Table 4.

Serum GST-α concentration in healthy controls (n = 482) in categories of potential influencing factors in the EPIC-Heidelberg nested case-control study

nGeometric mean (95% CI)P
Smoking status
    Never1614.21 (3.58-4.95)
    Former2374.18 (3.66-4.78)
    Current844.90 (3.91-6.14)
0.47
Educational attainment
    None/primary1564.10 (3.48-4.84)
    Secondary/technical1484.13 (3.49-4.89)
    University1784.65 (3.98-5.44)
0.47
Alcohol intake (g/d)
    <5.0934,27 (3.46-5.28)
    5.0-19.91574.22 (3.58-4.97)
    20.0-29.9743.18 (2.51-4.03)
    30.0-59.91064.75 (3.90-5.80)
    ≥60525.85 (4.41-7.77)
0.02
GSTM1
    pres/pres474.51 (3.34-6.10)
    pres/del1734.50 (3.85-5.26)
    del/del2614.15 (3.65-4.71)
0.69
GSTT1
    pres/pres1604.06 (3.45-4.78)
    pres/del2454.13 (3.63-4.71)
    del/del775.54 (4.39-7.00)
0.07
GSTP1
    AA2114.17 (3.62-4.81)
    AG2244.28 (3.73-4.91)
    GG475.12 (3.79-6.91)
0.48
GSTA1
    GG1444.47 (3.77-5.31)
    GA2424.27 (3.74-4.88)
    AA964.15 (3.37-5.13)
0.85

NOTE: P value for difference of adjusted means.