Table 1.

Analysis for sensitivity and specificity comparing VAC-surveillance to the gold standard. Cut-off indicates the percentage setting of the lowest outliers being excluded at import. Threshold shows different tolerance threshold settings for including respiratory deterioration as significant according to VAE rules.

Mode	Cut-off	Threshold	TP	FP	FN	TN	Total	Sensitivity	Specificity
Auto	5%	10%	42	0	1	89	132	0.98	1
Auto	0%	10%	27	8	16	85	136	0.63	0.91
Auto	10%	10%	39	4	4	87	134	0.91	0.96
Auto	5%	0%	42	0	1	89	132	0.98	1
Auto	5%	10%	42	0	1	89	132	0.98	1
Auto	5%	20%	42	0	1	89	132	0.98	1
Manual	Visual	Visual	32	4	10	86	132	0.76	0.96

TP True Positive; FP False Positive; FN False Negative; TN True Negative; VAC Ventilator Associated Condition.