Loading

wait a moment

Prevalence and Correlates of Airway Obstruction in a Community-Based Sample of AdultsProcedures: Spirometric determinations

Prevalence and Correlates of Airway Obstruction in a Community-Based Sample of AdultsProcedures: Spirometric determinationsDeficiency of a1 antitrypsin, which is a well-known susceptibility factor for emphysema in Western countries, is rarely found in Korea, China, and Japan. No Z-type variant has been found in subjects in these latter three countries, or in Japanese-Americans in Hawaii as well.- Ethnic differences in the morbidity and mortality from obstructive airway disease also have been described. Individuals from the United Kingdom are more susceptible to airway obstruction than are those from eastern Europe and North America. Mexican-American women tend to have less of a chance of dying from COPD than non-Hispanic white women (OR, 0.36; 95% CI, 0.18 to 0.72). canadian health mall

While the overall estimated prevalence of airway obstruction in this report could be lower than the actual prevalence (since men and current and former smokers were more reluctant to be study participants), prevalence is also likely to be underreported elsewhere. We believe that this is true because, in general, other cohorts also have experienced the same “healthy recruitment effects.”, As a consequence, while relative comparisons may still be meaningful, the true prevalence of airway obstruction is likely to be underestimated on a worldwide basis. Of course, this needs further clarification, as does the continued need to encourage population-based initiatives that better characterize the true prevalence of airway obstruction,
To estimate the true prevalence of airway obstruction, it is necessary to measure the expiratory airflow of all individuals with spirometry. A strength of the current study is that all pulmonary function tests were performed in a hospital setting by trained and experienced pulmonary function technicians. Data on the epidemiology of the disease in population-based studies that include spirometric determinations, however, are rare.