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Table 3 Validity of the NSCAN compared with PSG

From: Validity of an under-mattress sensor for objective sleep measurement in critically ill patients: a prospective observational study

  

95% CI

Agreement, %

68.4

67.9–69.0

Sensitivity, %

90.1

89.7–90.6

Specificity, %

38.8

37.9–39.7

PPV, %

66.8

66.2–67.4

NPV, %

74.2

73.1–75.3

PLR

1.472

1.450–1.495

NLR

0.254

0.241–0.268

  1. Abbreviations: CI confidence interval, NLR negative likelihood ratio, NPV negative predictive value, NSCAN Nemuri SCAN, PLR positive likelihood ratio, PPV positive predictive value, PSG polysomnography