Table 2.

Results of the fixation count, the time spent fixating, the average TTFF,^a and the average fixation revisitations on each ECG^b lead for all interpreters.

ECG lead	Fixation count			Time spent fixating (msc)			TTFF (ms)			Fixation revisitation count
	Mean (μ)	SD (σ)	Mean (μ)		SD (σ)	Mean (μ)		SD (σ)	Mean (μ)		SD (σ)
II	54	9	2727		456	4225		213	2		.85
V5	28	5	1301		236	12,639		447	1		.82
V1	24	6	1476		320	9552		557	2		.73
V3	16	5	974		103	10,634		557	4		.51
V2	15	3	904		54	9898		447	4		.65
aVFd	14	3	890		51	6233		88	4		.62
V4 right	13	2	972		66	7035		222	3		.14
3	11	1	886		54	9222		111	3		.86
V3 right	11	1	868		47	6064		93	3		.37
2	11	1	1017		199	8683		38	4		.47
aVLe	10	1	723		47	3602		103	3		.82
V7	8	1	437		48	10,513		601	2		.92
1	8	1	707		42	11,393		587	2		.80
V8	8	1	435		53	13,076		598	1		.51
aVRf	8	1	456		49	11,569		615	1		.85
V6	7	1	325		49	18,641		566	1		.59
V4	6	1	312		32	19,460		333	1		.20
Info (metadata)	4	1	64		16	20,394		887	0		.57

^aTTFF: time to first fixation.

^bECG: electrocardiogram.

^cms: milliseconds.

^daVF: augmented vector foot.

^eaVL: augmented vector left.

^faVR: augmented vector right.