Psychometric properties of the EORTC head and neck-specific quality of life questionnaire in disease-free Greek patients with cancer of pharynx and larynx.

Purpose: The purpose of our study was to formally translate to and determine the psychometric properties of QLQ-H&N35 in a group of Greek patients who had been successfully treated for laryngeal or pharyngeal cancer.

Method: The Greek translation of the questionnaire was performed according to the instructions of EORTC Quality of Life group as described in the translation manual. The procedure included forward and backward translations followed by a pilot study and was reported and accepted by the EORTC Quality of Life group.