Table 2.

Grade 3–4 acute and late toxic effects

Adverse events	PET/CT-guided DP-IMRT	CT-based IMRT	p value*
	No. of patients (%)	No. of patients (%)
Acute adverse events
Anemia	1 (1.0)	2 (1.8)	0.54
Neutropenia	8 (7.9)	11 (9.8)	0.63
Leukopenia	15 (14.9)	18 (16.1)	0.85
Thrombocytopenia	1 (1.0)	1 (0.9)	0.73
Liver dysfunction	0	0	..
Nephrotoxicity	0	0	..
Nausea	14 (13.9)	17 (15.2)	0.85
Vomiting	10 (9.9)	13 (11.6)	0.83
Mucositis	31 (30.7)	34 (32.1)	0.77
Dermatitis	9 (8.9)	12 (10.7)	0.82
Dysphagia or odynophagia	3 (2.9)	5 (4.5)	0.72
Dry mouth	3 (2.9)	6 (5.3)	0.50
Ototoxicity	0	1 (0.9)	0.53
Late adverse events
Skin fibrosis	0	1 (0.9)	0.53
Dry mouth	0	0	..
Ototoxicity	0	1 (0.9)	0.53
Trismus	0	0	..
Nasopharyngeal ulceration	0	0	..

*p values were calculated by the χ ² test