Variable | NPC patients (n = 239) | Controls (n = 286) |
---|---|---|
*p<0.01, compared with controls; †ohers include poorly differentiated adenocarcinoma (n = 8), higher differentiated squamous cell carcinoma (n = 6),and undifferentiated cancer (n = 9). | ||
Sex (%) | ||
Male | 163 (68.2)* | 151 (52.8) |
Female | 76 (31.8)* | 135 (47.2) |
Mean (SD) age (years) | 46.9 (11.2) | 47.2 (12.8) |
Histological type (%) | ||
Poorly differentiated squamous cell carcinoma | 216 (90.4) | |
Others† | 23 (9.6) |