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Table 4 Posterior median and 95 % Bayesian credible intervals (BCI) of the geostatistical model based on environmental/climatic, malaria intervention coverage and SES predictors

From: Assessing the effects of malaria interventions on the geographical distribution of parasitaemia risk in Burkina Faso

  Geostatistical model 1 Geostatistical model 2 Geostatistical model 3
Variables OR (95 % BCI) OR (95 % BCI) OR (95 % BCI)
 LSTN 0.78 (0.69, 0.88) 0.81 (0.72, 0.90) 0.82 (0.72, 0.93)
 Rice field proximity 0.49 (0.27, 0.81) 0.56 (0.34, 0.98) 0.73 (0.43, 0.99)
  No 1.00 1.00 1.00
  Yes 0.49 (0.27, 0.81) 0.56 (0.34, 0.98) 0.73 (0.43, 0.99)
Area type
 Urban 1 1 1
 Rural 3.91 (2.88, 5.22)  2.50 (1.89, 3.35) 2.36 (1.79, 3.13)
SES
 Most poor   1 1
 Very poor   0.76 (0.61, 0.95) 0.77 (0.61, 0.96)
 Poor   0.90 (0.71, 1.14) 0.92 (0.73, 1.16)
 Less poor   0.70 (0.55, 0.89) 0.71 (0.56, 0.90)
 Least poor   0.32 (0.24, 0.43) 0.33 (0.25, 0.45)
Age (years)
 0–1   1 1
 1–2   1.56 (1.23, 1.56) 1.21 (0.95, 1.55)
 2–3   1.72 (1.35, 2.21) 1.71(1.33, 2.19)
 3–4   1.88 (1.48, 2.41) 1.87 (1.47, 2.39)
 4–5   2.08 (1.62, 2.67) 2.07 (1.61, 2.65)
Mother’s education
 No education   1 1
  Primary   1.08 (0.89, 1.31) 0.85 (0.71, 1.03)
  Secondary   1.06 (0.74, 1.54) 0.88 (0.61, 1.27)
  Higher   1.44 (0.29, 6.49) 0.42 (0.05, 2.13)
Case management (ACT) 1.45 (0.49, 4.21) 0.13 (−1.49, 1.67)
U5 sleep under net (ITNsU5) 1.66 (0.89, 3.08) 0.25 (−0.37, 0.90)
House Spray (IRS) 1.14 (0.17, 7.23) 0.11 (−1.75, 1.70)
Variances
 Gaussian process 0.87 (0.66, 1.15) 0.6 (0.44, 0.80) 0.55(0.39, 073)
 Spatially varying ITNsU5    0.57 (0.38, 0.88)b
 Spatially varying IRS    0.76 (0.42, 1.75)b
 Spatially varying ACT    0.75 (0.42, 1.84)b
 Range (km)a 10.61 (2.39, 20.82) 3.00 (0.40, 10.00) 2.70 (0.44, 9.75)
  1. Model 1 includes only climatic factors
  2. Model 2 includes climatic factors, age, SES, intervention measures
  3. Model 3 has spatially varying covariates for IRS, ACT and ITNsU5
  4. aMinimum distance in kilometer at which the spatial correlation is lower than 5 %
  5. bPosterior median