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Table 1 The characteristics and prognosis for male and female patients

From: Influence of gender and age on the survival of patients with nasopharyngeal carcinoma

Variable Men Women P value
Patient (%) 213 (71.2) 86 (28.8)  
Age (year) 49 (18–83) 47 (22–75) 0.515
Chemotherapy 123 (57.7) 52 (60.5) 0.835
Histologic type
    undifferentiated carcinoma 185 (86.9) 81 (94.2) 0.680
    poorly differentiated carcinoma 25 (11.7) 3 (3.5)
    moderately differentiated carcinoma 3 (1.4) 2 (2.3)
nasopharynx tumor volume (cm2) (median) 36.5 (1.2-279.3) 27.2 (1.5-222.9) 0.055
Lymph node max diameter (cm) (median) 2.5 (0.5-9.0) 2 (0.4-13.0) 0.253
T stage
T1 22 (10.3) 11 (12.8) 0.563
T2 47 (22.1) 20 (23.3)
T3 106 (49.8) 40 (46.5)
T4 38 (17.8) 15 (17.4)
N stage
N0 11 (5.2) 5 (5.8) 0.166
N1 37 (17.4) 22 (25.6)
N2 145 (68.1) 53 (61.6)
N3 20 (9.4) 6 (7.0)
TNM stage
stage 4 (1.9) 4 (4.7) 0.192
stage 18 (8.5) 11 (12.8)
stage 139 (65.3) 51 (59.3)
stage 52 (24.4) 20 (23.3)
Local failure (%) 13 (6.1) 5 (5.8) 0.924
Regional failure (%) 11 (5.2) 1 (1.2) 0.111
Distant metastasis (%) 45 (21.1) 10 (11.6) 0.055
Tumor progression (%) 57 (26.8) 14 (16.3) 0.054
Median time to local failure (m) 22 (9–93) 49 (10–96) 0.017
Median time to regional failure (m) 26 (6–63) 41 0.015
Median time to distant metastasis (m) 19 (5–78) 23 (7–73) 0.020
Median time to disease progression (m) 18 (5–93) 27.5 (7–96) 0.010