Table 1. Characteristics of patients by marital status, unmarrieda verus married. SEER 2004-2012 (n=16910)b.
| Characteristics | Total | Unmarried | Married | P valuec |
|---|---|---|---|---|
| 16910 (100) | 7028 (41.56) | 9882 (58.44) | ||
| Sex | <0.001 | |||
| male | 9463 (55.96) | 2917 (41.51) | 6546 (66.24) | |
| female | 7447 (44.04) | 4111 (58.49) | 3336 (33.76) | |
| Race | <0.001 | |||
| white | 10298 (60.9) | 4155 (59.12) | 6143 (62.16) | |
| black | 2804 (16.58) | 1673 (23.8) | 1131 (11.45) | |
| American Indian or Alaska Native | 159 (0.94) | 73 (1.04) | 86 (0.87) | |
| Asian or Pacific Islander | 3593 (21.25) | 1111 (15.81) | 2482 (25.12) | |
| Unknown | 56 (0.33) | 16 (0.23) | 40 (0.4) | |
| Age | <0.001 | |||
| 18-27 | 84 (0.5) | 56 (0.8) | 28 (0.28) | |
| 28-37 | 437 (2.58) | 179 (2.55) | 258 (2.61) | |
| 38-57 | 3877 (22.93) | 1379 (19.62) | 2498 (25.28) | |
| 58-69 | 4442 (26.27) | 1549 (22.04) | 2893 (29.28) | |
| 70-84 | 6376 (37.71) | 2770 (39.41) | 3606 (36.49) | |
| 85+ | 1694 (10.02) | 1095 (15.58) | 599 (6.06) | |
| Histotype | <0.001 | |||
| Adenocarcinoma, NOS | 8279 (48.96) | 3561 (50.67) | 4718 (47.74) | |
| Adenocarcinoma, intestinal type | 2435 (14.4) | 1014 (14.43) | 1421 (14.38) | |
| Carcinoma, diffuse type | 1084 (6.41) | 429 (6.1) | 655 (6.63) | |
| Tubular adenocarcinoma | 166 (0.98) | 59 (0.84) | 107 (1.08) | |
| Papillary adenocarcinoma, NOS | 41 (0.24) | 18 (0.26) | 23 (0.23) | |
| Mucinous adenocarcinoma | 311 (1.84) | 147 (2.09) | 164 (1.66) | |
| Signet ring cell carcinoma | 4594 (27.17) | 1800 (25.61) | 2794 (28.27) | |
| Site | 0.026 | |||
| Fundus of stomach | 857 (5.07) | 343 (4.88) | 514 (5.2) | |
| Body of stomach | 2115 (12.51) | 875 (12.45) | 1240 (12.55) | |
| Gastric antrum | 5440 (32.17) | 2295 (32.66) | 3145 (31.83) | |
| Pylorus | 839 (4.96) | 377 (5.36) | 462 (4.68) | |
| Lesser curvature of stomach, NOS | 2207 (13.05) | 891 (12.68) | 1316 (13.32) | |
| Greater curvature of stomach, NOS | 990 (5.85) | 370 (5.26) | 620 (6.27) | |
| Overlapping lesion of stomach | 1892 (11.19) | 777 (11.06) | 1115 (11.28) | |
| Stomach, NOS | 2570 (15.2) | 1100 (15.65) | 1470 (14.88) | |
| TNM Staged | <0.001 | |||
| Stage I | 4468 (26.42) | 1995 (28.39) | 2473 (25.03) | |
| Stage II | 3724 (22.02) | 1537 (21.87) | 2187 (22.13) | |
| Stage III | 4077 (24.11) | 1613 (22.95) | 2464 (24.93) | |
| Stage IV | 4641 (27.45) | 1883 (26.79) | 2758 (27.91) | |
| Cause of Death | <0.001 | |||
| Alive or dead of other cause | 7811 (46.19) | 3068 (43.65) | 4743 (48) | |
| Dead (attributable to this cancer) | 9099 (53.81) | 3960 (56.35) | 5139 (52) | |
| Grade | <0.001 | |||
| Grade I (well differentiated) | 598 (3.54) | 265 (3.77) | 333 (3.37) | |
| Grade II (moderately differentiated) | 3696 (21.86) | 1604 (22.82) | 2092 (21.17) | |
| Grade III ( poorly differentiated) | 10534 (62.29) | 4235 (60.26) | 6299 (63.74) | |
| Grade IV (undifferentiated) | 340 (2.01) | 133 (1.89) | 207 (2.09) | |
| Cell type not determined | 1742 (10.3) | 791 (11.25) | 951 (9.62) | |
| Surgery | <0.001 | |||
| No surgery | 5438 (32.16) | 2572 (36.6) | 2866 (29) | |
| Non-Total or Non-near-total gastrectomy | 8953 (52.95) | 3540 (50.37) | 5413 (54.78) | |
| Total or near total gastrectomy | 2519 (14.9) | 916 (13.03) | 1603 (16.22) | |
| Radiotherapy | <0.001 | |||
| No radiotherapy | 12789 (75.63) | 5591 (79.55) | 7198 (72.84) | |
| Radiotherapy | 3868 (22.87) | 1337 (19.02) | 2531 (25.61) | |
| Radiotherapy unknown | 253 (1.5) | 100 (1.42) | 153 (1.55) |
Abbreviation: NOS= no other specific; SEER=Surveillance, Epidemiology and End Results; IQR=interquartile range.
aIncluding divorced, separated, single (never married), and widowed
bData are presented as No.(percentage) of patients.
cP value of the Chi-square test or Wilcoxon-Mann-Whitney test comparing unmarried and married groups
dBeing restaged according to the criteria of AJCC Cancer Staging Manual (7th edition, 2010)