Table 1. Subjective voice and swallowing evaluation questionnaires.

Questions	Never	Nearly never	Sometimes	Often	Always
Total voice impairment score (VIS)
My voice is hoarse	1	2	3	4	5
My voice is breathy	1	2	3	4	5
Making high pitch voice takes great efforts for me	1	2	3	4	5
Making low pitch voice takes great efforts for me	1	2	3	4	5
My voice changes during a day	1	2	3	4	5
Total swallowing impairment score (SIS)
I have a foreign body sensation when swallowing	1	2	3	4	5
I choke/cough during food ingestion	1	2	3	4	5
I choke/cough during water ingestion	1	2	3	4	5