Determinants of Respiratory Health in Young Adults
Primary Purpose
Lung Diseases
Status
Completed
Phase
Locations
Study Type
Observational
Intervention
Sponsored by

About this trial
This is an observational trial for Lung Diseases
Eligibility Criteria
No eligibility criteria
Sites / Locations
Outcomes
Primary Outcome Measures
Secondary Outcome Measures
Full Information
NCT ID
NCT00005361
First Posted
May 25, 2000
Last Updated
May 12, 2016
Sponsor
National Heart, Lung, and Blood Institute (NHLBI)
1. Study Identification
Unique Protocol Identification Number
NCT00005361
Brief Title
Determinants of Respiratory Health in Young Adults
Study Type
Observational
2. Study Status
Record Verification Date
June 2000
Overall Recruitment Status
Completed
Study Start Date
April 1993 (undefined)
Primary Completion Date
undefined (undefined)
Study Completion Date
March 1998 (Actual)
3. Sponsor/Collaborators
Name of the Sponsor
National Heart, Lung, and Blood Institute (NHLBI)
4. Oversight
5. Study Description
Brief Summary
To measure lung function and respiratory symptom status in a large cohort of healthy, non-smoking 18-22 year old subjects, and relate these measurements to past histories of passive smoke and air pollution exposures.
Detailed Description
BACKGROUND:
While the natural history of human lung function growth and decline has been studied intensively over the past 30 years, relatively few data have been collected during the period in which peak volumetric function is achieved, i.e., around the age of 20. As a result, very little is known about the factors, both demographic and environmental, which influence maximal attained lung function.
DESIGN NARRATIVE:
The longitudinal study collected information on the history of respiratory illness, residential history, parental smoking, socio-economic status and home characteristics via an initial questionnaire administered to cadets enrolling at West Point. A sequence of four annual measurements of lung function (by spirometry), and prior-year respiratory health status and activity patterns was obtained in the spring of each year. Pollution exposures were estimated by matching residential histories with historical pollution data stored at the Environmental Protection Agency. Data on meteorological variables (temperature, relative humidity, wind speed) and altitude were obtained for each residential location. The four annual lung function measurements provided precise estimates of individual mean levels of FVC, FEV1, FEF25-75, PEFR, and flow rates at 50 percent and 75 percent of expired FVC. Subject-specific lung function level was analyzed in relation to history of parental smoking and prior exposure to air pollution using analysis of variance methods, controlling for potential confounding variables. In addition to testing these hypotheses regarding the respiratory effects of passive smoking and air pollution exposure, the study also explored the effects of these exposures on the change in lung function between the ages of 18 and 22 and on respiratory illness and symptom experience while at West Point. Finally, the study established a cohort which could be followed in future years.
The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Lung Diseases
7. Study Design
10. Eligibility
Sex
All
Maximum Age & Unit of Time
100 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
No eligibility criteria
12. IPD Sharing Statement
Citations:
PubMed Identifier
8912760
Citation
Kinney PL, Nilsen DM, Lippmann M, Brescia M, Gordon T, McGovern T, El-Fawal H, Devlin RB, Rom WN. Biomarkers of lung inflammation in recreational joggers exposed to ozone. Am J Respir Crit Care Med. 1996 Nov;154(5):1430-5. doi: 10.1164/ajrccm.154.5.8912760.
Results Reference
background
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Determinants of Respiratory Health in Young Adults
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