Clinical Characteristics of Recurrent Nasopharyngeal Carcinoma in High-Incidence Area

Table 4

Changes in clinical features with increasing latency.

Features	Group A (⩽2 y)	Group B (＞2 y)	𝑃 value
Sex			0.02
Male	142	134
Female	27	48
Age	43.0	42.5	0.77
T-stage*			0.01
T1	9	30
T2	53	70
T3	62	51
T4	31	18
N-stage*			0.82
Diagnosis			<0.01
Pathology	119	153
CT	16	12
MRI	31	12
PET-CT	3	5
rT-stage*			0.43
rT0	10	7
rT1	14	18
rT2	18	24
rT3	42	56
rT4	85	77
rN-stage*			0.38
rM-stage*			0.52

*Staged by the 1992 Fuzhou staging system (total 324 patients had clear pretreatment stages).