|  | Iranian | Chinese | South Asian | Other | p |
---|---|---|---|---|---|---|
Sex (N = 3136) | Male | 15 (78.9%) | 168 (62.2%) | 57 (58.8%) | 1974 (71.8%) | p < 0.001 |
 | Female | 4 (21.1%) | 102 (37.8%) | 40 (41.2%) | 776 (28.2%) |  |
Age in years (N = 3136) | Less than 55 | 7 (36.8%) | 86 (31.9%) | 26 (26.8%) | 515 (18.7%) | p < 0.001 |
 | 55-64 | 3 (15.8%) | 49 (18.1%) | 20 (20.6%) | 652 (23.7%) |  |
 | 65-74 | 7 (36.8%) | 65 (24.1%) | 35 (36.1%) | 884 (32.1%) |  |
 | 75 and More | 2 (10.5%) | 70 (25.9%) | 16 (16.5%) | 699 (25.4%) |  |
Years of Diagnosis (N = 3136) | 1984-1990 | 0 (0.0%) | 32 (11.9%) | 11 (11.3%) | 643 (23.4%) | p < 0.001 |
 | 1991-1995 | 7 (36.8%) | 54 (20.0%) | 16 (16.5%) | 481 (17.5%) |  |
 | 1996-2000 | 4 (21.1%) | 63 (23.3%) | 27 (27.8%) | 626 (22.8%) |  |
 | 2001-2006 | 8 (42.1%) | 121 (44.8%) | 43 (44.3%) | 1000 (36.4%) |  |
Tumor Histology - Lauren classification (N = 3136) | Intestinal | 14 (73.7%) | 205 (75.9%) | 74 (76.3%) | 2188 (79.6%) | 0.032 |
 | Diffuse | 3 (15.8%) | 55 (20.4%) | 13 (13.4%) | 382 (13.9%) |  |
 | Other | 2 (10.5%) | 10 (3.7%) | 10 (10.3%) | 180 (6.5%) |  |
Tumor Location (N = 3136) | Proximal 1/3 | 6 (31.6%) | 52 (19.3%) | 47 (48.5%) | 1302 (47.3%) | p < 0.001 |
 | Distal 2/3 | 10 (52.6%) | 171 (63.3%) | 28 (28.9%) | 894 (32.5%) |  |
 | NES/NOS* | 3 (15.8%) | 47 (17.4%) | 22 (22.7%) | 554 (20.1%) |  |
Tumor Stage (N = 2567) | I | 1 (5.6%) | 14 (6.1%) | 3 (3.7%) | 108 (4.8%) | 0.85 |
 | II | 6 (33.3%) | 65 (28.5%) | 29 (35.8%) | 702 (31.3%) |  |
 | III | 6 (33.3%) | 96 (42.1%) | 29 (35.8%) | 829 (37.0%) |  |
 | IV | 5 (27.8%) | 53 (23.2%) | 20 (24.7%) | 601 (26.8%) |  |
Surgery (N = 3080) | Yes | 14 (73.7%) | 178 (66.7%) | 56 (57.7%) | 1502 (55.7%) | 0.0027 |
 | No | 5 (26.3%) | 89 (33.3%) | 41 (42.3%) | 1195 (44.3%) |  |
Chemotherapy (N = 3065) | Yes | 10 (52.6%) | 116 (43.6%) | 44 (45.4%) | 906 (33.8%) | p < 0.001 |
 | No | 9 (47.4%) | 150 (56.4%) | 53 (54.6%) | 1777 (66.2%) |  |
Radiotherapy (N = 3058) | Yes | 6 (31.6%) | 99 (37.1%) | 43 (44.3%) | 1203 (45.0%) | 0.061 |
 | No | 13 (68.4%) | 168 (62.9%) | 54 (55.7%) | 1472 (55.0%) |  |