BACKGROUND
SICAS-2 is the interventional phase of the School Inner-City Asthma Study (SICAS 1), an NIH-funded, prospective study evaluating school and classroom specific environmental risk factors and asthma morbidity in the Northeast. SICAS-2 is a randomized intervention trial to evaluate the effectiveness of two environmental interventions, one classroom-based (High Frequency Particulate Air (HEPA) filter) and the other school wide (Integrated Pest Management), to reduce asthma allergens.