86 Table 3. Spearman correlation coefficients of the WST versus the EORTC QLQ-H&N35 and SWAL-QOL *: p<0.05, †: p≤0.006 (Bonferroni correction), M0: before treatment, M3: 3 months after treatment, M6: 6 months after treatment Duration M6 (n = 92) p-value 0.479 0.094 0.832 0.866 0.123 0.011* 0.015* <0.001 Spearman’ s ρ -0.075 0.176 -0.022 0.018 0.162 0.265 0.255 0.398 M3 (n = 92) p-value 0.015* 0.012* 0.091 0.385 0.049* 0.001*† 0.010* 0.001*† Spearman’ s ρ 0.253 0.260 0.177 0.092 0.205 0.332 0.268 0.353 M0 (n = 101) p-value 0.205 0.082 0.897 0.364 0.806 0.299 0.193 0.064 Spearman’ s ρ 0.125 0.172 0.013 0.090 0.026 0.110 0.138 0.194 Number of swallows M6 (n = 92) p-value 0.936 0.295 0.422 0.595 0.430 0.020* 0.179 0.001*† Spearman’ s ρ -0.009 -0.009 -0.085 -0.056 0.083 0.244 0.142 0.335 M3 (n = 92) p-value 0.094 0.055 0.616 0.741 0.135 0.029* 0.101 0.023* Spearman’ s ρ 0.175 0.201 0.053 0.035 0.156 0.226 0.172 0.238 M0 (n = 101) p-value 0.378 0.145 0.603 0.859 0.084 0.292 0.013* 0.046* Spearman’ s ρ 0.088 0.145 0.052 -0.018 0.175 0.106 0.248 0.201 WST EORTC QLQH&N35 Pain in mouth Swallowing Dry mouth Coughing SWAL-QOL General burden Food selection Symptoms Total score
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