Table 6.

Inter-rater agreement analysis (second assessment)

Location	Group/Subgroup	Number of raters	Kappa(se)1	95% CI	p
Vallecula	Overall	13	0.604 (0.009)	0.587–0.622	< 0.001
Pyriform sinus	Overall	13	0.509 (0.009)	0.491–0.527	< 0.001
Experience with FEES
Vallecula	experience > 5 years	5	0.704 (0.024)	0.657–0.751	< 0.001
	experience ≤ 5 years	8	0.572 (0.015)	0.542–0.601	< 0.001
Pyriform sinus	experience > 5 years	5	0.605 (0.025)	0.556–0.654	< 0.001
	experience ≤ 5 years	8	0.443 (0.015)	0.413–0.472	< 0.001
Experience using YPRSRS
Vallecula		2	0.717 (0.078)	-------	< 0.001
Pyriform sinus		2	0.714 (0.078)	-------	< 0.001

¹ Fleiss Kappa (standard error)