Table 6

The probability of chloroquine therapeutic failiure as a function of transmission level and spraying history: variables in the equation



B
S.E.
Wald
df
Sig.
*Exp(B)
95.0% C.I. for EXP(B)








Lower
Upper

Step 1(a)
Transmission level (1)
-1.863
0.419
19.780
1
0.000
0.155
0.068
0.353

Last annual spraying (1)
1.411
0.409
11.879
1
0.001
4.099
1.838
9.142

Study year


13.037
4
0.011




Study year (1)
-0.728
0.290
6.317
1
0.012
0.483
0.274
0.852

Study year (2)
-0.400
0.317
1.589
1
0.207
0.671
0.360
1.248

Study year (3)
-0.224
0.440
0.259
1
0.611
0.799
0.338
1.892

Study year (4)
0.262
0.445
0.346
1
0.556
1.299
0.543
3.109

Constant
-0.157
0.407
0.149
1
0.700
0.855



a Variable(s) entered on step 1: Transmission, Last annual spraying, Study year.

* corresponds to odds ratio for therapeutic failure

Mharakurwa et al. Malaria Journal 2004 3:35   doi:10.1186/1475-2875-3-35