RECLEAN Pilot Study
- Conditions
- Lead Poisoning
- Interventions
- Other: In-home assessment planBehavioral: Family educational sessionBehavioral: Worker take home prevention trainingOther: D-LEAD cleaner products
- Registration Number
- NCT04498845
- Lead Sponsor
- Boston University
- Brief Summary
This is an exposure assessment pilot study tailored for families of construction workers living with a child. The investigators will compare home dust metal levels and resident's blood metal levels before and after an educational and environmental intervention. A baseline and a post intervention period assessment will be conducted with home and car lead inspections and risk assessments with collection of dust, urine, blood and toenail samples and a survey.
Objectives of this research are to:
1. To characterize pre-intervention home exposures to lead and other metals in households with one construction worker inhabitant living with a child, by assessing household members' biospecimens and home dust metal levels.
2. To develop and evaluate customized home interventions (including environmental and educational approaches) to reduce metals exposure in three tiers of intervention.
3. To characterize home exposures to lead and other metals post intervention and determine adapted behaviors and whether the degree of metals exposure reduction (including take home exposures) in the households depends on the level of intervention.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- TERMINATED
- Sex
- All
- Target Recruitment
- 35
Construction workers must meet all of the following inclusion criteria:
- 18 years of age or older
- works full time in construction with high risk for metal exposures
- lives in the Greater Boston area
- lives with at least 1 child household member 1 year of age or older (does not have to be a child of the worker but interested in participating in the study)
- speaks English or Spanish.
Household resident participants must meet all of the following inclusion criteria:
- child (1 - 17 years of age) or adult (18 years of age or older)
- lives in the Greater Boston area with the worker participating in this study
- speaks English or Spanish.
None
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Advanced intervention group In-home assessment plan Participants in the advanced intervention group will have a 1-hour in-home assessment plan and educational session, refer worker to a 1-hr worker take home prevention educational session, and provision of D-LEAD all-purpose cleaner and laundry detergent. Basic intervention group Family educational session Participants in the basic intervention group will have a 1-hour in-home assessment plan and family educational session. Intermediate intervention group In-home assessment plan Participants in the intermediate intervention group will have a 1-hour in-home assessment plan and educational session and refer worker to a 1-hr worker take home prevention educational session. Intermediate intervention group Worker take home prevention training Participants in the intermediate intervention group will have a 1-hour in-home assessment plan and educational session and refer worker to a 1-hr worker take home prevention educational session. Basic intervention group In-home assessment plan Participants in the basic intervention group will have a 1-hour in-home assessment plan and family educational session. Intermediate intervention group Family educational session Participants in the intermediate intervention group will have a 1-hour in-home assessment plan and educational session and refer worker to a 1-hr worker take home prevention educational session. Advanced intervention group Family educational session Participants in the advanced intervention group will have a 1-hour in-home assessment plan and educational session, refer worker to a 1-hr worker take home prevention educational session, and provision of D-LEAD all-purpose cleaner and laundry detergent. Advanced intervention group Worker take home prevention training Participants in the advanced intervention group will have a 1-hour in-home assessment plan and educational session, refer worker to a 1-hr worker take home prevention educational session, and provision of D-LEAD all-purpose cleaner and laundry detergent. Advanced intervention group D-LEAD cleaner products Participants in the advanced intervention group will have a 1-hour in-home assessment plan and educational session, refer worker to a 1-hr worker take home prevention educational session, and provision of D-LEAD all-purpose cleaner and laundry detergent.
- Primary Outcome Measures
Name Time Method Change in lead levels from household vacuumed dust Baseline, 5 months Dust samples will be collected by vacuuming the entire home floors and surfaces into a clean sampling thimble. Participants will be asked not to vacuum the house, if possible, at least one week prior to the scheduled home visit, tso that enough dust is available for testing.
Blood metal levels from adult household members at baseline Baseline During each home visit, a blood sample will be collected from each participant. The frozen blood samples will be sent to the CDC metals laboratory for analysis. Blood will be analyzed using CDC Method for blood multi-element panel, which includes cadmium (Cd), lead (Pb), manganese (Mn), and mercury (Hg).
Change in lead levels in dust from household wiped surfaces Baseline, 5 months Dust samples will be collected in the home from wiping up to ten 1ft by 1ft surfaces in the home and three wipes in the car following HUD methods from smooth surfaces likely to be contaminated by the worker and that likely expose other family members such as the laundry area, entry walkway, and living room area, as well as areas with potential lead like window sills. Investigators will use SKC 550-002 colorimetric wipe kit for lead on all wipes in order to obtain immediate color response in the presence of lead (reddish color suggests lead). Wipes will be then stored to be sent to the laboratory for quantitative elemental analysis.
Blood metal levels from child household members at baseline Baseline During each home visit, a blood sample will be collected from each participant. The frozen blood samples will be sent to the CDC metals laboratory for analysis. Blood will be analyzed using CDC Method for blood multi-element panel, which includes cadmium (Cd), lead (Pb), manganese (Mn), and mercury (Hg).
Blood metal levels from adult household members at 5 months 5 months During each home visit, a blood sample will be collected from each participant. The frozen blood samples will be sent to the CDC metals laboratory for analysis. Blood will be analyzed using CDC Method for blood multi-element panel, which includes cadmium (Cd), lead (Pb), manganese (Mn), and mercury (Hg).
Blood metal levels from construction workers at baseline Baseline, 5 months During each home visit, a blood sample will be collected from each participant. The frozen blood samples will be sent to the CDC metals laboratory for analysis. Blood will be analyzed using CDC Method for blood multi-element panel, which includes cadmium (Cd), lead (Pb), manganese (Mn), and mercury (Hg).
Blood metal levels from construction workers at 5 months Baseline, 5 months During each home visit, a blood sample will be collected from each participant. The frozen blood samples will be sent to the CDC metals laboratory for analysis. Blood will be analyzed using CDC Method for blood multi-element panel, which includes cadmium (Cd), lead (Pb), manganese (Mn), and mercury (Hg).
Blood metal levels from child household members at 5 months 5 months During each home visit, a blood sample will be collected from each participant. The frozen blood samples will be sent to the CDC metals laboratory for analysis. Blood will be analyzed using CDC Method for blood multi-element panel, which includes cadmium (Cd), lead (Pb), manganese (Mn), and mercury (Hg).
- Secondary Outcome Measures
Name Time Method Change in workers' knowledge about household lead exposure Baseline, 1 hour after worker educational session Investigator developed pre- and post-assessments will be administered to participating workers after the worker educational session to evaluate their knowledge regarding take-home lead exposure, especially as it relates to their job in construction, and strategies to prevent or reduce that potential for exposure. Higher number of correct answers are associated with greater knowledge.
Change in behaviors of household members 1 month, 5 months Self-reported behaviors of household members regarding prevention of lead exposure will be assessed from responses to an investigator developed survey that will be administered after the first and second home visits. The follow-up survey will ask questions on the behavior change of participants since the first home visit and how successfully they have adhered to their home action plan and to describe any challenges they may have faced.
Change in household members' knowledge about lead exposure Baseline, 1 hour after in-home family educational session Investigator developed pre- and post-assessments will be administered to participating household members after the in-home family educational session to evaluate their knowledge regarding potential for exposure to lead in their home environment, especially as it relates to the worker's job in construction, and strategies to prevent or reduce that potential for exposure. Higher number of correct answers are associated with greater knowledge.
Trial Locations
- Locations (1)
Boston University School of Public Health
🇺🇸Boston, Massachusetts, United States