Table 4

Multivariate regression with predicted wetness and elevation variables



Kipsamoite
Kapsisiywa

Type of model
Variables in model
OR
95% CI
OR
95% CI

Predicted wetness or elevation variables alone
Distance to very high predicted wetness
0.920
0.885
0.957
0.903
0.857
0.953

Household elevation
0.422
0.251
0.710
0.677
0.293
1.564

Distance to very low elevation
0.958
0.935
0.982
1.009
0.999
1.019

Predicted wetness and elevation variables jointly
Distance to very high predicted wetness
0.925
0.888
0.964
0.874
0.826
0.925

Household elevation
0.686
0.401
1.174
3.552
1.475
8.550

Distance to very high predicted wetness
0.923
0.884
0.963
0.897
0.854
0.942

Distance to very low elevation
0.985
0.960
1.012
1.012
1.002
1.023

Odds ratios for the presence or absence of household malaria associated with a 100 m increase in distance or elevation, entering variables singly and jointly into multivariate logistic regression models. Models control for year and person-time.

Cohen et al. Malaria Journal 2008 7:40   doi:10.1186/1475-2875-7-40