Supplemental Table 3. Cronbach alpha value of each item on QLQ OES-18 version three questionnaire Amharic version.

Item	Cronbach's alpha if item deleted
Able to swallow solid foods	0.846
Able to swallow semi solid foods	0.833
Able to drink liquids	0.835
Difficulty of swallowing saliva	0.831
Choking during swallowing	0.827
Discomfort when eating	0.833
Early satiety	0.824
Difficulty in swallowing	0.831
Trouble with eating in front of other people	0.821
Dryness of mouth	0.821
Food and drink taste different from the usual	0.822
Difficulty when cough	0.822
Difficulty in talking	0.824
Indigestion and epigastric pain	0.826
Acid or bile coming to mouth	0.823
Felt pain when eating	0.836
Felt chest pain	0.826
Discomfort in stomach area	0.824