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Table 3 Segmental airway features at specific regions

From: Imaging-based clusters in former smokers of the COPD cohort associate with clinical characteristics: the SubPopulations and intermediate outcome measures in COPD study (SPIROMICS)

Variable

Region

Cluster 1

(N = 100)

Cluster 2

(N = 80)

Cluster 3

(N = 141)

Cluster 4

(N = 85)

P value

Healthy

(N = 69)

θ

Trachea

91.1

(12.3)

93.0

(10.1)

91.1

(12.8)

86.5

(11.4)

<  0.001

91.8

(10.9)

Cr

sLUL

0.961

(0.014)

0.959

(0.015)

0.956

(0.012)

0.943

(0.021)

< 0.0001

0.958

(0.013)

WT*

sLUL

0.571

(0.035)

0.564

(0.034)

0.546

(0.035)

0.536

(0.042)

< 0.0001

0.561

(0.036)

Dh*

sLUL

0.273

(0.028)

0.256

(0.029)

0.236

(0.024)

0.230

(0.033)

< 0.0001

0.264

(0.031)

  1. Cr, WT*, and Dh* were only presented at sLUL, but overall trends between clusters were consistent in different locations
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Respiratory Research

ISSN: 1465-993X

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