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Table 3 Parameter estimates from the geo-statistical models of malaria prevalence in children under five years of age in Burkina Faso (2010)

From: Multilevel and geo-statistical modeling of malaria risk in children of Burkina Faso

Variables Model A Model B
OR* (95% CrI) OR* (95% CrI)
Individual level factor   
Age (6–12 months) Reference  
 13-23 months 1.10 (0.89-1.36)  
 24-35 months 1.41 (1.14-1.74)  
 36-47 months 1.70 (1.37-2.10)  
 48-59 months 1.79 (1.44-2.22)  
Household level factors   
Mother’s Education Level§ (No schooling) Reference  
 Primary 0.75 (0.62-0.92)  
 Secondary or higher 0.58 (0.42-0.78)  
Household wealth index (Richest) Referent  
 Richer 1.77 (1.40-2.24)  
 Middle 2.24 (1.73-2.90)  
 Poorer 2.10 (1.61-2.73)  
 Poorest 2.76 (2.09-3.64)  
Rate of attendance to health facilities (>2) Reference  
 1-2 visits per year 1.36 (1.01-1.83)  
 < 1 visit per year 2.21 (1.56-3.13)  
Climatic/Environmental factors   
NDVI (<0.3) Reference Reference
 0.3 - 0.5 1.23 (1.00-1.53) 1.28 (1.03-1.60)
 ≥0.5 1.66 (1.27-2.17) 1.87 (1.42-2.46)
Average monthly rainfall (<50 mm) Reference Reference
 50 - 100 mm 0.69 (0.45-1.05) 0.55 (0.36-0.84)
 ≥100 mm 0.44 (0.26-0.76) 0.33 (0.19-0.58)
Rainfall 60 days prior to survey (<100 mm) 1.75 (1.18-2.58) 1.97 (1.33-2.91)
Maximum temperature (<38.5°C) Reference Reference
 38.5 - 39.5°C 0.74 (0.56-0.98) 0.73 (0.54-0.97)
 ≥39.5°C 0.66 (0.47-0.93) 0.73 (0.51-1.01)
Population density: 100/km2, truncated at 500/km2 1.25 (0.82-1.90) 1.10 (0.72-1.71)
 Population density: squared term 0.93 (0.86-1.01) 0.94 (0.87-1.02)
  Mean (95% CrI) Mean (95% CrI)
Spatial variance 0.48 (0.28-0.83) 0.63 (0.40-1.03)
Range of the spatial effect (km) 8.8 (4.9-15.8) 8.9 (5.2-14.6)
  1. Statistically significant results are in bold.
  2. *OR: Odds Ratio using the category between brackets as reference.
  3. CrI: Credible Intervals.
  4. §210 observations were missing mother’s education information and these were removed from model A.