Ignite Creation Date:
2024-05-05 @ 4:52 PM
Last Modification Date:
2024-10-26 @ 9:25 AM
Study NCT ID:
NCT00339573
Status:
COMPLETED
Last Update Posted:
2020-10-08
First Post:
2006-06-19
Brief Title:
National Survey of Lead and Allergen Hazards in Housing
Sponsor:
National Institute of Environmental Health Sciences NIEHS
Organization:
National Institutes of Health Clinical Center CC
Study Overview
Official Title:
National Survey of Lead Hazards and Allergens in Housing
Status:
COMPLETED
Status Verified Date:
2020-10
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
We propose to conduct a scientifically valid descriptive survey to measure the prevalence and levels of lead in dust soil and paint and the prevalence and levels of various indoor allergens in floor and bedding dust in the nations housing stock The survey strategy is a population-based multi-stage area probability sample designed to represent all 50 states The survey will include approximately 1000 homes in at least 100 primary sampling units PSU a metropolitan area or cluster of counties Residents of candidate participant housing units HUs will initially be contacted by a letter to introduce and provide a brief explanation of the study A field interviewer will then visit each candidate HU to screen and recruit eligible units into the study A short Screening Questionnaire will be administered to an adult HU resident and an invitation will be extended to those HUs that are eligible to participate in the study A field data collection visit will be scheduled for the following week at the residents convenience The collection visit will be conducted by two member team including the same field interviewer that will conduct the screeningrecruiting visit and will consist of administration of an informed consent form and Data Collection Questionnaire completion of home observation forms collection of interior dust and exterior soil samples and conduct of nondestructive paint lead analysis on both interior and exterior walls Soil and dust samples will be shipped to analytical laboratories for lead and allergen analysis Extensive survey design procedure and reporting details are provided in the National Survey Lead Hazards and Allergens in Housing Protocol and Sample Design Report Attachment A It is anticipated that this study will provide allergen-specific data regarding 1 housing conditions demographic factors and climate to facilitate evaluation of regional ethnic socioeconomic and housing characteristic differences in the indoor allergen burden 2 an estimate of indoor allergen exposure in the US population 3 baseline data that can be used to stimulate future studies which attempt to correlate allergen exposure to disease outcome The study will yield lead hazard data to 1 estimate the number and percent of homes with dust and soil lead levels above selected thresholds 2 identify sources of lead in dust in housing 3 permit future analysis of lead hazard control strategies an costs including associated policy and regulatory guidelines
Detailed Description:
We propose to conduct a scientifically valid descriptive survey to measure the prevalence and levels of lead in dust soil and paint and the prevalence and levels of various indoor allergens in floor and bedding dust in the nations housing stock The survey strategy is a population-based multi-stage area probability sample designed to represent all 50 states The survey will include approximately 1000 homes in at least 100 primary sampling units PSU a metropolitan area or cluster of counties Residents of candidate participant housing units HUs will initially be contacted by a letter to introduce and provide a brief explanation of the study A field interviewer will then visit each candidate HU to screen and recruit eligible units into the study A short Screening Questionnaire will be administered to an adult HU resident and an invitation will be extended to those HUs that are eligible to participate in the study A field data collection visit will be scheduled for the following week at the residents convenience The collection visit will be conducted by a two member team including the same field interviewer that will conduct the screeningrecruiting visit and will consist of administration of an informed consent form and Data Collection Questionnaire completion of home observation forms collection of interior dust and exterior soil samples and conduct of nondestructive paint lead analyses on both interior and exterior walls Soil and dust samples will be shipped to analytical laboratories for lead and allergen analysis Extensive survey design procedure and reporting details are provided in the National Survey Lead Hazards and Allergens in Housing Protocol and Sample Design Report It is anticipated that this study will provide allergen-specific data regarding 1 housing conditions demographic factors and climate to facilitate evaluation of regional ethnic socioeconomic and housing characteristic differences in the indoor allergen burden 2 an estimate of indoor allergen exposure in the US population 3 baseline data that can be used as a reference point for future allergen surveys and 4 a database that can be used to stimulate future studies which attempt to correlate allergen exposure to disease outcome The study will yield lead hazard data to 1 estimate the number and percent of homes with dust and soil lead levels above selected thresholds 2 identify sources of lead in dust in housing 3 permit future analysis of lead hazard control strategies and costs including associated policy and regulatory guidelines
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| OH98-E-N033 | None | None | None |