Table 1

Demographic, anthropometric and comorbidity data across the different groups of sleep-disordered breathing

Eucapnic (PaCO2<6 kPa) (n=83)Hypercapnic (PaCO2 ≥6 kPa) (n=162)
Age (years)53±1256±14
Length of stay (days)2±24±4*
BMI (kg/m2)44.1±9.750±12*
Clinic SpO2 (%)94.7±2.689.8±6.1*
Ischaemic heart disease15 (18)26 (16)
Stroke3 (4)8 (5)
Diabetes mellitus23 (28)64 (40)
Systemic hypertension45 (54)91 (56)
  • Values expressed as mean±SD or number (%).

  • *Significantly different from eucapnic group p<0.001.

  • BMI, body mass index; ESS, Epworth Sleepiness Score; SpO2, oxygen saturations.