An interventional study of Housing Assessment/Safety Modifications in Accident Injury and Home Injury, sponsored by Johns Hopkins Bloomberg School of Public Health. Completed at 1 site in United States. Open to participants aged Up to 7 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-22.
Sponsored by Johns Hopkins Bloomberg School of Public Health · Not applicable, Interventional, and Prevention
This implementation study uses a multi-method quantitative and qualitative, non-experimental design to estimate the magnitude of home injury risks, identify strategies for addressing those risks and sustaining those interventions, and to calculate the costs of housing-related modifications to prevent childhood home injuries. The study objectives are to: Aim 1. Implement injury prevention measures based on safety hazards identified using the CHASE Tool within 300 low-income households (at or below 80% AMI) in Baltimore City or County; Aim 2. Determine the costs of the injury prevention measures completed by residents and/or professional providers; Aim 3. Conduct a formative evaluation using mixed methods to 3a. determine feasibility of incorporating injury prevention into residential programs from the perspective of installers and residents, including identifying barriers and facilitators, and 3b. understand the consistency of implementing and maintaining the injury prevention measures across referral sources, by residents and staff.
To address the gap between known preventative factors for child home injuries and the uptake of those prevention approaches by high-risk families, the hazards must be systematically and rigorously assessed, and modifications properly implemented and evaluated. Although there are standardized approaches to assess and address particular home health hazards, such as lead paint, asthma, there is no standard tool for injury control. The study team has developed and tested a tool to assess child injury risks in the home (CHASE Tool). The study team has adapted the existing CHASE tool, found in the article by Shields et al 2019, to specify home modifications needed for 15 priority injury hazards that are the focus of this project based on the literature, availability of prevention measures, and the preliminary studies; they include: scalds, falls, fires, crush/cut/pierce injuries, poisonings, and strangulation) however, the time and cost burden to conduct the assessments on a large scale and to implement evidence-based modifications have not been documented, nor is there information available about residents' willingness to accept these modifications. Thus, the investigators propose to combine the child injury prevention expertise of the Johns Hopkins Center for Injury Research and Policy faculty with the home modification and community outreach expertise of Green and Healthy Homes Initiative (GHHI) to demonstrate a new way to improve the safety of children's homes.
The existing CHASE tool, found in the article by Shields et al 2019, has been adapted to specify home modifications needed for 15 priority injury hazards that are the focus of this project based on the literature, availability of prevention measures, and the preliminary studies; they include: scalds, falls, fires, crush/cut/pierce injuries, poisonings, and strangulation.
This project represents the next step in the CHASE project through which the following objectives will be met: Objective 1. Implement injury prevention measures based on safety hazards identified using the CHASE Tool within 300 low-income households (at or below 80% AMI) in Baltimore City or Baltimore County; Objective 2. Determine the costs of the injury prevention measures completed by residents and/or professional providers; Objective 3. Conduct a formative evaluation using mixed methods to 3a. determine feasibility of incorporating injury prevention into residential programs from the perspective of installers and residents, including identifying barriers and facilitators, and 3b. understand the consistency of implementing and maintaining the injury prevention measures across referral sources, by residents and staff.
The Implementation study will be conducted in five phases including the following. Phase 1: Community Engagement. Phase 2: The Enrollment Phase including an initial home visit and assessment for injury risks, CHASE Family Feedback Form creation and education including guidance about needed modifications. Phase 3: Re-Assessment Phase which includes a second home visit to assess change, perform modifications when needed, and survey to understand barriers and facilitators. Phase 4: Follow-Up to measure sustainability of modifications and obtain feedback on the program. Phase 5: Evaluation and Dissemination of results.
The study will enroll a sample of N=300 homes of low-income families with children \< 7 years of age who are referred from two of GHHI's currently active programs, Department of Social Services (DSS) Foster Care Homes Program (FCHP, n=200 homes) and Amerigroup Maryland Asthma Program (AMAP, n=100 homes), which are Medicaid eligible children referred from Amerigroup-Maryland into GHHI's asthma home-visiting program.
In addition to completing the three objectives, a user-friendly CHASE Home Safety Modifications Tool Kit and online training module for utilization by other programs working in homes with children will be created and disseminated, thus expanding the potential impact of the present work and HUD's to other housing service providers and beneficiaries nationally.
51 studies on the registry are indexed under Accidental Injuries; 28 are open to participants now.
This study's enrollment of 300 is above the median of 115 across 30 interventional studies indexed under Accidental Injuries.
Browse Accidental Injuries studies →Johns Hopkins Bloomberg School of Public Health is the lead sponsor of 364 studies on the registry; 41 are open to participants now.
Of its 5 completed or terminated interventional studies of FDA-regulated products, 3 (60%) have results posted.
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Exclusion Criteria:
This arm consists of 300 homes of low-income families with children \< 7 years of age who are referred from two of GHHI's currently active programs, DSS Foster Care Homes Program, and Amerigroup Maryland Asthma Program.
Other: Housing Assessment/Safety Modifications
A GHHI Assessor will complete three home visits to assess home injury hazards and provide a scope of work that includes home modifications that directly address each of the identified home injury hazards. The Assessor will also provide do-it-yourself education materials and injury prevention supplies to assist them in completing the modifications.
Change in number of Poison Storage hazards
Poison storage injury hazards will be identified using the CHASE Tool. Fail criteria include: "Your medicine is not locked up" and "Your household products are not locked up."
