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BACKGROUND Prior studies suggest that allergist care improves asthma outcomes, but many of these studies have methodological shortcomings. OBJECTIVE We sought to compare patient-based and medical utilization outcomes in randomly selected asthmatic patients cared for by allergists versus primary care providers. METHODS A random sample of 3568 patients(More)
There has been increasing public attention to the potential health risks of mold exposure, particularly in wet buildings. A variety of molds has been isolated from both damaged homes and businesses, including agents that secrete toxigenic materials. One area that is attracting particular notice is the relative toxigenic potential of mycotoxins. Although(More)
Effective management of populations with asthma requires methods for identifying patients at high risk for adverse outcomes. The aim of this study was to develop and validate prediction models that used computerized utilization data from a large health-maintenance organization (HMO) to predict asthma-related hospitalization and emergency department (ED)(More)
BACKGROUND The ratio of controller medication to total asthma medications has been related to asthma utilization outcomes, but its relationship to patient-centered outcomes has not been explored. METHODS Surveys that included validated asthma quality-of-life, control, and symptom severity tools were completed by a random sample of 2,250 health maintenance(More)
BACKGROUND Risk stratification is used to identify patients with asthma at increased risk of experiencing morbidity and resource utilization. Validated psychometric tools are infrequently studied sources of data for this purpose. PURPOSE To evaluate 4 types of validated psychometric tools as predictors for subsequent asthma utilization and determine their(More)
BACKGROUND Asthma control has been defined clinically by using validated tools, but an asthma control scale using administrative data has not been reported. OBJECTIVE We sought to validate a beta-agonist asthma control scale derived from administrative data. METHODS Surveys that included validated asthma symptom and control tools were completed by a(More)
BACKGROUND Validated psychometric tools measuring quality of life, asthma control, and asthma severity have been developed, but their relationships with each other and with other important patient-centered outcomes have not been rigorously assessed. OBJECTIVE To use factor analysis to evaluate the relationships of these validated tools with each other and(More)
We conducted a case-control study among members of Kaiser Permanente Northern California (KPNC) born between 1980 and 2003 to determine the prevalence of immune-mediated conditions in individuals with autism, investigate whether these conditions occur more often than expected, and explore the timing of onset relative to autism diagnosis. Cases were children(More)
OBJECTIVE To validate a risk stratification scheme using computerized pharmacy data to predict emergency hospital utilization for persistent asthma. STUDY DESIGN Retrospective cohort. METHODS The development sample consisted of 1079 HMO members aged 18 to 56 years with persistent asthma. The scale used medication cut-points as predictors for next-year(More)