Table 1—

Demographic and pulmonary function data for cystic fibrosis patients and control subjects

CE (n=19)Control (n=10)
Age yrs30±627±5
 % predicted normal28±7
Arterial blood gases
Pa,CO2 mmHg44.2±7.3
Pa,O2 mmHg65.6±8.2
 [HCO3] mmol·L−128.3±4.2
Sa,O2 awake %87±6***95±2
Pt,CO2 awake mmHg41.5±7.147.0±2.3
6‐min walk
 Distance m407±109534±74
 Min. Sa,O2 %86.6±8.0+93.5±5.0
  • Data are presented as mean±sd unless smemise stated

  • CF: cystic fibrosis

  • BMI: body mass index

  • FEV1: forced expiratory volume in one second

  • Pa,CO2: arterial carbon dioxide tension

  • Pa,O2: arterial oxygen tension

  • Sa,O2: arterial oxygen saturation

  • Sa,O2 awake: arterial oxygen saturation taken by oximetry white supine before nighttime sleep

  • Pt,CO2: transcutanous carbon dioxide tension taken supine before nighttime sleep

  • #: p=0.006

  • : p=0.012

  • ***: p<0.001

  • +: p=0.008 versus Control