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Table 3 Pearson correlations between methods for different sleep metrics

From: An automatic estimation of the rest-interval for MotionWatch8© using uniaxial movement and lux data

Sleep Metric

Methods

LM

CSD

Protocol

BM

Fragmentation index

CSD

0.91

   

Protocol

0.92

0.98

  

BM

0.95

0.84

0.86

 

BL

0.99

0.91

0.91

0.94

Sleep efficiency

CSD

0.88

   

Protocol

0.87

0.97

  

BM

0.96

0.88

0.89

 

BL

0.97

0.83

0.84

0.91

Sleep duration

CSD

0.91

   

Protocol

0.92

0.98

  

BM

0.95

0.84

0.86

 

BL

0.99

0.90

0.91

0.94

Sleep latency

CSD

0.20*

   

Protocol

0.18*

0.79

  

BM

0.23*

0.12**

0.09**

 

BL

0.72

0.25*

0.35

0.23**

  1. LM Light-motion algorithm, CSD Consensus sleep diary, BM Biased-motion algorithm, BL Biased-light algorithm
  2. *p < 0.05; **p > 0.05