Table 8 Analysis of potential bias of 134 next-of-kin interviews in 427 cases
From: Risk factors for nasal malignancies in German men: the South-German Nasal cancer study
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 |