Epidemiology of Home Allergens and Asthma Study (EHAAS)
EHAAS is an ongoing longitudinal birth cohort study of the effects of environmental exposures on the risk of allergy and asthma in children born to parents with histories of allergies and/or asthma. Between September 1994 and June 1996, families from metropolitan Boston (MA) were recruited at a major Boston hospital during the immediate post-natal period after the birth of the index child. Just over 500 children were enrolled in the study. Every 2 months, the primary caregiver was asked a follow-up telephone questionnaire.
Study design
Cohort
Number of participants at first data collection
505 (participants)
Age at first data collection
6 - 10 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1994
Primary Institutions
Brigham and Women’s Hospital (BWH)
Harvard Medical School (HMS)
Harvard University
University of Virginia (UVA)
Profile paper DOI
Funders
National Institute of Allergy and Infectious Diseases (NIAID)
National Institutes of Health (NIH)
Ongoing?
Yes
Data types collected
- Interview – phone
- Physical environment assessment (e.g. pollution, mould)
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-completed questionnaire – unspecified
- None
- None
- None
Engagement
Keywords
Consortia and dataset groups
