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Table 2 Sleep data epochs frequency distribution about sleep stages and postures

From: Lying position classification based on ECG waveform and random forest during sleep in healthy people

  Wake REM Light sleep Deep sleep Sum
Left 244 336 960 827 2367
Supine 84 52 583 108 827
Right 158 292 770 473 1693
Prone 21 49 35 122 227
Sum 507 729 2348 1530 5114