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Table 1 Agreement between MSS and manual scoring compared to agreement between two scorers

From: The case for using digital EEG analysis in clinical sleep medicine

Variable ICCs MSS vs. Manual scoring ICCs Between two scorers
Malhotra et al.a Younes et al.b Younes et al.c Within sitea Between sitesa From other
Mean (range) Mean (95% CI) sourcesd
Total sleep time 0.87 0.96 0.92 0.89(0.78–0.98) 0.87 (0.85–0.89)  
Sleep Efficiency 0.74 0.84 0.76 0.80 (0.69–0.96) 0.77 (0.73–0.80)
Non-REM stage 1 0.56 0.65 0.63 0.62(0.39–0.80) 0.44 (0.39–0.49)
Non-REM stage 2 0.84 0.85 0.80 0.75(0.49–0.90) 0.61 (0.57–0.66)
Non-REM stage 3 0.47 0.65 0.74 0.56(0.27–0.83) 0.40 (0.35–0.45)
REM Sleep 0.64 0.85 0.84 0.78(0.64–0.92) 0.69 (0.64–0.72)
Sleep onset latency   0.72 0.76    0.30–1.00
REM onset latency 0.55 0.77 0.65 0.67(0.32–0.90) 0.55 (0.50–0.59)  
#Arousals-REM sleep 0.39    0.55(0.28–0.88) 0.52 (0.47–0.57)
#Arousals-non REM sleep 0.83    0.59(0.24–0.75) 0.58 (0.53–0.62)
Arousal/awakening Index   0.75 0.72    0.09–0.85
  1. ICC intraclass correlation coefficient, CI confidence interval, MSS Michele sleep scoring, REM rapid-eye-movement sleep; aFrom (Malhotra et al. 2013); bFrom (Younes et al. 2015b); cFrom (Younes et al. 2015c); dCompiled from (Danker-Hopfe et al. 2004), (Pittman et al. 2004). (Magalang et al. 2013), and (Zhang et al. 2015)