Table 3.
Multivariable random-effects logistic regression model of determinants of malaria parasitemia in children 6–30 months of age from sub-national Anemia and Parasitemia surveys, Malawi, 2005–2009
| Parameter | Odds ratio | 95% CI |
|---|---|---|
| Any ITNs in household | 0.81* | 0.72–0.92 |
| Household wealth quintile | ||
| Lowest (reference) | 1 | |
| Second | 0.89 | 0.76–1.04 |
| Middle | 0.91 | 0.78–1.07 |
| Fourth | 0.77* | 0.64–0.92 |
| Highest | 0.46* | 0.37–0.58 |
| Age (months) | 1.03* | 1.02–1.04 |
| Mean rainfall anomaly, February/March | 1.00 | 1.00–1.01 |
| Mean minimum temperature anomaly, February/March | 1.29 | 0.96–1.72 |
| Year† | ||
| 2005 (reference) | 1 | |
| 2007 | 1.95 | 0.97–3.90 |
| 2008 | 0.68 | 0.26–1.80 |
| 2009 | 0.34* | 0.12–0.96 |
| Region | ||
| Northern region (reference) | 1 | |
| Central region | 11.45* | 4.10–32.03 |
| Southern region | 8.60* | 2.98–24.87 |
| Year/region interaction | ||
| 2007 × Central | 0.88 | 0.32–2.41 |
| 2007 × Southern | 0.09* | 0.02–0.37 |
| 2008 × Central | 0.82 | 0.25–2.64 |
| 2008 × Southern | 0.55 | 0.16–1.92 |
| 2009 × Central | 1.77 | 0.56–5.56 |
| 2009 × Southern | 2.43 | 0.85–6.96 |
CI = confidence interval; ITN = insecticide-treated net.
*
Significant at P < 0.05.
†
2006 parasitemia data were not available for this analysis.