TABLE 2.

Stepwise multivariable logistic regression analysis for predicting blood source among 131 fecal or blood isolates of Escherichia coli from veterans

VariableaStep of entry in modelP valueOdds ratio95% Confidence interval
ompT1<0.00159.911.34-315.8
pic20.0040.040.005-0.36
iutA30.0086.91.7-28.6
Group B240.0010.030.004-0.2
F16 papA allele50.0070.0070.000-0.2
papA60.0175.11.3-19.6
sfa and/or foc70.0395.41.9-26.9
  • a Variables shown are those that yielded P < 0.05 when entered into the stepwise model along with previously entered traits. Definitions are as in Table 1, footnotes a and b. The newly detected trait (pic) is shown in bold type.