Table 2.

The Xerostomia Inventory (XI).

I sip liquids to help swallow food.

My mouth feels dry when eating a meal.

I get up at night to drink.

My mouth feels dry.

I have difficulty in eating dry foods.

I suck sweets or cough lollies to relieve dry mouth.

I have difficulties swallowing certain foods.

The skin of my face feels dry.

My eyes feel dry.

My lips feel dry.

The inside of my nose feels dry.

Response options: never (score of 1), hardly (2), occasionally (3), fairly often (4), very often (5).