Table 3: The variables associated with postoperative lung volumes (expressed as percent of predicted values), ( ). Multivariate analyses.

Independent variablesDependent variables
VCFEV1IC
(95% CI) (95% CI) (95% CI)

Male versus female−5.35 (−10.7, 0.004)−20.0 (−25.8, −14.2)*
Age/10 years3.17 (0.72, 5.62)*1.70 (−1.08, 4.49)
BMI weight (kg)/length m2−0.58 (−1.24, 0.74)−0.86 (−1.51, −0.21)*
CABG versus valve surgery3.63 (−1.25, 8.16)
ICU time/4 h−0.24 (−0.56, 0.08)
0.070.090.33

VC: vital capacity, FEV1: forced expiratory volume in 1 second, IC: inspiratory capacity, BMI: body mass index, type of surgery (CABG: coronary artery bypass grafting, valve: aorta, mitralis, or tricuspidalis valve surgery), ICU: intensive care unit. * , : regression coefficient, CI: confidence interval, : adjusted square.