Table 3.

Spearman correlation coefficients of the WST versus the EORTC QLQ-H&N35 and SWAL-QoL-NL

WST	Number of swallows						Duration
	M0 (N = 101)		M3 (N = 92)		M6 (N = 92)		M0 (N = 101)		M3 (N = 92)		M6 (N = 92)
	Spearman’s ρ	p-value	Spearman’s ρ	p-value	Spearman’s ρ	p-value	Spearman’s ρ	p-value	Spearman’s ρ	p-value	Spearman’s ρ	p-value
EORTC QLQ-H&N35
Pain in mouth	0.088	0.378	0.175	0.094	− 0.009	0.936	0.125	0.205	0.253	0.015*	− 0.075	0.479
Swallowing	0.145	0.145	0.201	0.055	0.110	0.295	0.172	0.082	0.260	0.012*	0.176	0.094
Dry mouth	0.052	0.603	0.053	0.616	− 0.085	0.422	0.013	0.897	0.177	0.091	− 0.022	0.832
Coughing	− 0.018	0.859	0.035	0.741	− 0.056	0.595	0.090	0.364	0.092	0.385	0.018	0.866
SWAL-QoL-NL
General burden	0.175	0.084	0.156	0.135	0.083	0.430	0.026	0.806	0.205	0.049*	0.162	0.123
Food selection	0.106	0.292	0.226	0.029*	0.244	0.020*	0.110	0.299	0.332	0.001*†	0.265	0.011*
Symptoms	0.248	0.013*	0.172	0.101	0.142	0.179	0.138	0.193	0.268	0.010*	0.255	0.015*
Total score	0.201	0.046*	0.238	0.023*	0.335	0.001*†	0.194	0.064	0.353	0.001*†	0.398	< 0.001*†

M0, before treatment, M3, 3 months after treatment, M6, 6 months after treatment

^*p ≤ 0.05

^†p ≤ 0.006 (Bonferroni correction)