Table 1.
Cancer in DC literature cases, 1910-2008
| Characteristics | All cases | No cancer | All cancers* | P† |
|---|---|---|---|---|
| Number of cases (%) | 552 | 500 | 52 with 61 cancers (9.4%) | |
| Male:female (ratio) | 418:133§ (3.1:1) | 376:123§ (3.1:1) | 42:10 (4.2:1) | .5 |
| Median age at cancer, y (range) | NA | NA | 29 (1.5-68) | NA |
| Number deceased (%) | 144/521§ (28%) | 114/469§ (24%) | 30/52 (58%) | .004 |
| Median age at death, y (range) | 21 (2-70) | 17 (2-68) | 29 (19-70) | <.001 |
| Median survival, y, by Kaplan-Meier method (95% CI)‡ | 42 (37-49) | 46 (39-55) | 39 (35-44) | .3 |
NA indicates not applicable.
*
AML was included and MDS was not included in cancers.
†
Comparing those with cancer with those without cancer.
‡
The median survival values for patients with and without cancer describe subgroups defined by time-dependent rather than baseline characteristics; therefore, these values should be interpreted as descriptive characteristics of the population rather than predictive probabilities for individual patients.
§
Some missing data.