Table 1.
Demographic/clinical characteristics by cases and controls+
| Cases (n=253) | Controls (n=270) | P-value | |
|---|---|---|---|
| Age (years) | |||
| Mean (range) | 47.9 (16 – 83) | 49.0 (20 – 82) | NS |
| <50 | 137 (54%) | 128 (47%) | |
| ≥50 | 116 (46%) | 142 (53%) | NS |
| Sex | |||
| Female | 121 (48%) | 126 (47%) | |
| Male | 132 (52%) | 144 (53%) | NS |
| Ethnicity | |||
| White | 208 (82%) | 225 (83%) | |
| Hispanic | 26 (10%) | 24 (9%) | |
| African American | 17 (7%) | 17 (6%) | |
| Others | 2 (1%) | 4 (2%) | NS |
| Education | |||
| < High school | 11 (4%) | 14 (5%) | |
| High school/some college | 128 (51%) | 106 (39%) | |
| Bachelor/Graduate | 113 (45%) | 134 (50%) | NS |
| Family History of hematopoietic cancer* | |||
| No | 232 (92%) | 259 (96%) | |
| Yes | 21 (8%) | 10 (4%) | 0.03 |
| Smoking | |||
| Never | 150 (59%) | 146 (54%) | |
| Ever | 103 (41%) | 124 (46%) | 0.23 |
| Mean pack-years | 18.0 | 17.1 | 0.69 |
| Alcohol | |||
| Never | 112 (44%) | 108 (40%) | |
| Ever | 141 (56%) | 162 (60%) | 0.32 |
| Solvent exposure | |||
| None | 137 (54%) | 160 (61%) | |
| Low/medium | 87 (35%) | 80 (30%) | |
| High | 28 (11%) | 24 (9%) | 0.35 |
| Agrochemical exposure | |||
| None | 225 (89%) | 257 (97%) | |
| Low/medium | 15 (6%) | 4 (2%) | |
| High | 12 (5%) | 3 (1%) | 0.001 |
| Ionizing radiation exposure | |||
| No | 190 (75%) | 210 (81%) | |
| Yes | 62 (25%) | 54 (19%) | 0.26 |
+
Data missing for some participants due to incomplete information
*
Hodgkin’s disease, non-Hodgkin’s lymphoma, multiple myeloma, or leukemia in first-degree relatives