Table 1 Characterization of study participants stratified by NHL case- control status: demographics and selected medical history
From: Occupational exposures and non-Hodgkin's lymphoma: Canadian case-control study
| Â | NHL (N = 513) | Controls (N = 1506) | ORb adj [P1](95% CI) |
|---|---|---|---|
Demographics | Â | Â | Â |
   Mean age ± SD (years) | 57.7 ± 14.0 | 54.1 ± 16.0 |  |
   Education Levela |  |  |  |
University and Vocational | 28 (6.6) | 96 (5.5) | 1.23 (0.81, 1.88) |
University | 94 (18.5) | 310 (20.8) | 1.08 (0.68, 1.70) |
Vocational | 111 (21.9) | 358 (24.1) | 1.06 (0.67, 1.70) |
Elementary/High school | 274 (54.0) | 723 (48.6) | 1.00 |
   Ever lived/worked on a farm |  |  |  |
Yes n (%) | 235 (45.8) | 673 (44.7) | 1.02 (0.82, 1.27) |
No n (%) | 278 (54.2) | 833 (55.3) | 1.00 |
Medical History | Â | Â | Â |
   Previous diagnosis of Cancer |  |  |  |
Yes n (%) | 74 (14.4) | 87 (5.8) | 2.56 (1.81, 3.62) c |
No n (%) | 439 (85.6) | 1419 (94.2) | 1.00 |