Table 1– Sleep data for all studies by date and device
31.07.0901.08.0914.08.0921.08.0922.08.0928.08.0929.08.0905.09.0906.09.0902.10.0903.10.0909.10.0910.10.09
DiagnDiagnCPAPAutoCPAPCPAPAutoAutoCPAPCPAPAutoAutoCPAP
TST min578555563554581554575567513566547526583
Sleep eff %87.580.69594.591.191.595.894.595.493.891.194.395.4
Sleep lat min57100132343331095258105
REM latency91102100141137110173106119126768382
WASO min26331681310151515839149
Stage 1 min1212121614136121611968
Stage 1 %2.22.32.13.02.42.41.12.23.21.91.61.11.4
Stage 2 min343290363273336290342284272310294312315
Stage 2 %59.452.464.549.357.952.459.650.253.154.853.859.354.1
Stage 34 min10211676115741319116311893908593
Stage 34 %17.720.913.620.812.723.715.828.823.016.516.516.316.0
Stage REM min120136111149156119135106106151153122166
Stage REM %20.824.519.826.926.921.523.518.820.726.728.023.328.5
MAI7.69.07.310.611.510.411.47.87.68.89.68.27.6
AHI0.81.80.00.90.10.40.50.10.10.00.30.30.1
Desat I0.40.60.10.00.10.10.00.00.00.20.10.00.0
P90/P956.5/6.95.865.56
Excessive leaks#
  • Diagn: diagnostic nights; CPAP: polysomnography was performed under continuous positive airway pressure; auto: polysomnography performed connected to five different automatic CPAP devices; TST: total sleep time; Sleep eff: sleep efficiency; Sleep lat: sleep latency; REM: rapid eye movement; WASO: time in wakefulness after sleep onset; MAI: movement arousal index; AHI: apnoea-hypopnoea index; Desat I: desaturation index; P90/P95: pressure level recommended by the devices. #: precluding consideration of parts of the night by the autoCPAP devices.