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Table 2 Univariate and multivariable analysis of risk factors associated with malaria in children between 6 and 59 months of age in Kinshasa, stratified by malaria transmission zone, 2011

From: Identifying risk factors for Plasmodium infection and anaemia in Kinshasa, Democratic Republic of Congo

  <10 % prevalence   >10 % prevalence Interaction by transmission zone
Univariate analysis Multivariate analysis Univariate analysis Multivariate analysis
Variable n (%) OR 95 % CI p value OR 95 % CI p value n (%) OR 95 % CI p value OR 95 % CI p value p value
Sex
Male 521 3.1 1    1    1141 23.6 1    1    
Female 527 2.7 0.86 0.42–1.8 0.687 0.87 0.41–1.88 0.731 1162 23.3 1.01 0.84–1.23 0.886 0.98 0.80–1.21 0.857 0.670
Age (months)
6–35 446 0.7 1    1    958 17.8 1    1    
36–47 416 3.1 4.76 1.35–16–84   5.86 1.62–21.17   872 25.5 1.57 1.26–1.97   1.73 1.36–2.20   
48–59 186 7.5 12.02 3.41–42.34 <0.001 15.53 4.26–56.64 <0.001 473 31.1 2.08 1.61–2.68 <0.001 2.54 1.93–3.35 <0.001 0.009
Reported treated bed net use
No 446 3.6 1    1    1342 27.6 1    1    
Yes 596 2.3 0.65 0.31–1.34 0.240 0.82 0.38–1.76 0.606 961 17.6 0.56 0.46–0.69 <0.001 0.62 0.50–0.77 <0.001 0.705
Fever in the last 2 weeks
No 798 1.6 1    1    1744 18.3 1    1    
Yes 245 6.9 4.50 2.15–9.41 <0.001 5.53 2.52–12.11 <0.001 559 39.4 2.89 2.34–3.56 <0.001 2.94 2.36–3.68 <0.001 0.254
Education of the respondent
No education 24 8.3 1    1    220 32.3 1    1    
Primary 390 3.6 0.41 0.09–1.92   0.35 0.07–1.82   1135 26.5 0.76 0.55–1.03   0.90 0.65–1.26   
Secondary 471 2.8 0.31 0.07–1.47   0.28 0.05–1.50   740 19.7 0.52 0.37–0.72   0.78 0.54–1.14   
Superior and above 163 0.6 0.07 0.01–0.78 0.080 0.05 0.00–0.68 0.084 208 10.6 0.25 0.15–0.42 < 0.001 0.47 0.26–0.86 0.056 0.754
Occupation of the respondent
Without occupation 720 2.8 1    1    1523 23.2 1    1    
Manual labour 86 2.3 0.83 0.19–3.63   0.98 0.21–4.47   212 27.8 1.27 0.92–1.76   1.29 0.91–1.84   
Self employed 104 3.8 1.40 0.47–4.18   1.58 0.49–5.11   275 24.7 1.08 0.80–1.46   1.01 0.74–1.38 0.236  
Employed 138 2.9 1.04 0.35–3.11 0.931 1.79 0.51–6.31 0.742 293 20.1 0.83 0.61–1.13 0.229 1.35 0.95–1.94   0.860
Wealth tertile
Poorest 196 4.1 1    1    1175 31.6 1       
Middle 298 3.0 0.73 0.28–1.93   0.72 0.26–2.04   575 19.5 0.52 0.41–0.67   0.54 0.42–0.70   
Wealthiest 546 2.4 0.57 0.23–1.40 0.488 0.82 0.31–2.13 0.828 540 9.44 0.23 0.17–0.31 <0.001 0.27 0.20–0.38 <0.001 0.142