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Functional Data Analysis To Guide A Conditional Likelihood Regression In A Case-Crossover Study Investigating Whether Social Characteristics Modify The Health Effects Of Air Pollution, Juana Maribel Herrera Hernandez

Open Access Theses & Dissertations

In this study we are focused on exploring whether social characteristics modify the relationship between air pollution and hospitalizations due to asthma or chronic pulmonary obstructive disease (COPD) in El Paso, Tx. The case-crossover design with conditional regression analysis was used, here the controls and the case are the same subject at different

times and has the advantage of removing confounding by permanently confounding factors. Social characteristics are included in the models as interactions with the pollutants, variables included are age, sex, ethnicity and insurance status as indicator for the socio-economic status. The pollutant's lags were chosen using the historical …

The Association Of Vitamin D Status With Allergy And Asthma In Children: Findings From The National Health And Nutrition Examination Survey (Nhanes) 2005-2006, Silvia Flores

Open Access Theses & Dissertations

About 23 million people, including almost 10 million children, have asthma in the United States. Asthma prevalence is higher among families with lower incomes living at the US/ Mexico Border and represents the most common serious chronic diseases of childhood. It is the third-ranking cause of hospitalization among children under 15, (De Frances, 2007) as well as the cause of seven million physician visits and nearly 200,000 hospitalizations every year. An average of one out of every ten school-aged children has asthma and, 13 million school days are missed each year due to asthma symptoms (Akinbami, 2006). According to the …

Assessment Of Intra-Urban Traffic-Related Air Pollution On Asthmatic Children's Exposure At Schools In The Paso Del Norte Region, Amit Ugamraj Raysoni

Open Access Theses & Dissertations

Traffic-related air pollution can be a major public health concern in any urban area. This problem is compounded in the Paso del Norte region that has experienced rapid economic growth, and a substantial number of people living in close vicinity of major roadways. The desert surroundings, arid weather, frequent temperature inversions, heavy border traffic at the international ports of entry between El Paso and Ciudad Juárez, and poorly maintained vehicle fleet further exacerbates this problem. A growing body of air quality and epidemiologic research has discerned the linkage between traffic emissions and respiratory disorders.

Initial health investigations in the Paso …