Table 5.

Inter-rater agreement analysis (initial assessment)

Location	Group/Subgroup	Number of raters	Kappa(se)1	95% CI	p
Vallecula	Overall	13	0.613 (0.009)	0.595–0.630	< 0.001
Pyriform sinus	Overall	13	0.558 (0.009)	0.541–0.576	< 0.001
Experience with FEES
Vallecula	experience > 5 years	5	0.637 (0.024)	0.590–0.683	< 0.001
	experience ≤ 5 years	8	0.588 (0.015)	0.559–0.618	< 0.001
Pyriform sinus	experience > 5 years	5	0.529 (0.025)	0.479–0.578	< 0.001
	experience ≤ 5 years	8	0.588 (0.014)	0.559–0.616	< 0.001
Experience using YPRSRS
Vallecula		2	0.832 (0.063)	-------	< 0.001
Pyriform sinus		2	0.856 (0.061)	-------	< 0.001

¹ Fleiss Kappa (standard error)