Table 1

 Frequency distributions of demographic and life style characteristics in female workers by non-fabrication (non-fab) and fabrication (fab) work areas

Demographic and lifestyle characteristicsNon-fabFab
EtchingThin filmPhotolithographyDiffusion
Number of workers13316312774109
Age (%)
    <23 years9.828.844.128.438.5
    23–29 years48.144.236.239.241.3
    >29 years42.127.019.732.420.2
Education (%)
    High school44.486.579.585.196.3
    College/university55.613.520.514.93.7
Current smoking (%)
    No99.296.392.195.994.5
    Yes0.83.77.94.15.5
Current drinking (%)
    No65.462.664.667.665.1
    Yes34.637.435.432.434.9
Current coffee (%)
    No33.838.041.750.042.2
    Yes66.262.058.350.057.8
Current tea (%)
    No15.018.411.827.016.5
    Yes85.081.688.273.083.5
Extra work (%)
    No73.761.345.745.964.2
    Yes26.338.754.354.135.8
Work pattern (%)
    Weekday work (8 am–6 pm)53.45.55.512.23.7
    Day work (7 am–7 pm)42.964.436.247.324.8
    Night work (7 pm–7 am)3.830.158.340.571.6
Stress level classified by psychiatric score (%)
    Low54.141.744.940.538.5
    Medium31.641.739.440.543.1
    High14.316.615.718.918.3
Body mass index (%)
    <19 kg/m227.828.229.131.127.5
    19–24 kg/m259.456.457.552.765.1
    >24 kg/m212.815.313.416.27.3
Pregnancy history (%)
    No57.156.471.758.166.1
    Yes42.943.628.341.933.9