The age of study participants averaged 71.7 years. An interquartile range difference in annual PM

exposure of 4.4 μg/m

was associated with 0.13 L lower FVC (95% confidence interval (CI), - 0.22- -0.05, p = 0.003). Emphysema index (mean = 6.36) was higher by 1.13 (95% CI, 0.25-2.02, p = 0.012) and wall area percent (mean = 68.8) was hi…[Read more]