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Table 1 Summary of the sleep-related parameters of the subjects

From: Sleep/wake estimation using only anterior tibialis electromyography data

Parameter Normal (mean ± SD) Patients (mean ± SD)
Sex (male/female) 4/3 4/1
Age (years) 33.3 ± 6.2 33.8 ± 13.2
BMI (kg/m2) 24.7 ± 5.4 24.2 ± 6.4
Sleep latency (min) 20.0 ± 22.8 16.0 ± 2.6
Stages 1 & 2 (%) 65.4 ± 7.9 66.6 ± 7.3
Stages 3 & 4 (%) 12.3 ± 8.1 10.0 ± 10.0
Stage REM (%) 22.3 ± 6.1 16.3 ± 5.7
Total sleep time (min) 454.7 ± 37.9 444.4 ± 41.4
Sleep efficiency (%) 97.6 ± 0.8 97.4 ± 1.9
  1. SD standard deviation.