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. Author manuscript; available in PMC: 2020 Feb 21.
Published in final edited form as: Eur Respir J. 2018 Oct 10;52(4):1801118. doi: 10.1183/13993003.01118-2018

Table 3.

Pairwise correlations of variables associated with lung disease.

PRAGMA-%Bx PMNs (%) MetO (nM) %OxMet MPO (μg/ml)
PRAGMA-%Dis n = 24 n = 23 n = 24 n = 24 n = 23
ρ = 0.726 ρ = 0.502 ρ = 0.582 ρ = 0.437 ρ = 0.706
p = 5.8 × 10−5 p = 0.0146 p = 0.0029 p = 0.0286 p = 1.7 × 10−4
PRAGMA-%Bx n = 23 n = 24 n = 24 n = 23
ρ = 0.6742 ρ = 0.698 ρ = 0.665 ρ = 0.752
p = 4.2 × 10−4 p = 1.5 ×10−4 p = 3.9 × 10−4 p = 3.5×10−5
PMNs (%) n = 23 n = 23 n = 22
ρ = 0.569 ρ = 0.594 ρ = 0.656
p = 0.0046 p = 0.0028 p = 0.0092
MetO (nM) n = 24 n = 23
ρ = 0.860 ρ = 0.803
p = 7.2 × 10−8 p = 3.9 × 10−6
%OxMet n = 23
ρ = 0.837
p = 6.4 × 10−7

Pairwise Spearman correlation results are shown for the listed variables. Note that the variable pairs of PRAGMA-%Dis and PRAGMA-%Bx and that of MetO and %OxMet are not independent (PRAGMA-%Bx contributes directly to PRAGMA-%Dis, and MetO contributes directly to %OxMet).