Table 3

Anthropometric, pulmonary and dyspnoea data of bronchiectatic patients without (NFL) and with flow limitation (FL) supine, or seated and supine

All patientsNFLFL supineFL seated and supine
Subjects n231454
Sex M:F6:172:124:10:4
Age yrs56±1752±1771±1051±14
Height cm162±7161±6168±8158±3
Weight % pred103±15101±16105±12109±13
FVC % pred81±2796±2063±17**49±16***
FEV1 % pred64±2982±2143±11***28±6***
FEV1/FVC %64±1571±1355±15*52±9*
FEV1/FVC % pred82±1990±1774±2065±12*
PEF % pred71±2884±2552±23*49±15*
FEF25–75% % pred36±3452±3517±7*6±2*
FEF75% % pred31±2944±3016±7*6±4*
IC % pred80±2593±1958±15**63±25*
ERV % pred83±51102±4678±4520±5**
TLC % pred78±1685±1070±15*64±22*
FRC % pred77±1882±1774±1561±16
RV % pred77±1974±1577±2189±29
FRC/TLC %54±753±759±854±5
RV/TLC %37±1131±844±10**51±5***
TL,CO % pred70±2378±2170±1441±21*
Pa,O2 mmHg74±1380±1071±960±18*
Pa,CO2 mmHg41±540±543±442±8
MRC dyspnoea score1.8±1.21.1±0.62.2±0.5**3.8±1.0***
  • Data are presented as mean±sd

  • M: male

  • F: female

  • % pred: percentage of predicted

  • FVC: forced vital capacity

  • FEV1: forced expiratory volume in one second

  • PEF: peak expiratory flow

  • FEF25–75%: forced expiratory flow between 25% and 75% of FVC

  • FEF75%: forced expiratory flow at 75% of FVC

  • IC: inspiratory capacity

  • ERV: expiratory reserve volume

  • TLC: total lung capacity

  • FRC: functional residual capacity

  • RV: residual volume

  • TL,CO: transfer factor for carbon monoxide

  • Pa,O2: arterial oxygen tension

  • Pa,CO2: arterial carbon dioxide tension

  • MRC: Medical Research Council. Significantly different from NFL group

  • *: p<0.05

  • **: p<0.01

  • ***: p<0.001