Table 1.
Patient characteristics of cohort and sample
| Characteristics | Cohort (%) | Sample (%) |
|---|---|---|
|
Total Number |
8310 (100) |
1672 (100) |
|
Age at diagnosis |
|
|
| Mean [Median] |
69 [70] |
69 [70] |
| <=65 |
3042 (37) |
643 (38) |
| 66-74 |
2172 (26) |
437 (26) |
| >=75 |
3096 (37) |
592 (35) |
|
Stage at diagnosis |
|
|
| I-III |
5500 (66) |
1145 (68) |
| IV or Unknown |
2810 (34) |
527(32) |
|
Type of 1stcolorectal cancer-related visit1 |
|
|
| Late2 event |
2545 (31) |
506 (30) |
| (Pre)Diagnostic event |
5765 (69) |
1166 (70) |
|
Time from diagnosis to death (days)3 |
|
|
| Mean [Median] |
661 [453] |
711 [466] |
| <= 1 month |
491 (11) |
84 (10) |
| 1 - 3 months |
472 (11) |
90(10) |
| >= 3 months | 3431(78) | 710 (80) |
1 Limited to healthcare visits within 1 year prior to diagnosis of colorectal cancer.
2 Late event is defined as a visit that included treatment-related events (e.g., surgery, palliative care) rather than diagnostic or pre-diagnostic events (e.g., radiology, symptoms). Patients who did not have any colorectal cancer-related healthcare visits are also included in this group.
3 Includes only patients who died on or before March 31, 2009.