View clinical trials related to Asthma.
Filter by:To determine whether airway inflammation secondary to inhalation of specific allergens and other environmental agents and functional imbalance of the autonomic nervous system played important roles in asthma and chronic bronchitis.
To provide information on morbidity and health care utilization for asthma for a large, well-defined population over a 20 year period.
To prospectively identify factors that influence the rate of decline in pulmonary function and to identify predictors of chronic obstructive lung disease (COLD) and asthma in a population sample of older adults.
To identify risk factors which predispose individuals to develop asthma and other manifestations of allergic disease on exposure to laboratory animals in the workplace.
From 1981 to 1991, to characterize the role of allergy and airways responsiveness in modifying growth of lung function in children and young adults in a community-based random population, the Childhood Respiratory Study in East Boston. From 1992 to 1997, to examine the relationship of respiratory symptoms and illnesses, cigarette smoking, airways responsiveness, and markers of inflammation to growth and decline in lung function in two well-characterized and investigated community-based populations of children and adults, the Childhood Respiratory Study in East Boston and the Normative Aging Study.
To continue to evaluate risk factors heretofore determined to be important predictors of chronic respiratory symptoms, diagnosis of asthma, and alterations in expected levels of lung function in children and adolescents in a new population of young adult women.
To determine the natural history, etiology, and interrelationships of emphysema, chronic bronchitis, asthma, and related airways obstructive diseases. Also, to determine the relationship of acute lower respiratory tract illnesses in infants and children to the development of subsequent chronic lung disorders.
To identify risk factors for idiopathic dilated cardiomyopathy and to examine prognostic factors over a follow-up period of two to three years.
To determine morbidity and mortality from cardiovascular disease among American Indians and to compare cardiovascular disease risk factor levels among Indian groups living in different geographic areas.
To investigate coronary heart disease and stroke among American men of Japanese ancestry who were living on the island of Oahu in 1965. Morbidity and mortality surveillance of the original cohort is continuing.