This is a short paper talking about the data stored in a CD-ROM, which were obtained from 16 subjects about sleep apnea.
The physiological signals include electroencephalogram, electromyogram, electrooculogram, invasive blood pressure, respiratory wave, oxygen saturation, and cardiac volume as measured by VEST method.
Polysomnographic waveforms were displayed on CRT display and edited by using a program called WAVE (Waveform Analyzer, Viewer, and Editor) which was developed at Massachusetts Institute of Technology.
16 PSG data is from 60 male subjects with or without sleep apnea syndrome. The mean age of the subjects was 40 (range: 32–56).
The recording time was between 2 and 7 h accordingto the patients.
The physiological signals were digitized at a sampling interval of 250 Hz and 12 bits/sample.
Header files also include the time of events during polysomnography, such as sleep apnea, or the period of continuous positive airway pressure (CPAP) and recorded on supplement floppy disk.
QRS annotation files are also included which has the detected QRS wave in ECG.
Sleep stage files are also included in which the sleep stage was determined by authors according to the criteria of Rechtschaffen and Kales.
