Bolus Residue Scale: An Easy-to-Use and Reliable Videofluoroscopic Analysis Tool to Score Bolus Residue in Patients with Dysphagia

Table 4

Cross-classifications of both gradings given by 6 nonexperts are calculated for 50 swallows: the pattern of agreement (diagonal) and the total frequency of assigned scores for gradings 1 and 2 are shown.

	Grading 2						Total	%
	1	2	3	4	5	6
Grading 1
1	70	6	5	5	0	2	88	29.3
2	5	44	2	7	0	4	62	20.7
3	1	3	23	2	0	2	31	10.3
4	1	2	1	28	3	7	42	14
5	0	0	0	2	1	4	7	2.3
6	0	4	1	5	1	59	70	23.3
Total	77	59	32	49	5	78	300	100
%	25.7	19.7	10.7	16.3	1.7	26