Appendix 3.

- Questionnaire of Olfactory Disorders Negative Statement. This questionnaire is based on 7 questions to measure the effect of decrease/loss of smell on daily activity, Kindly answer the questions based on what you feel right now.

Questions	Totally disagree %	Mostly disagree %	Mostly agree %	Totally agree %
Social questions
The changes in my sense of smell make me feel isolated.
Because of the changes in my sense of smell I have problems with taking part in activities of daily life.
Because of the changes in my sense of smell, I feel more anxious than I used to feel.
Eating questions
Because of the changes in my sense of smell, I go to restaurants less often than I used to.
Because of the changes in my sense of smell I eat less than I used to or more than I used to.
Anxiety questions
Because of the changes in my sense of smell, I try harder to relax.
Annoyance questions
I am worried that I will never get used to the changes in my sense of smell.