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. 2015 Sep 18;7:101–111. doi: 10.2147/NSS.S77888

Table 5.

Kappa values among the PSG technologists and Z-PLUS

T1 T2 T3 T4 T5 Z-PLUS
T1 1
T2 0.82 1
T3 0.85 0.83 1
T4 0.75 N/A 0.72 1
T5 0.85 0.85 0.85 0.75 1
Z-PLUS 0.67 0.66 0.68 0.57 0.66 1

Abbreviations: N/A, not available; PSG, polysomnography; T, technologist.