Updated Aug 12, 2026

RETAIN Kentucky Impact Evaluation

An interventional study of RETAIN KY and Active Comparator in Disability, sponsored by Mathematica Policy Research, Inc.. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-08-12.

Sponsored by Mathematica Policy Research, Inc. · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
3,153
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The Retaining Employment and Talent after Injury/Illness Network (RETAIN) demonstration is a collaborative effort between the U.S. Department of Labor (DOL) and the Social Security Administration (SSA) to improve employment outcomes for individuals who experience injuries or illnesses that put them at risk of exiting the labor force and relying on disability programs and other public supports in the long term. RETAIN projects include a combination of medical provider services, stay-at-work/return-to-work (SAW/RTW) coordination services, and other SAW/RTW services. This evaluation will focus on The Kentucky Education and Workforce Development Cabinet's implementation of "RETAIN KY" statewide. The evaluation will document how the project is implemented, describe enrollees, estimate the project's impacts on enrollees' outcomes, and assess whether the benefits outweigh the costs.

Read the detailed description

SSA contracted with Mathematica to conduct an independent evaluation of RETAIN Kentucky. Under the RETAIN model medical providers receive training and incentives to use occupational health best practices. The state agency also coordinates SAW/RTW services for the enrollee, fosters communication among RETAIN stakeholders about the treatment enrollee returning to work, and monitors the enrollee's medical and employment progress. RETAIN Kentucky also provides individualized intensive vocational services from RETAIN RTW Coordinators, with an emphasis on assistive technology, universal design, and peer support.

Kentucky uses a multi-method approach toward recruitment that includes referrals from medical providers, employers, Office of Vocational Rehabilitation, workforce and disability management organizations, community partners, and word of mouth. A return-to-work (RTW) coordinator conducts intake, determines enrollees' eligibility, and randomly assigns each enrollee to either a treatment group that is eligible to receive the full set of RETAIN intervention activities or a control group that is not. The evaluation team then compares the outcomes of the two groups and gathers evidence on how each RETAIN project shaped the outcomes of enrollees who were eligible for its services, regardless of whether they participated in those services. Data sources include enrollment data, surveys, administrative records, program data, and qualitative data.

02

Conditions studied

  • Disability

Keywords

  • disability
  • employment
  • unemployment
03

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Individuals who are at risk of exiting the workforce due to non-work-related illness of injury
  • Individuals who are employed or have been employed within the last 12 months and made at least $1,000 in one of those months
  • Individuals who reside in the Kentucky
  • Individuals must not have applied for or be receiving federal disability benefits including SSDI and SSI within the last 5 years

Exclusion criteria

Exclusion Criteria:

  • Individuals who are do not have a non-work-related illness or injury that puts them at risk of exiting the workforce
  • Individuals who unemployed or have not been employed within the last 12 months
  • Individuals who have not made at least $1,000 in the past 12 months
  • Individuals who do not reside in the Kentucky
  • Individuals who have applied for or be receiving federal disability benefits including SSDI and SSI within the last 5 years
04

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
3,153 participants (actual)

Study arms

  • Experimental
    RETAIN Programming

    The experimental group receives the full set of RETAIN intervention activities.

    Other: RETAIN KY

  • Active comparator
    Active Comparator

    The active comparator group does not receive the full set of RETAIN intervention activities.

    Other: Active Comparator

Interventions

  • OtherRETAIN KY

    The experimental group receives a combination of medical provider services, stay-at-work (SAW)/return-to-work (RTW) coordination services, and other SAW/RTW services. Services offered by the project include individualized intensive vocational services from RETAIN RTW Coordinators, with an emphasis on assistive technology, universal design, and peer support. The project provides training on SAW/RTW best practices and RETAIN, as well as financial incentives to health care professionals. The treatment group is eligible to receive the full set of RETAIN intervention activities.

  • OtherActive Comparator

    Those in the active comparator arm continue to receive medical services. A RTW coordinator creates a RTW plan with the enrollee and refers them to existing resources. The RTW coordinator works with enrollees for 2.5 hours total.

05

What researchers measure

Primary outcomes

  1. Share of enrollees employed in the fourth quarter after enrollment

    Share of enrollees employed in the fourth quarter after enrollment obtained from state unemployment insurance wage records. These files include individual-level wage records for six quarters surrounding enrollment in the study, including the quarter prior to enrollment, the quarter of enrollment, and four post-enrollment quarters.

    Time frame: Measured over the three months in the fourth quarter after enrollment

  2. Enrollee earnings in the fourth quarter after enrollment

    Sum of enrollee earnings in the fourth quarter after enrollment obtained from state unemployment insurance wage records. These files include individual-level wage records for six quarters surrounding enrollment in the study, including the quarter prior to enrollment, the quarter of enrollment, and four post-enrollment quarters.

    Time frame: Measured over the three months in the fourth quarter after enrollment

  3. Share of enrollees that applied for SSDI or SSI during the 12 months after enrollment

    Share of enrollees that applied for SSDI or SSI during any of the 12 months after enrollment obtained from SSA program data. These files include detailed information about Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI) applications SSDI and SSI awards, SSDI and SSI benefit amounts and enrollee characteristics (for enrollees who have ever applied for SSA program benefits)

    Time frame: Measured in the 12 months after enrollment

06

Study locations

1 site
  • Human Development Institute, University of Kentucky
    Lexington, Kentucky 40506, United States
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT05173350
Lead sponsor
Mathematica Policy Research, Inc.
Collaborators
Social Security Administration, The United States
Responsible party
Sponsor
First posted
Dec 29, 2021
Start date
Oct 18, 2021
Primary completion
Aug 18, 2025
Completion
Feb 28, 2026
Last update
Aug 12, 2026

Study contacts

Jill Berk, PhD
principal investigator · Mathematica Policy Research, Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
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