Table 2

Median (IQR) physiological indices at stable state and during an exacerbation for paired plasma (n=28) and paired sputum (n=14) subsets

Stable Exacerbation p value
Plasma
 FEV1 (l)1.03 (0.80–1.30)1.03 (0.87–1.31)0.956
 FVC (l)2.36 (2.11–3.18)2.29 (1.51–2.91)0.237
 PEF (l/s)2.50 (1.87–3.67)2.48 (2.01–3.21)0.759
 Sao 2 (kPa)94.0 (92.0–95.0)93.0 (91.0–94.8)0.431
Sputum
 FEV1(l)1.15 (0.98–1.47)1.08 (0.77–1.28) 0.161
 FVC (l)2.75 (2.06–3.53)2.38 (1.85–3.26)0.401
 PEF (l/s)3.57 (2.32–4.35)2.29 (2.05–3.07)0.012
 Sao 2 (kPa)94.0 (91.8–96.0)93.0 (91.0–95.0)0.499
  • FEV1 = forced expiratory volume in one second; FVC = forced vital capacity; PEF = peak expiratory flow; Sao 2 = oxygen saturation.