Skip to main content
. 2021 Feb 16;299(1):222–231. doi: 10.1148/radiol.2021203531

Figure 2b:

Differences in progression rate by outcome. Annualized rate of change in volume-adjusted lung density measured at the 15th percentile (referred to as lung density perc15) of the CT lung density histogram by mortality in the (a) COPDGene cohort (those with emphysema at baseline) and in the (b) Evaluation of Chronic Obstructive Pulmonary Diseaase Longitudinally to Identify Predictive Surrogate End-points (ECLIPSE) cohort (those with emphysema at baseline). Differences between rates by outcome assessed by using t tests.

Differences in progression rate by outcome. Annualized rate of change in volume-adjusted lung density measured at the 15th percentile (referred to as lung density perc15) of the CT lung density histogram by mortality in the (a) COPDGene cohort (those with emphysema at baseline) and in the (b) Evaluation of Chronic Obstructive Pulmonary Diseaase Longitudinally to Identify Predictive Surrogate End-points (ECLIPSE) cohort (those with emphysema at baseline). Differences between rates by outcome assessed by using t tests.