Disposable ECG-LWs were noninferior to reusable ECG-LWs for all false-alarm events ( N [ rate per 100 patient days ] , disposable 2029 [ 79.1 ] vs reusable 6673 [ 97.9 ] ; adjusted relative risk [ 95 % CI ] : 0.81 [ 0.63-1 .06 ] , P = .002 ; superiority P = .12 . )