151751-Najiba-Chargi

342 CHAPTER 17 Appendix 9. (Continued). HPV - n = 33 HPV + n = 70 P value Oropharyngeal tumor site Base of tongue 10 (30) 24 (34) .198 b Tonsil 15 (46) 40 (57) Other 8 (24) 6 (9) T classification T1 1 (3) 26 (37) <.001 b T2 7 (21) 21 (30) T3 15 (46) 11 (16) T4 10 (30) 12 (17) N classification N0 6 (18) 5 (7) .026 b N1 9 (27) 13 (19) N2 18 (55) 49 (70) N3 0 (0) 3 (4) AJCC stage III 10 (30) 15 (21) .336 c IV 23 (70) 55 (79) Treatment modality RT 6 (18) 32 (46) .005 b RT unfit for chemo 1 (3) 1 (1) CRT (cetuximab) 18 (55) 30 (43) CRT (cisplatin) 8 (24) 7 (10) Modified diet at t 0 (FOIS < 7) No 20 (61) 64 (91) .001 c Yes 13 (39) 6 (9) Trismus at t 0 No 28 (90) 66 (97) .175 c Yes 3 (10) 2 (3) Unknown 2 2 NB: Not all percentages sum up exactly to 100% due to rounding. Abbreviations: BMI = body mass index, CRT = chemoradiotherapy (cisplatin or cetuximab based), HPV = human papilloma virus, other = soft palate, uvula, oropharyngeal wall, vallecula or pharyngeal arch, RT = radiotherapy, sarcopenia = SMM below 43.2 cm 2 /m 2 , SMM = skeletal muscle mass.