Variable | Coefficient B | Standard Error of B | Wald Statistic | Degrees of freedom | Sig. | Odds Ratio Exp(B) | 95% C.I. for EXP(B) | |
---|---|---|---|---|---|---|---|---|
 |  |  |  |  |  |  | Lower | Upper |
Gender (1 = male, 0 = female) | 1.643 | .830 | 3.916 | 1 | .048 | 5.171 | 1.016 | 26.322 |
GP practice size (0 = 3 or less, 1 = 4 or more) | 1.673 | .672 | 6.189 | 1 | .013 | 5.327 | 1.426 | 19.898 |
Constant | -4.222 | .917 | 21.184 | 1 | .000 | .015 | Â | Â |