Table 4. Comparison to existing detectors.

Patient	Our detector				RMS detector				LineLength detector
	Sens [%]	CI [%]	Spec [%]	CI [%]	Sens [%]	CI [%]	Spec [%]	CI [%]	Sens [%]	CI [%]	Spec [%]	CI [%]
1	50	13–99	91	80–97	50	13–99	91	80–97	50	13–99	94	85–99
2	14	0–64	95	84–99	0	0–40	95	84–99	0	0–40	95	84–99
3	75	19–99	94	79–99	50	7–93	97	83–100	50	7–93	94	79–99
4	75	19–99	94	84–99	0	0–60	98	90–100	25	1–81	98	90–100
5	94	70–100	39	35–87	69	41–89	52	31–73	81	54–96	61	39–80
6	13	2–40	100	86–100	13	2–40	100	86–100	13	2–40	100	86-100

We defined the HFO area by the half maximum method for all three detectors. Sens – sensitivity, spec – specificity and CI – confidence intervals as defined in section “Statistical analysis”.