Table 4

Non-malignant respiratory disease (excluding influenza and pneumonia) matched, ORs (95% CIs) from conditional logistic regression analysis adjusted for sociodemographic and cumulative exposure-days (observations (n=68), informative strata (n=19))

OR (95% CI)
Subject characteristics:
    Education (y):
        ≥121.000
        8–110.59 (0.00 to 7.57)
        <80.29 (0.03 to 1.56)
    Marital status:
        Married1.000
        Widowed, divorced, separated2.14 (0.41 to 15.32)
        Never married1.75 (0.04 to + Inf)
    Smoking (cigarettes):
        Never smoked1.000
        Smoked for 6 months or more1.88 (0.24 to + Inf)
Cumulative exposure days (concentration×days of exposure)
    Respirable fibres (fibres/ml):
        <1001.000
        100–299.990.63 (0.01 to 19.37)
        ≥300 (max=687.7)0.49 (0.01 to 14.19)
    Talc (fibres/ml):
        01.000
        >0 (max=66.7)1.31 (0.19 to 17.76)
    Respirable silica (mg/m3):
        01.000
        0.03–0.9991.01 (0.00 to 15.85)
        1–9.91.71 (0.06 to 148.77)
        10–99.93.96 (0.14 to 431.06)
        ≥100 (max=6664.8)1.77 (0.03 to 183.11)