Table 1. Baseline demographic and tumor characteristics of patients in SEER database.
| Characteristic | Married | Windowed | Single | Divorced/separated | Total | Chi-square(χ2) | P-value | |
|---|---|---|---|---|---|---|---|---|
| n=808 N (%) |
n=119 N (%) |
n=226 N (%) |
n=136 N (%) |
n=1289 N (%) |
||||
| Sex | 55.037 | <0.001 | ||||||
| Male | 438(54.20) | 26(21.8) | 106(46.90) | 47(34.60) | 617(47.90) | |||
| Female | 370(45.80) | 93(78.20) | 120(53.10) | 89(65.40) | 672(52.10) | |||
| Age | 89.456 | <0.001 | ||||||
| <=50 | 216(26.70) | 2(1.70) | 110(48.70) | 35(25.70) | 363(28.20) | |||
| >50 | 592(73.30) | 117(98.30) | 116(51.30) | 101(74.30) | 926(71.80) | |||
| Race | 44.221 | <0.001 | ||||||
| White | 606(76.70) | 97(81.50) | 160(71.40) | 95(70.40) | 958(75.60) | |||
| Black | 87(11.00) | 14(11.80) | 53(23.70) | 31(23.00) | 185(14.60) | |||
| Other | 97(12.3) | 8(6.70) | 11(4.90) | 9(6.70) | 125(9.90) | |||
| Primary site | 24.592 | <0.001 | ||||||
| Colon | 437(54.10) | 89(74.80) | 117(51.80) | 89(65.40) | 732(56.80) | |||
| Rectum | 371(45.90) | 30(25.20) | 109(48.20) | 47(34.60) | 557(43.20) | |||
| Grade | 55.811 | <0.001 | ||||||
| Grade I | 494(61.10) | 44(37.00) | 137(60.60) | 77(56.60) | 752(58.30) | |||
| Grade II | 121(15.00) | 13(10.90) | 36(15.90) | 14(10.30) | 184(14.30) | |||
| Grade III | 160(19.80) | 51(42.90) | 36(15.90) | 31(22.80) | 278(21.60) | |||
| Grade IV | 33(4.10%) | 11(9.20) | 17(7.50) | 14(10.30) | 75(5.80) | |||
| Tumor size | 26.463 | <0.001 | ||||||
| <=2cm | 438(54.20) | 38(31.90) | 126(55.80) | 58(42.60) | 660(51.20) | |||
| >2cm | 370(45.80) | 81(68.10) | 100(44.20) | 78(57.40) | 629(48.80) | |||
| Histological stage | 27.481 | <0.001 | ||||||
| Localized | 406(50.20) | 37(31.10) | 129(57.10) | 56(41.20) | 628(48.70) | |||
| Distant | 185(22.90) | 43(36.10) | 52(23.00) | 38(27.90) | 318(24.70) | |||
| Regional | 217(26.90) | 39(32.80) | 45(19.90) | 42(30.90) | 343(26.60) | |||
| Surgery | 3.165 | 0.367 | ||||||
| Not performed | 67(8.30) | 11(9.20) | 26(11.50) | 9(6.60) | 113(8.80) | |||
| Performed | 741(91.70) | 108(90.80) | 200(88.50) | 127(93.40) | 1176(91.20) | |||
| CSS status | 33.460 | <0.001 | ||||||
| Live | 640(79.21) | 66(55.46) | 178(78.76) | 105(77.21) | 989(76.73) | |||
| Dead | 168(20.79) | 53(44.53) | 48(21.24) | 31(22.79) | 300(23.23) | |||