From: Forced oscillations and respiratory system modeling in adults with cystic fibrosis
 | FVC (L) | FVC (%) | FEV 1 (L) | FEV 1 (%) | FEV 1 /FVC | FEF 25–75% (L/s) | FEF 25–75% (%) | FEF/FVC |
---|---|---|---|---|---|---|---|---|
FOT parameters | Â | Â | Â | Â | Â | Â | Â | Â |
R0 (cmH2O/L/s) | −0.48** | ns | −0.58* | −0.44* | −0.53** | −0.55** | −0.50** | −0.48** |
R4 (cmH2O/L/s) | −0.51*** | −0.41** | −0.66**** | −0.61**** | −0.64**** | −0.68**** | −0.66**** | −0.61**** |
S (cmH2O/L/s2) | 0.61*** | 0.56** | 0.74**** | 0.74**** | 0.79**** | 0.72**** | 0.73**** | 0.70**** |
fr (Hz) | −0.63*** | −0.48* | −0.73**** | −0.64** | −0.65** | −0.69*** | −0.67** | −0.61** |
Xm (cmH2O/L/s) | 0.69**** | 0.63**** | 0.78**** | 0.74**** | 0.77**** | 0.69**** | 0.69**** | 0.68**** |
Ax (cmH2O/L) | −0.59**** | −0.59**** | −0.72**** | −0.74**** | −0.76**** | −0.65**** | −0.66**** | −0.63**** |
Cdyn (L/cmH2O) | 0.80**** | 0.65*** | 0.81**** | 0.71*** | 0.59* | 0.70**** | 0.64*** | 0.56** |
Zrs (cmH2O/L/s) | −0.69**** | −0.53** | −0.76**** | −0.66*** | −0.70**** | −0.67** | −0.63*** | −0.60** |
Compartmental model | Â | Â | Â | Â | Â | Â | Â | Â |
R (cmH2O/L/s) | ns | ns | ns | ns | ns | ns | ns | ns |
Rp (cmH2O/L/s) | −0.50*** | −0.55**** | −0.64**** | −0.70**** | −0.74**** | −0.59**** | −0.60**** | −0.59**** |
Rt (cmH2O/L/s) | −0.43** | −0.35* | −0.59**** | −0.56**** | −0.63**** | −0.62**** | −0.61**** | −0.58**** |
I (cmH2O/L/s2) | ns | ns | 0.32* | ns | 0.51**** | 0.36** | 0.40** | 0.44** |
C (mL/cmH2O) | 0.76**** | 0.68**** | 0.79**** | 0.74**** | 0.60**** | 0.67**** | 0.63**** | 0.52**** |