Table 2.
Characteristics for immunotherapy cohorts
| ZZU cohort (n = 184) | SDU cohort (n = 43) | |||||
|---|---|---|---|---|---|---|
| Characteristic | CR + PR | SD + PD | p value | CR + PR | SD + PD | p value |
| Age (years) | 0.874 | > 0.999 | ||||
| < 65 | 39 (60.94) | 75 (62.50) | 18 (100) | 25 (100) | ||
| ≥ 65 | 25 (39.06) | 45 (37.50) | 0 (0) | 0 (0) | ||
| Sex | 0.308 | 0.701 | ||||
| Male | 49 (76.56) | 83 (69.17) | 14 (77.78) | 21 (84.00) | ||
| Female | 15 (23.44) | 37 (30.83) | 4 (22.22) | 4 (16.00) | ||
| Location | 0.189 | 0.624 | ||||
| Cardia | 39 (60.94) | 54 (45.00) | 6 (33.33) | 12 (48.00) | ||
| Body | 12 (18.75) | 33 (27.50) | 5 (27.78) | 7 (28.00) | ||
| Antrum | 13 (20.31) | 31 (25.83) | 6 (33.33) | 4 (16.00) | ||
| Whole | 0 (0.00) | 2 (1.67) | 1 (5.6) | 2 (8.00) | ||
| Clinical T stage | 0.366 | > 0.999 | ||||
| T3 | 18 (28.12) | 26 (21.67) | 0 (0) | 0 (0) | ||
| T4 | 46 (71.88) | 94 (78.33) | 18 (100) | 25 (100) | ||
| Clinical N stage | 0.457 | 0.253 | ||||
| N- | 16 (25.00) | 24 (20.00) | 0 (0) | 3 (12.00) | ||
| N+ | 48 (75.00) | 96 (80.00) | 18 (100) | 22 (88.00) | ||
| CA 72−4 level | 0.872 | > 0.999 | ||||
| Normal | 21 (32.81) | 41 (34.17) | 4 (22.22) | 5 (20.00) | ||
| Abnormal | 43 (67.19) | 79 (65.83) | 14 (77.78) | 20 (80.00) | ||
| CA 19−9 level | 0.498 | 0.765 | ||||
| Normal | 16 (25.00) | 36 (30.00) | 7 (38.89) | 11 (44.00) | ||
| Abnormal | 48 (75.00) | 84 (70.00) | 11 (61.11) | 14 (56.00) | ||
| CEA level | 0.640 | 0.099 | ||||
| Normal | 28 (43.75) | 48 (40.00) | 15 (83.33) | 14 (56.00) | ||
| Abnormal | 36 (56.25) | 72 (60.00) | 3 (16.67) | 11 (44.00) | ||
| Radiomics score * | 1.06 (0.69, 1.35) | 1.47 (1.18, 1.87) | < 0.001 | 1.02 (0.03, 1.34) | 1.42 (1.00, 1.93) | 0.012 |
Note: Except where indicated, data are number (%) of patients. MSI-H = microsatellite instability-high, MSS = microsatellite stability, CA 72 − 4 = carbohydrate antigen 72 − 4, CA 19 − 9 = carbohydrate antigen 19 − 9, CEA = carcinoembryonic antigen, PFS = Progression-free survival, OS = Overall survival
* Data in parentheses are interquartile range