Lung Function before and Two Days after Open-Heart Surgery

Table 2

The variables associated with postoperative lung volumes (expressed as percent of predicted values), (𝑛=107). Univariate analyses.

Independent variables	Dependent variables
	VC	FEV1	IC
	𝐵 (95% CI)	𝐵 (95% CI)	𝐵 (95% CI)
Males versus female	−4.90 (−10.4, 0.59)^†	—	−19.4 (−25.4, −13.5)^*
Age/10 years	3.00 (0.53, 5.50)^*	3.03 (0.40, 5.70)^*	—
BMI weight (kg)/length m^2	—	−0.78 (−1.42, −0.13)^*	−0.70 (−1.49, 0.08)^†
CABG versus valve surgery	—	5.29 (0.58, 9.99)^*	—
ICU time/4 h	—	−0.34 (−0.66, −0.24)^*	—

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. ^*𝑃<0.05, ^†𝑃= 0.05–0.10, 𝐵: regression coefficient, CI: confidence interval.