Table 3.

Inter-injection and inter-observer agreement

Inter-injection agreement, observer 1
		Injection 1
		No RLS	RLS grade 1	RLS grade 2	RLS grade 3	Total
Injection 2	No RLS	38	1	0	0	39
	RLS grade 1	1	39	0	0	40
	RLS grade 2	0	3	14	0	17
	RLS grade 3	0	0	3	8	11
	Total	39	43	17	8	107
Inter-injection agreement, observer 2
		Injection 1
		No RLS	RLS grade 1	RLS grade 2	RLS grade 3	Total
Injection 2	No RLS	41	0	0	0	41
	RLS grade 1	1	38	0	0	39
	RLS grade 2	0	5	12	1	18
	RLS grade 3	0	0	2	7	9
	Total	42	43	14	8	107
Inter-observer agreement
		Observer 1
		No RLS	RLS grade 1	RLS grade 2	RLS grade 3	Total
Observer 2	No RLS	78	5	0	0	83
	RLS grade 1	0	78	4	0	82
	RLS grade 2	0	0	30	2	32
	RLS grade 3	0	0	0	17	17
	Total	78	83	34	19	214

RLS right-to-left shunt