Table 1.
NHL study participants
|
Cases
|
Controls
|
|||
|---|---|---|---|---|
| Characteristic | No. | % | No. | % |
| No. | 1172 | 100 | 982 | 100 |
| Age | ||||
| Younger than 55 y | 467 | 39.9 | 337 | 34.4 |
| 55-64 y | 319 | 27.2 | 240 | 24.4 |
| 65 y or older | 386 | 32.9 | 405 | 41.2 |
| Race | ||||
| White | 1006 | 85.9 | 787 | 80.1 |
| African American | 82 | 7.0 | 130 | 13.4 |
| Other | 84 | 7.1 | 65 | 4.5 |
| Sex | ||||
| Male | 643 | 54.9 | 516 | 52.7 |
| Female | 529 | 45.1 | 466 | 47.3 |
| Participation | N/A | 76 | N/A | 52 |
| Study site | ||||
| Detroit | 241 | 20.5 | 173 | 17.6 |
| Iowa | 338 | 28.9 | 281 | 28.5 |
| Los Angeles | 295 | 25.2 | 251 | 25.6 |
| Seattle | 298 | 25.4 | 277 | 28.3 |
| NHL tumor pathology | ||||
| All B-cell | 955 | 81.5 | NA | NA |
| Follicular | 280 | 23.9 | NA | NA |
| Diffuse large B-cell | 371 | 31.7 | NA | NA |
| Small lymphocytic | 148 | 12.6 | NA | NA |
| Marginal zone* | 95 | 8.1 | NA | NA |
| Mantle cell | 43 | 3.7 | NA | NA |
| Burkitt lymphoma | 18 | 1.5 | NA | NA |
| All T-cell† | 73 | 6.2 | NA | NA |
| Not specified | 144 | 12.3 | NA | NA |
NA indicates not applicable.
*
Includes mucosa-associated lymphoid tissue (MALT) (n = 62) and marginal zone (n = 33).
†
Includes mycoses fungoides.