Prognostic Value of Volume-Based Positron Emission Tomography/Computed Tomography in Nasopharyngeal Carcinoma Patients after Comprehensive Therapy

Table 1

Characteristics of 221 patients.

Characteristic	Number of patients	Constituent ratio (%)
Age
Median	46 ± 12
Range	17~75
Gender
Male	169	76.4
Female	52	23.5
Treatment
Radiotherapy	89	40.3
Radiotherapy & chemotherapy	119	53.8
Surgery & radiotherapy & chemotherapy	10	4.5
Surgery & radiotherapy	1	0.5
Chemotherapy	1	0.5
Surgical	1	0.5
Patient status
No evidence of disease	156	70.6
Alive with disease	28	12.7
Dead	37	16.7