Questionnaire/Scale Na %
EORTC QLQ-C30 36 43.9
EORTC QLQ-H&N35 31 37.8
UW-QOL 8 9.8
SF-36 6 7.3
UCSF oral cancer pain questionnaire 4 4.9
VAS 3 3.7
Vanderbilt Head and Neck Symptom Survey (VHNSS) 2 2.4
University of Michigan HNQOL 2 2.4
French specific HNQOL 1 1.2
VRS 1 1.2
Brief core set (BCSQ-H&N) 1 1.2
Brief pain Inventory 1 1.2
Common Toxicity Criteria (CTC) 1 1.2
10 point scale 1 1.2
French specific HNQOL 1 1.2
Health Status Q-12 1 1.2
Memorial Symptom Assessment Scale 1 1.2
Oral and Pharyngeal symptom questionnaire 1 1.2
Bochum university questionnaire 1 1.2
RAND-36 1 1.2
SF-12v2 1 1.2
Head and Neck health survey 1 1.2
Xerostomia Questionnaire 1 1.2
Pain data from patient records or no description of pain assessment method 11 13.4

aNumbers do not add up to total (n = 82), because some studies used several questionnaires.