Table 3.
Univariable conditional logistic regression results for lymphoma cases versus matched controls
|
Cases (n = 49) |
Controls (n = 98) | ORc | (95%CI) | ||||
|---|---|---|---|---|---|---|---|
| n | (%) | n | (%) | ||||
| Chemical plant | 10 | (20.4%) | 15 | (15.3%) | 1.39 | (0.59—3.29) | |
| Municipal dump | 10 | (20.4%) | 20 | (20.4%) | 1.00 | (0.41—2.43) | |
| Manufacturing planta | 11 | (22.4%) | 15 | (15.3%) | 1.59 | (0.67—3.75) | |
| Incineration plant | 17 | (34.7%) | 22 | (22.4%) | 1.83 | (0.86—3.90) | |
| Railroad embankment track | 27 | (55.1%) | 51 | (52.0%) | 1.13 | (0.57—2.26) | |
| Landfill | 3 | ( 6.1%) | 4 | ( 4.1%) | – | – | |
| Coal plant | 0 | ( 0.0%) | 1 | ( 1.0%) | – | – | |
| High-voltage transmission line | 1 | ( 2.0%) | 2 | ( 2.0%) | – | – | |
| Nuclear power plant | 2 | ( 4.1%) | 2 | ( 2.0%) | – | – | |
| Exposure index (continuous)b | 1 | (0—5) | 1 | (0—5) | 1.18 | (0.92—1.51) | |
| 3 + exposures (y/n) | 15 | (30.6%) | 21 | (21.4%) | 1.62 | (0.74—3.55) | |
| Average ozone | > 70 ppb | 12 | (24.5%) | 35 | (35.7%) | 0.55 | (0.24—1.26) |
| missing | 10 | (20.4%) | 19 | (19.4%) | 0.86 | (0.36—2.05) | |
| Average PM2.5 (ug/m3)b | 8.2 | (5.8—14.0) | 8.4 | (5.7—13.8) | 1.04 | (0.81—1.33) | |
| Secondhand smoke exposure (y/n) | 6 | (12.2%) | 12 | (12.2%) | 1.00 | (0.35—2.83) | |
aManufacturing plant includes rubber, leather or textile manufacturing plants
bmedian (range) shown
cOdds ratios (ORs) and 95% confidence intervals (CIs) are shown