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Table 6 Predictors for the presence of multiple infections across all 19 extension study sentinel sites in Burundi combined with the data obtained by a mapping survey in 2014 from 14 of the 19 extension schools. All pupils (infected and uninfected, n = 20,871 observations) were included in the data. Results are from a binomial mixed model, age had been mean-centred and divided by the estimate of its standard deviation (SD). The pseudo-R 2 values for this model were pseudo-R 2 MF = 0.196; R 2 marg = 0.079; R 2 cond. = 0.479
| Fixed effects | Category | Parameter | Adjusted odds ratio (CI) | P |
|---|---|---|---|---|
| (Intercept) | -3.61 (0.35) | 0.03 (0.01–0.05) | < 0.001 | |
| Year | 2009 | -0.57 (0.21) | 0.57 (0.37–0.86) | 0.008 |
| 2011 | -1.59 (0.21) | 0.2 (0.13–0.31) | < 0.001 | |
| 2014 | -1.88 (0.72) | 0.15 (0.04–0.62) | 0.009 | |
| Sex (male) | 0.17 (0.078) | 1.18 (1.01–1.37) | 0.033 | |
| Age | -0.03 (0.044) | 0.97 (0.89–1.06) | 0.529 | |
| Age^2 | -0.09 (0.039) | 0.91 (0.84–0.98) | 0.016 | |
| Random effects | Variance | SD | P | |
| Pupil (Intercept) | 0.55 | 0.74 | < 0.001 | |
| School (Intercept) | 2.00 | 1.40 | ||
| Year 2009 | 0.50 | 0.71 | ||
| Year 2011 | 0.30 | 0.55 | ||
| Year 2014 | 2.00 | 1.40 | ||
| