Table 2.

Characteristics of selected demographic and exposure variables in CBP cases and healthy controls

VariablesCases
Controls
P*
n (%)n (%)
Total152 (100.0)152 (100.0)
Age (y)0.36
    ≤2511 (7.2)6 (3.9)
    26-3558 (38.2)50 (32.9)
    36-4562 (40.8)69 (45.4)
    >4521 (13.8)27 (17.8)
Sex0.64
    Male61 (40.1)57 (37.5)
    Female91 (59.9)95 (62.5)
Exposure duration (y)0.25
    ≤526 (17.1)33 (21.7)
    >5 and ≤1047 (30.9)50 (32.9)
    >10 and ≤1530 (19.7)29 (19.1)
    >16 and ≤2022 (14.5)26 (17.1)
    >2027 (17.8)14 (9.2)
Intensity of exposure (mg/m3)0.59
    ≤4028 (18.4)33 (21.7)
    41-10093 (61.2)94 (61.8)
    >10031 (20.4)25 (16.5)
Smoking0.04
    Yes19 (12.5)34 (22.4)
    No126 (82.9)117 (77.0)
    No data7 (4.6)1 (0.6)
Alcohol consumption0.79
    Yes18 (11.8)17 (11.2)
    No129 (84.9)134 (88.2)
    No data5 (3.3)1 (0.6)
Type of work0.91
    Painting62 (40.8)58 (38.2)
    Spraying25 (16.4)28 (18.4)
    Painting and spraying18 (11.8)16 (10.5)
    Printing4 (2.6)7 (4.6)
    Mechanic13 (8.6)10 (6.6)
    Warehouseman3 (2.0)5 (3.3)
    Other27 (17.8)28 (18.4)
  • * Pearson χ2 test for difference in distributions between the case and control groups.