Table 2.
Characteristics of study participants (N = 1115)
| Characteristics | Patients, no. (%) | Controls, no. (%) | P |
|---|---|---|---|
| Age, y | .60 | ||
| Less than 40 | 43 (8.30) | 51 (8.54) | |
| 40-49 | 59 (11.39) | 66 (11.06) | |
| 50-59 | 109 (21.04) | 109 (18.26) | |
| 60-69 | 132 (25.48) | 144 (24.12) | |
| 70+ | 175 (33.78) | 227 (38.02) | |
| Race | .14 | ||
| White | 497 (95.95) | 561 (93.97) | |
| Non-Hispanic | 483 (93.24) | 547 (91.62) | |
| Hispanic | 12 (2.32) | 14 (2.34) | |
| Unknown | 2 (0.39) | 0 (0) | |
| African American | 16 (3.09) | 17 (2.85) | |
| Other | 5 (0.97) | 19 (3.18) | |
| Family history* | .06† | ||
| None | 110 (21.24) | 147 (24.62) | |
| NHL | 9 (1.74) | 3 (0.50) | |
| Other cancer | 399 (77.03) | 447 (74.87) | |
| DNA source | .74 | ||
| Blood | 461 (89.00) | 535 (89.61) | |
| Buccal cells | 57 (11.00) | 62 (10.39) | |
| Case pathology | NA | ||
| All B cell | 411 (79.34) | NA | |
| DLBCL | 161 (31.08) | NA | |
| Follicular | 119 (22.97) | NA | |
| SLL/CLL | 59 (11.39) | NA | |
| MZBL | 35 (6.76) | NA | |
| Other | 37 (7.14) | NA | |
| All T cell | 39 (7.53) | NA | |
| NOS | 68 (13.13) | NA |
For patients, N = 518; for controls, N = 597.
NHL indicates non-Hodgkin lymphoma; DLBCL, diffuse large B-cell lymphoma; CLL/SLL, B-cell chronic lymphocytic leukemia/prolymphocytic leukemia/small lymphocytic lymphoma; MZBL, marginal zone B-cell lymphoma; NA, not applicable; and NOS, not otherwise specified.
*
Family history of cancer in first- and second-degree relatives.
†
Exact test.