Table 8

Analysis of potential bias of 134 next-of-kin interviews in 427 cases
Prevalence (%) in interviews conducted with: Chi2 p
Case Next-of-kin
Educational attainment
Primary school or less 66.6 70.2 0.61 0.74
Secondary school 18.4 17.2
College 15.0 12.7
Use of tobacco products
Smoking (ever) 66.9 71.6 0.96 0.33
Nasal snuff (ever) 6.25 6.72 0.03 0.85
Exposures
Exposure to hardwood dust 12.9 0 18.9 <0.0001
Exposure to asbestos (ever) 15.4 16.4 0.078 0.78
Exposure to solvents (ever) 35.5 31.3 0.70 0.40
Residential use of insecticides 17.8 17.9 0.002 0.97
Nasal lavage/nasal sprays 11.3 12.7 0.16 0.69

Greiser et al.

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

Open Data