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Table 2 Clinical characteristics of AEG patients in the SEER and our center set

From: A novel risk score system for prognostic evaluation in adenocarcinoma of the oesophagogastric junction: a large population study from the SEER database and our center

Clinical features SEER set Our center set
Sample size 1930 174
Survival time (months, median [IQR]) 24.00 [13.00, 43.00] 26.67 [16.93, 45.85]
Survival status (%)   
Alive 994 (51.5) 132 (75.9)
Dead 936 (48.5) 42 (24.1)
Age (years, median [IQR]) 63.00 [55.00, 70.00] 65.50 [60.00, 71.00]
Sex (%)   
Female 356 (18.4) 34 (19.5)
Male 1574 (81.6) 140 (80.5)
Histologic grade (%)   
Well differentiated 120 (6.2) 12 (6.9)
Moderately differentiated 728 (37.7) 68 (39.1)
Poorly differentiated 1051 (54.5) 92 (52.9)
Undifferentiated 31 (1.6) 2 (1.1)
Tumor size (%)   
≤1 cm 155 (8.0) 7 (4.0)
1-2 cm 294 (15.2) 23 (13.2)
2-3 cm 356 (18.4) 35 (20.1)
3-4 cm 337 (17.5) 46 (26.4)
4-5 cm 276 (14.3) 23 (13.2)
> 5 cm 512 (26.5) 40 (23.0)
pStage (%)   
I 373 (19.3) 43 (24.7)
II 472 (24.5) 63 (36.2)
III 986 (51.1) 63 (36.2)
IV 99 (5.1) 5 (2.9)
pT stage (%)   
T1 389 (20.2) 25 (14.4)
T2 270 (14.0) 31 (17.8)
T3 1136 (58.9) 79 (45.4)
T4 135 (7.0) 39 (22.4)
pN stage (%)   
N0 716 (37.1) 70 (40.2)
N1 632 (32.7) 35 (20.1)
N2 344 (17.8) 34 (19.5)
N3 238 (12.3) 35 (20.1)
pM stage (%)   
M0 1831 (94.9) 169 (97.1)
M1 99 (5.1) 5 (2.9)
Chemotherapy status (%)   
No/Unknown 542 (28.1) 40 (23.0)
Yes 1388 (71.9) 134 (77.0)
Positive LNs number (median [IQR]) 1.00 [0.00, 3.00] 1.00 [0.00, 5.00]
Examined LNs number (median [IQR]) 16.00 [10.00, 23.00] 30.00 [22.00, 38.00]
Ratio of metastasis LNs (median [IQR]) 0.03 [0.00, 0.20] 0.05 [0.00, 0.19]