r1
(N=89)
r2
(N=89)
P-value
Age
Mean (SD) 51.8 (10.2) 51.8 (10.2) 1
Median [Min, Max] 54.0 [27.0, 74.0] 54.0 [27.0, 74.0]
Treatment
CCRT 66 (74.2%) 66 (74.2%) 1
Surgery 23 (25.8%) 23 (25.8%)
Stage
II 32 (36.0%) 32 (36.0%) 1
III 50 (56.2%) 50 (56.2%)
IV 7 (7.9%) 7 (7.9%)
Metastasis_status
No 39 (43.8%) 39 (43.8%) 1
Yes 50 (56.2%) 50 (56.2%)
Histology
Adenocarcinoma 1 (1.1%) 1 (1.1%) 1
Carcinoma.in.situ 1 (1.1%) 1 (1.1%)
Poorly.differentiated.carcinoma 2 (2.2%) 2 (2.2%)
Squamous cell carcinoma 85 (95.5%) 85 (95.5%)
DFS_status
0 70 (78.7%) 70 (78.7%) 1
1 19 (21.3%) 19 (21.3%)
OS_status
0 87 (97.8%) 87 (97.8%) 1
1 2 (2.2%) 2 (2.2%)
DFS_months
Mean (SD) 17.8 (12.7) 17.8 (12.7) 1
Median [Min, Max] 13.5 [0.433, 43.4] 13.5 [0.433, 43.4]
OS_months
Mean (SD) 20.7 (13.1) 20.7 (13.1) 1
Median [Min, Max] 19.3 [0.433, 43.4] 19.3 [0.433, 43.4]