Table 4: Logistic regression analysis: interactions between MnSOD and CAT, iNOS and CAT,  GSTM1 and smoking, iNOS and smoking, and iNOS and log-cumulative asbestos exposure.

OR95% CI value

MnSOD −9Ala/Val + Val/Val versus Ala/Ala0.590.39–0.910.016
CAT −262 TT versus CT + CC0.530.17–1.620.266
Interaction4.491.08–18.610.038
iNOS LL versus SL + SS1.080.75–1.550.687
CAT −262 TT versus CT + CC0.630.24–1.660.354
Interaction4.781.15–19.810.031
GSTM1-null versus present0.630.39–1.020.062
Smoking0.550.32–0.960.036
Interaction#2.671.31–5.460.007
iNOS LL versus SL + SS0.850.53–1.370.505
Smoking0.700.43–1.130.143
2.000.99–4.030.054
iNOS LL versus SL + SS1.911.07–3.420.030
Log cumulative exposure4.252.79–6.460.000
Interaction*0.550.31–0.970.037

Interaction: MnSOD −9Ala/Val + Val/Val versus Ala/Ala CAT −262 TT versus CT + CC.
Interaction: iNOS LL versus SL + SS CAT −262 TT versus CT + CC.
Interaction: GSTM1-null versus present smoking (ever/never). Interaction: iNOS LL versus SL + SS smoking (ever/never).
Interaction: iNOS LL versus SL + SS log cumulative exposure.