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Characteristics of sample.
| Missing Grade | Grade Available | |||
|---|---|---|---|---|
| Surgery | No Surgery | Surgery | No Surgery | |
| N | 872 | 2003 | 965 | 410 |
| Age (SD) | 62.0 (11.5) | 68.0 (12.5) | 61.6 (11.4) | 66.0 (12.1) |
| Size in cm (SD) | 8.5 (4.3) | 8.4 (4.0) | 9.1 (4.6) | 8.1 (4.2) |
| Female | 29% | 39% | 32% | 35% |
| Married | 71% | 57% | 69% | 63% |
| Non-white | 12% | 17% | 13% | 15% |
| Diagnosed 1988-1992 | 27% | 39% | 22% | 22% |
| Diagnosed 1993-1997 | 36% | 27% | 41% | 27% |
| Diagnosed 1998-2002 | 38% | 34% | 37% | 51% |
| Grade=1 | 5% | 10% | ||
| Grade=2 | 28% | 24% | ||
| Grade=3 or grade=4 | 66% | 65% | ||
