Table I.
Baseline demographic and tumor characteristics of patients with PCa included in the SEER database between 2004–2009.
| Patient characteristics | Total | Married, n (%) | Never married, n (%) | Divorced/separated, n (%) | Widowed, n (%) | P-value |
|---|---|---|---|---|---|---|
| Cases | 95,846 | 78,244 | 9,072 | 6,627 | 1,903 | |
| Age (years) | <0.001 | |||||
| ≤50 | 6,277 | 4,703 (6.0) | 1,078 (11.9) | 468 (7.1) | 28 (1.5) | |
| 51–65 | 64,529 | 52,525 (67.1) | 6,320 (69.7) | 4,793 (72.3) | 891 (46.8) | |
| ≥66 | 25,040 | 21,016 (26.9) | 1,674 (18.5) | 1,366 (20.6) | 984 (51.7) | |
| Ethnicity | <0.001 | |||||
| White | 79,211 | 66,002 (84.4) | 6,605 (72.8) | 5,086 (76.7) | 1,518 (79.8) | |
| African-American | 11,431 | 7,785 (9.9) | 2,049 (22.6) | 1,305 (19.7) | 292 (15.3) | |
| Othera | 5,204 | 4,457 (5.7) | 418 (4.6) | 236 (3.6) | 93 (4.9) | |
| Grade | <0.001 | |||||
| Well/moderately | 39,512 | 32,435 (41.5) | 3,774 (41.6) | 2,594 (39.1) | 709 (37.3) | |
| Poorly/undifferentiated | 56,200 | 45,710 (58.4) | 5,281 (58.2) | 4,022 (60.7) | 1,187 (62.4) | |
| Unknown | 134 | 99 (0.1) | 17 (0.2) | 11 (0.2) | 7 (0.4) | |
| SEER historic stage A | 0.021 | |||||
| Localized/regional | 95,187 | 77,706 (99.3) | 9,004 (99.3) | 6,593 (99.5) | 1,884 (99.0) | |
| Distant | 146 | 120 (0.2) | 10 (0.1) | 8 (0.1) | 8 (0.4) | |
| Unstaged | 513 | 418 (0.5) | 58 (0.6) | 26 (0.4) | 11 (0.6) | |
| Sequence number | <0.001 | |||||
| One primary only | 88,407 | 72,070 (92.1) | 8,466 (93.7) | 6,162 (93.0) | 1,709 (89.8) | |
| 1st of 2 or more primaries | 7,439 | 6,174 (7.9) | 606 (6.7) | 465 (7.0) | 194 (10.2) | |
| GS | <0.001 | |||||
| ≤6 | 36,893 | 30,386 (38.8) | 3,468 (38.2) | 2,400 (36.2) | 639 (33.6) | |
| 7 | 45,581 | 37,074 (47.4) | 4,367 (48.1) | 3,216 (48.5) | 924 (48.6) | |
| ≥8 | 9,483 | 7,670 (9.8) | 845 (9.3) | 714 (10.8) | 254 (13.3) | |
| Unknown | 3,889 | 3,114 (4.0) | 392 (4.3) | 297 (4.5) | 86 (4.5) | |
| Follow-up (months)b | 78.3 | 78.7 | 76.6 | 76.8 | 77.0 | <0.001 |
a
Refers to American Indian/AK Native, Asian/Pacific Islander and unknown
b
one-way analysis of variance. PCa, prostate cancer; SEER, Surveillance, Epidemiology, and End Results; GS, Gleason score.