A cross-sectional study on the pulmonary function of residents in two urban areas with different PM 10 concentrations: data from the fourth Korea national health and nutrition examination survey (KNHANES) 2007 –2009

ConclusionThe present analysis was based on cross-sectional data collected at one point in time. Therefore, unlike longitudinal studies, it does not establish a clear causal association between the variables. Nevertheless, this study found that pulmonary function among subjects residing in Seoul was significantly decreased compared to that of subjects residing in Jeju.
Source: Annals of Occupational and Environmental Medicine - Category: Occupational Health Source Type: research