Table 1 Clinical features of patients in case and control groups
From: High-risk factors of parotid lymph node metastasis in nasopharyngeal carcinoma: a case-control study
Clinical features | Total No. (%) | Cases (19 pts) | Controls (44 pts)a | p value* |
|---|---|---|---|---|
Age | 0.840 | |||
Median | 42.0 | 46.0 | 42.0 | |
Range | 9-67 | 9-66 | 16-67 | |
Sex | 1.000 | |||
Male | 49 (77.8) | 15 | 34 | |
Female | 14 (22.2) | 4 | 10 | |
Histology | 0.979 | |||
Differentiated | 33 (52.4) | 10 | 23 | |
Undifferentiated | 30 (47.6) | 9 | 21 | |
T stage | 0.346 | |||
T1-2 | 22 (34.9) | 5 | 17 | |
T3-4 | 41 (65.1) | 14 | 27 | |
Mass in neck (C.C.)b | 0.142 | |||
Yes | 47 (74.6) | 17 | 30 | |
No | 16 (25.4) | 2 | 14 |