Time frame: Baseline, 1 month, 3 months
Change in number of Smoke Alarms hazards
Smoke alarm injury hazards will be identified using the CHASE Tool. Fail criteria include: "You do not have a smoke alarm on every level of your home."
Time frame: Baseline, 1 month, 3 months
Change in number of Fire Escape Safety hazards
Fire escape safety injury hazards will be identified using the CHASE Tool. Fail criteria include: "You do not have at least two exits in all sleeping areas", "Your fire escape exit (door/window) is not working", and "Your fire escape exit(s) are blocked."
Time frame: Baseline, 1 month, 3 months
Change in number of Sprinkler System hazards
Sprinkler system injury hazards will be identified using the CHASE Tool. Fail criteria include: "Your sprinkler system is leaking."
Time frame: Baseline, 1 month, 3 months
Change in number of Carbon Monoxide Alarm hazards
Carbon monoxide alarm injury hazards will be identified using the CHASE Tool. Fail criteria include: "You do not have at least one carbon monoxide alarm on each level of the home."
Time frame: Baseline, 1 month, 3 months
Change in number of Electrical Fire and Shock hazards
Electrical fire and shock injury hazards will be identified using the CHASE Tool. Fail criteria include: "You have a dangerous power strip", "You have a dangerous electrical cord", "You have wires sticking out", "Your electrical receptacle does not have a cover", "Your electrical receptacle is broken", and "Your electrical breaker is broken."
Time frame: Baseline, 1 month, 3 months
Change in number of Electrical Tripping Risk hazards
Electrical tripping injury hazards will be identified using the CHASE Tool. Fail criteria include: "You have electrical extension cords that pose a trip and fall hazard."
Time frame: Baseline, 1 month, 3 months
Change in number of Hot Water Burn hazards
Hot water burn injury hazards will be identified using the CHASE Tool. Fail criteria include: "You need to retest the hot water temperature to make sure it is a safe temperature", and "You need a new water heater tank installed."
Time frame: Baseline, 1 month, 3 months
Change in number of Window Fall hazards
Window fall injury hazards will be identified using the CHASE Tool. Fail criteria include: "Not all of your windows at or above the second level of the home have window stops or guards."
Time frame: Baseline, 1 month, 3 months
Change in number of Accidental Strangulation hazards
Accidental strangulation injury hazards will be identified using the CHASE Tool. Fail criteria include: "Your blinds pose a hazard (you do not have cord protectors or cordless blinds/shades)", and "Your blinds/curtains are not cordless, cord protected, or cord unprotected but inaccessible to the child."
Time frame: Baseline, 1 month, 3 months
Change in number of Stair Fall hazards
Stair fall injury hazards will be identified using the CHASE Tool. Fail criteria include: "Your interior stairs are unsafe", "Your carpet is loose", "Your handrails are defective", and "Your railings are defective."
Time frame: Baseline, 1 month, 3 months .
Change in number of Bathroom Fall hazards
Bathroom fall injury hazards will be identified using the CHASE Tool. Fail criteria include: "Your shower or tub floor surface needs to be deep cleaned before non-slip decals can be applied", "Your shower or tub floor surface needs to be cleaned before non-slip decals can be applied", "You do not have grab bars in your bath tub(s)/shower(s)", and "You do not have a secured, structurally sound shower door."
Time frame: Baseline, 1 month, 3 months
Change in number of Protruding Nail hazards
Protruding nails will be identified using the CHASE Tool. Fail criteria include: "You have nails or screws that stick out of the walls and floors that could hurt someone."
Time frame: Baseline, 1 month, 3 months
Change in number of Falling Furniture hazards
Falling furniture injury hazards will be identified using the CHASE Tool. Fail criteria include: "You have an entertainment center(s) \> 3 ft. above the ground that is not secured to the wall", "You have a book case in the room that is not secured to the wall", "You have a flat screen TV in the room that is not secured to the wall", "You have a traditional TV in the room that is not secured to the wall", and "You have a stove that is not secured to the wall or cabinet/counter."
Time frame: Baseline, 1 month, 3 months
Change in number of Stair Gate hazards
Stair gate injury hazards will be identified using the CHASE Tool. Fail criteria include: "You do not have a stair gate installed at the top or bottom of the stairs on the 2nd, and if applicable, 3rd floor", "Not all the stair gates at the top of the stairs are hardware mounted", and "The basement does not have a stair gate at the bottom of the stairs and the top of the stairs, if there is no door at the top of the stairs."
Time frame: Baseline, 1 month, 3 months
Cost of installing injury prevention measures
Determine the costs of the injury prevention measures completed by residents and/or professional providers.
Time frame: 1 month, 3 months
Change in participants' self-reported rates of experienced barriers and facilitators to incorporating injury prevention tools in their home.
The Health Belief Model Questionnaire will be used to determine the feasibility of incorporating injury prevention into residential programs. Feasibility will be measured by participants' self-reported rates of experienced barriers and facilitators to incorporating injury prevention tools in their home.
Time frame: Baseline, 1 month, 3 months
Change in qualitative descriptions of participants' confidence to make and maintain injury prevention measures in their home.
The Follow-Up Interview will be used to understand the consistency of implementing and maintaining the injury prevention measures across participants. Consistency will be measured by participants' qualitative descriptions of their confidence to make and maintain the changes.
Time frame: 1 month, 3 months
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