Decreased expression of the NF-κB family member RelB in lung fibroblasts from Smokers with and without COPD potentiates cigarette smoke-induced COX-2 expression

Table 3 Pearson correlation coefficients between biomarkers and clinical variables

Variable 1	Variable 2	Correlation coefficient	95% CI	P-value
RelB expression	Cox-2 expression	0.86	0.78 - 0.91	<0.001**
RelB expression	146a	−0.08	−0.32 - 0.16	0.509
RelB expression	FEV₁ L	−0.04	−0.28 - 0.21	0.768
RelB expression	FEV₁% predicted	0.05	−0.19 - 0.29	0.671
RelB expression	FEV₁/FVC	0.10	−0.15 - 0.34	0.418
Cox-2 expression	146a	−0.12	−0.36 - 0.12	0.323
Cox-2 expression	FEV₁ L	0.01	−0.24 - 0.25	0.931
Cox-2 expression	FEV₁% predicted	0.09	−0.16 - 0.33	0.475
Cox-2 expression	FEV₁/FVC	0.10	−0.15 - 0.34	0.428
146a	FEV₁ L	−0.20	−0.42 - 0.05	0.114
146a	FEV₁% predicted	−0.28	−0.49 -0.04	0.026*
146a	FEV₁/FVC	−0.23	−0.45 - 0.01	0.065

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