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. 2019 Sep 25;14(9):e0223012. doi: 10.1371/journal.pone.0223012

Table 1. The correlations between the model-predicted scores and the self-reported sleep quality scores.

LR a SLR b GP c E-SVR d N-SVR e
Total score 0.77*** 0.21 0.78*** 0.2 0.46***
Subjective sleep quality 0.15 0.03 0.21 0.25 0.25
Sleep latency 0.15 0.03 0.15 -0.17 -0.22
Sleep duration 0.43** 0.18 0.27* 0.19 0.19
Habitual sleep efficiency 0.27* 0.42** 0.27* 0.39** 0.35**
Sleep disturbance 0.25 0.28* 0.29* 0.19 0.25
Sleep medication —— —— —— —— ——
Daytime dysfunction 0.51*** -0.09 0.44*** 0.44*** 0.43***

a LR = linear regression

b SLR = simple linear regression

c GP = Gaussian processes

d E-SVR = epsilon-support vector regression

e N-SVR = nu-support vector regression

*** p < 0.001

** p < 0.01

* p < 0.05