Table 2.

Frequency and location of interscallop separation(s) (ISS) detected by handheld echocardiography

	Low-risk cohort (n=359)	High-risk cohort (n=400)
	n (%)	n(%)
No/indeterminate ISS*	90 (25)	121 (30.2)
Isolated ISS†
P1	1 (0.4)	8‡ (2.9)
P2	40 (14.8)	37 (13.3)
P3	42 (15.6)	16‡ (5.8)
P1/P2	6 (2.2)	13 (4.7)
P2/P3	136 (50.6)	142 (51)
>1 ISS†
Double ISS	37 (13.8)	55 (19.8)
Treble ISS	7 (2.6)	6 (2.2)
Quadruple ISS	0 (0)	1 (0.3)
Total	269 (100)	278 (100)

*Calculated as a percentage of the entire cohort.

†Calculated as a percentage of cases with identifiable ISS of the posterior mitral valve leaflet.

‡P<0.05.