Skip to main content

Table 4 QCT-based lung functions between non-dust-exposed subjects and dust-exposed subjects

From: Quantitative CT-based structural alterations of segmental airways in cement dust-exposed subjects

QCT-based lung functionsNDE subjects (n = 164)DE subjects (n = 41)P value
TLC, liter3.902(1.030)3.477(0.970)< 0.001
FRC, liter2.163(0.705)1.977(0.741)< 0.05
IC, liter1.794(0.842)1.543(0.723)< 0.005
JacobianTotal1.690(0.364)1.617(0.348)0.058
LUL1.601(0.346)1.558(0.355)0.258
LLL1.884(0.452)1.900(0.469)0.734
RUL1.581(0.338)1.440(0.268)< 0.001
RML1.465(0.256)1.391(0.224)< 0.005
RLL1.861(0.436)1.834(0.414)0.562
Emph%0.017(0.023)0.010(0.013)< 0.005
fSAD%0.087(0.116)0.080(0.106)0.554
  1. Values are presented as mean (SD); Emph% Percent emphysema; FRC Functional residual volume, fSAD% Percent functional small airway disease, IC Inspiratory capacity, TLC Total lung capacity, QCT Quantitative computed tomography, LLL Left lower lobe, LUL Left upper lobe, RLL Right lower lobe, RML Right middle lobe, RUL Right upper lobe; The values are presented with absolute values in TLC, FRC, and IC, not predicted values