Table 2 Predictors of malaria risk obtained from mixed-effects logistic regression analysis, Butajira area, Ethiopia, October 2008 to June 2010
From: Malaria risk factors in Butajira area, south-central Ethiopia: a multilevel analysis
Fixed-effects | Unadj. OR (95% CI) | Adj. OR (95% CI) | |
|---|---|---|---|
Age groups | |||
<5 | 3.71 (2.49-5.52)** | 3.62 (2.43-5. 40)** | |
5-9 | 3.40 (2.30-5.02)** | 3.39 (2.30-5.01)** | |
10-14 | 1.48 (0.87-2.51) | 1.49 (0.88-2.53) | |
Gender | |||
Male | 1.33 (0.99-1.79) | 1.24 (0.92-1.67) | |
Altitudinal strata | |||
1,800-1,899 m | 5.12 (3.29-7.98)** | 5.22 (2. 67–10.22)** | |
IOR-80% | (3.74-7.24) | ||
1,900-1,999 m | 3. 63 (2.02-6.52)** | 3.80 (2.09-6.91)** | |
IOR-80% | (2.72-5.26) | ||
Wealth group | |||
Lowest | 2.02 (1.03-3.94) | 0.75 (0.37-1.53) | |
Middle | 1.32 (0.78-2.22) | 1.00 (0.59-1.69) | |
House status | |||
Dilapidated | 1.00 (0.60-1.66) | 1.00 (0.60-1.67) | |
Holes | 1.57 (1.11-2.22)* | 1.59 (1.12-2.26)* | |
IOR-80% | (1.14-2.22) | ||
Seasons | |||
October-November 2008 | 7.95 (3.94-16.01)** | 7.84 (3.89-15.81)** | |
IOR-80% | (5.64-10.91) | ||
January.-February 2009 | 2.35 (1.05-5.25)* | 2.33 (1.04-5.21)* | |
IOR-80% | (1.68-3.16) | ||
June-July 2009 | 3.76 (1.94-7.30)** | 3.83 (1.97-7.43)** | |
IOR-80% | (2.74-5.31) | ||
October-November 2009 | 7.68 (4.25-13.88)** | 7.71 (4.26-13.93)** | |
IOR-80% | (5.53-10.70) | ||
January.-February 2010 | 2.93 (1.54-5.54)* | 3.05 (1.61-5.77)* | |
IOR-80% | (2.18-4.22) | ||
Parameters/Models | Empty [95%CI] (SE) | Individual-predictor [95%CI] (SE) | Final [95%CI] (SE) |
Fixed-effects | |||
Village intercept | 0.81 [0.49-1.31] (0.25) | 0.11 [0.06-0.18] (0.28) | 0.01 [0.006-0.03] (0.37) |
Village intercept variance | 0.80 [0.32-2.01] (0.21) | 0. 71 [0.28-1.82] (0.34) | 0.034 [0.002-0.615] (0.05) |
Random- effects | |||
ICC (%) | 19.5 | 17.7 | 1.0 |
MOR | 2.34 (0.21) | 2.23 (0.34) | 1.19 (0.05) |
PCV (%) | - | 11.2 | 95.7 |