Table 5.

Logistic regresyon analysis of variables in COPD

Variable	β	SE	p	Exp (β)	95% CI
					Lower	Upper
Age	0.044	0.004	0.311	1.045	0.933	1.022
Sex
Female (ref)
Male	1.250	0.979	0.202	3.490	0.512	23.78
Smoking
No	−5.290	1.001	0.001	0.005	0.001	0.036
Yes (ref)
PON	0.004	0.004	0.349	1.004	0.996	1.012
ARE	−0.024	0.023	0.311	0.977	0.933	1.022
Phenotype
QQ (ref)
QR	−1.190	1.317	0.366	0.304	0.023	4.016
RR	−2.814	1.167	0.016	0.060	0.006	0.590

−2 log-likelihood: 69.585; Chi-square:101.799; (p:0.001) Nagelkerke R²: 0.74