Outdoor Allergen Exposure, Sensitivity, and Acute Asthma

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

1000 participants

Study Classification

OBSERVATIONAL

Study Start Date

2001-07-31

Brief Summary

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To examine the role of outdoor pollen grains and fungal spores in the exacerbation of asthma and to produce forecasting models to predict days of high concentration.

Detailed Description

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Asthma is a growing problem, and outdoor allergens play a role in exacerbation of many cases. A clearer understanding of this role and its magnitude, and a means of controlling the effects of outdoor allergen exposures is needed. We propose Poisson time-series and conditional panel studies to test these hypotheses: 1) The incidence of acute asthma attacks, as measured by urgent care inhalation treatments and hospitalizations for asthma, has a dose-dependent relationship with exposure to specific outdoor allergens; 2) Specific sensitization to outdoor allergens is a risk factor for having an acute attack; and 3) Exposure conditions that lead to acute asthma attacks can be forecast, creating an opportunity to reduce asthma morbidity and mortality ny targeting pretreatment and/or exposure controls.

Conditions

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Asthma

Keywords

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Asthma Allergens

Study Design

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Observational Model Type

DEFINED_POPULATION

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

Must be a member of the Fallon HMO and be treated for acute asthma exacerbation.

Minimum Eligible Age

15 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Locations

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Fallon Clinic and Fallon Community Health Plan

Worcester, Massachusetts, United States

Site Status

Countries

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United States

Other Identifiers

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9744-CP-001

Identifier Type: -

Identifier Source: org_study_id