Table 2

Control demographics

PatientAgeSNIP P mo,W P I,max P E,max FEV1FVCFEV1/FVC S p,O2 P ET,CO2
no.yrscmH2OcmH2OcmH2OcmH2OLL%%kPa
Paediatric
11165.458.359.731.01.41.878.4965.7
21090.3100.689.0112.01.52.073.0965.1
31490.0132.090.674.75.16.083.9975.3
412105.6102.577.778.02.63.378.5985.0
514103.270.091.390.12.12.873.0984.6
61679.0105.0125.479.13.43.693.3975.1
715104.0167.7164.8123.84.56.272.2985.3
817129.0170.0120.0164.22.32.786.8976.1
Mean±sd13.6±2.495.8±19.2113.3±41.0102.3±33.094.1±39.62.8±1.33.5±1.779.9±7.697±15.3±0.4
Adult
918108.0136.0120.5136.02.12.585.7985.3
1025101.0154.290.9120.63.84.584.098
1144116.0151.098.6108.63.04.765.4965.2
1222130.0208.0149.8157.24.96.69.069.898
132267.095.048.385.53.33.888.3994.8
1420118.6256.0116.0181.04.25.970.9985.7
151895.0114.086.183.93.43.791.8994.5
1630114.5152.6161.7177.53.84.077.3984.0
172843.8147.2112.6125.33.54.283.298
183556.178.572.164.23.44.379.1975.8
192265.2104.581.892.43.23.493.6984.5
Mean±sd26±892.3±29.2145.2±51.1103.5±33.2121.1±39.03.5±0.74.4±1.280.8±9.298±15.1±0.5
All controls
Mean±sd21±993.8±24.9131.7±48.6103.0±32.2109.7±40.53.2±1.04.0±1.580.4±8.498±15.2±0.5
  • SNIP: sniff nasal inspiratory pressure

  • Pmo,W: whistle mouth pressure

  • PI,max: maximal static inspiratory mouth pressure

  • PE,max: maximal static expiratory mouth pressure

  • FEV1: forced expiratory volume in one second

  • FVC: forced vital capacity

  • Sp,O2: arterial oxygen saturation measured by pulse oximetry

  • Pet,co2: end-tidal carbon dioxide tension