Table 1.

Health-related quality-of-life instruments used in the literature*

Instruments	No. of Studies (n = 54)
EORTC QLQ-30/H&N-35	26
UW-QOL	11
SF-36	7
HADS	5
FACT-G & HN	3
Other	17

* These are the most common health-related quality-of-life instruments used in studies obtained from the literature review. EORTC QLQ-30/H&N-35 = European Organization for Research and Treatment of Cancer Quality of Life Questionnaire 30/Head & Neck 35; FACT-G & HN = Functional Assessment of Cancer Therapy General and Head and Neck; HADS = Hospital Anxiety and Depression Scale; SF-36 = Short Form 36; UW-QOL= University of Washington Quality of Life Questionnaire.