Table 1. Descriptive Statistics of the Cohorta.
| Characteristic | Married (n = 36 307) | Never Married (n = 7570) | Divorced (n = 3650) | Widowed (n = 4536) | P Valueb |
|---|---|---|---|---|---|
| Age, median (IQR), y | 64 (53-74) | 54 (38-66) | 62 (53-71) | 82 (75-87) | NA |
| Male, No. (%) | 23 118 (63.7) | 4011 (53.0) | 1753 (48.0) | 1728 (38.1) | <.001 |
| Site, No. (%) | |||||
| Trunk | 12 002 (33.1) | 2707 (35.8) | 1224 (33.5) | 955 (21.1) | <.001 |
| Extremity | 16 000 (44.1) | 3498 (46.2) | 1793 (49.1) | 2208 (48.7) | |
| Head and/or neck | 8305 (22.9) | 1365 (18.0) | 633 (17.3) | 1373 (30.3) | |
| T stage at presentation, No. (%) | |||||
| T1a | 16 603 (45.7) | 3253 (43.0) | 1422 (39.0) | 1461 (32.2) | <.001 |
| T1b | 7466 (20.6) | 1610 (21.3) | 728 (19.9) | 780 (17.2) | |
| T2a | 5284 (14.6) | 1107 (14.6) | 628 (17.2) | 671 (14.8) | |
| T2b | 1253 (3.5) | 243 (3.2) | 145 (4.0) | 212 (4.7) | |
| T3a | 2111 (5.8) | 452 (6.0) | 253 (6.9) | 388 (8.6) | |
| T3b | 1445 (4.0) | 325 (4.3) | 177 (4.8) | 344 (7.6) | |
| T4a | 957 (2.6) | 220 (2.9) | 112 (3.1) | 252 (5.6) | |
| T4b | 1188 (3.3) | 360 (4.8) | 185 (5.1) | 428 (9.4) | |
| Urban/rural, No. (%) | |||||
| Urban (metropolitan) | 31 994 (88.1) | 6880 (90.9) | 3175 (87.0) | 3923 (86.5) | <.001 |
| Urban (nonmetropolitan) | 3833 (10.6) | 616 (8.2) | 415 (11.4) | 539 (11.9) | |
| Rural | 530 (1.5) | 74 (1.0) | 60 (1.6) | 74 (1.6) | |
| Income, median (IQR), $ | 47 200 (38 700-51 600) | 47 200 (38 700-51 500) | 46 500 (38 200-51 300) | 46 500 (38 200-51 300) | <.001 |
| Educational level, median (IQR), % | 83 (86-79) | 83 (86-77) | 83 (86-77) | 83 (16-77) | <.001 |
Abbreviation: IQR, interquartile range.
a
Percentages have been rounded and may not total 100.
b
Calculated using the χ2 test for categorical variables and analysis of variance for others.