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