Table 5.

The association between wood dust exposure and lung function and oxidative stress parameters before and after controlling for confounders

Parameter	Crude regression coefficient (95% CI)	p-valuea	Adjusted regression coefficient (95% CI)	p-valueb
FVC (%)	−4.80 (−9.03, −0.54)	0.027	−4.35 (−8.81, 0.10)	0.05
FEV1 (%)	−6.15 (−10.66, −1.64)	0.008	−5.44 (−10.05, −0.83)	0.02
FEV1/FVC (%)	−5.97 (−10.34, −1.60)	0.008	−5.80 (−10.35, −1.24)	0.01
FEF 25–75 (%)	−2.09 (−7.11, 2.93)	0.411	−3.64 (−8.66, 1.38)	0.15
PEF (%)	−2.51 (−6.91, 1.89)	0.260	−3.39 (−7.83, 1.05)	0.13
SOD (U/ml)	−1.37 (−2.34, −0.39)	0.006	−1.43 (−2.45, −0.40)	0.007
TAC (mM)	−0.32 (−0.42, −0.23)	<0.001	−0.32 (−0.42, −0.22)	< 0.001
MDA (µM)	1.19 (0.54, 1.85)	< 0.001	1.23 (0.53, 1.93)	0.001

^aIndependent sample t‑test

^bLinear regression analysis