Table 5

Association of exposure to asbestos with nasal malignancies
Controls (%) Cases (%) OR (95% CI)
All study participants
Reference* 2105 (87.7) 360 (84.3) 1.0
Ever exposed for at least 1 year§ 296 (12.3) 67 (15.7) 0.81 (0.47–1.39)
Per year of exposure§ 296 (12.3) 67 (15.7) 1.02 (1.00–1.04)
Exposure (tertiles) < 5 years 92 (3.8) 11 (2.6) 0.55 (0.24–1.24)
5 < 14 years 106 (4.4) 26 (6.1) 1.13 (0.56–2.28)
14+ years 98 (4.1) 30 (7.0) 1.34 (0.32–5.59)
Smokers
Reference* 1237 (87.4) 246 (84.5) 1.0
Ever exposed for at least 1 year§ 178 (12.6) 46 (15.8) 1.23 (0.74–1.91)
Per year of exposure§ 178 (12.6) 46 (15.8) 1.03 (1.01–1.06)
Exposure (tertiles) < 5 years 58 (4.1) 8 (2.7) 0.75 (0.31–1.84)
5 < 14 years 66 (4.7) 14 (4.8) 0.93 (0.48–1.84)
14+ years 54 (3.8) 24 (8.2) 2.30 (1.17–4.53)
Never-smokers
Reference* 868 (88.0) 114 (84.4) 1.0
Ever exposed for at least 1 year§ 118 (12.0) 21 (15.6) 0.41 (0.08–2.03)
Per year of exposure§ 118 (12.0) 21 (15.6) 1.17 (0.42–3.28)
Exposure (tertiles) < 5 years 34 (3.4) 3 (2.2) 0.59 (0.15–2.28)
5 < 14 years 40 (4.1) 12 (8.9) 1.17 (0.42–3.28)
14+ years 44 (4.5) 6 (4.4) 0.60 (0.15–2.29)

* never exposed to asbestos.

§daily/several days per week.

Adjustments: Year of birth, community size, educational attainment, pack-years (all study participants), snuff package-years, years of exposure to hardwood dust, organic solvents, use of nasal spray/nasal lavage and ever-use of insecticides in residences.

Greiser et al.

Greiser et al. BMC Cancer 2012 12:506   doi:10.1186/1471-2407-12-506

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