1 / Iwase29 / 2003 / International journal of oral and maxillofacial surgery / EORTC C-30 / 1b
2 / Girod26 / 2009 / Laryngoscope / EORTC C-30 / H&N 35 / 1b
3 / Airoldi42 / 2010 / HeadNeck / EORTC C-30 / H&N 35 / 2b
4 / Oates18 / 2008 / ANZ J. Surgery / EORTC C-30 / H&N 35 / 1b
5 / Klug30 / 2002 / International journal of oral and maxillofacial surgery / EORTC C-30 / H&N 35 / 2b
6 / Borrreven43 / 2007 / Eur Arch Otorhinolaryngol / EORTC C-30 / H&N 35 / 1b
7 / Kessler22 / 2004 / Radiotherapy and Oncology / EORTC C-30 / H&N 35 / 1b
8 / Rogers20 / 1998 / Oral Oncology / EORTC C-30 / H&N 35 + UW-QOL / 1b
9 / Chandu17 / 2005 / International Journal of Oral MaxillofacialSurgery / EORTC C-30+
UW-QOL / 2b
10 / Devine33 / 2001 / International journal of oral and maxillofacial surgery / UW-QOL / 2b
11 / Hsing25 / 2011 / Oral Oncology / UW-QOL / 2b
12 / Feng27 / 2010 / Journalof Clinical Oncology / UW-QOL / 1b
13 / Li28 / 2012 / British Journal of Oral and Maxillofacial Surgery / UW-QOL / 2c
14 / Bekiroglu19 / 2011 / Oral Oncology / UW-QOL / 1b
15 / Rogers31 / 2006 / International journal of oral and maxillofacial surgery / UW-QOL / 2c
16 / Kazi24 / 2012 / Journal of cancer research and therapeutics / UW-QOL / 2c
*Levels of evidence as proposed by the Oxford Centre for Evidence-based
Medicine16 .
Supplemental Table 2. Articles included in the meta-analysis