Skip to main content

Advertisement

Table 7 Predictors for the presence of multiple infections across all extension study sentinel sites in Burundi combined with the data obtained by a mapping survey in 2014 from 14 of the 19 extension schools. Only data from infected pupils (n = 5,027 observations) was included. Results are from a binomial mixed model. Age and the egg counts for Ascaris lumbricoides, hookworm, and Trichuris trichiura in epg had been mean-centred and divided by the estimates of their standard deviations. The pseudo-R 2 values for this model were pseudo R 2 MF = 0.186; R 2 marg. = 0.300; R 2 cond. = 0.402

From: The impact of an 8-year mass drug administration programme on prevalence, intensity and co-infections of soil-transmitted helminthiases in Burundi

Fixed effects Category Parameter Adjusted odds ratio (CI) P
(Intercept) -2.06 (0.2) 0.13 (0.09–0.19) < 0.001
Year 2009 -0.8 (0.11) 0.45 (0.36–0.56) < 0.001
  2011 -0.53 (0.11) 0.59 (0.47–0.73) < 0.001
  2014 -1.27 (0.4) 0.28 (0.13–0.62) 0.002
Age   -0.01 (0.046) 0.99 (0.9–1.08) 0.788
Sex (male)   0.11 (0.089) 1.12 (0.94–1.33) 0.198
Ascaris (epg) 0.22 (0.055) 1.24 (1.12–1.39) < 0.001
Hookworm (epg) 0.41 (0.075) 1.5 (1.3–1.74) < 0.001
Trichuris (epg) 1.14 (0.084) 3.12 (2.65–3.68) < 0.001
Random effects   Variance SD P
Pupil (Intercept) 0 0 1
School (Intercept) 0.56 0.75