Table 1—

Respiratory parameters from unattended respiratory monitoring performed at home and in the sleep laboratory

ParametersMonitoring location
HomeSleep laboratory
Apnoeas*18.8±22.418.5±22.4
Hypopnoeas*11.1±9.112.7±11.7
AHI29.8±2530+26.5
Baseline SaO296.1±195.8±1
Mean Sa,O294.1±2.593.8±2
Nadir Sa,O278.6±1180.6±5
Time in supine position %42.7±25.745.6±27
Time in lateral position %52.2±26.751.7±27
Hours of recording7.7±0.78.7±0.9#
CT 90%5.3±1.56.2±11.6
Desaturations>3%*20.9±19.523.8±23.6
  • Data are presented as mean±sd

  • AHI: apnoea/hypopnoea index

  • Sa,O2: arferial oxyen saturation

  • CT 90%: cumulative percentage of time with Sa,O2<90%

  • *: per hour

  • #: p<0.001 when compared with home monitoring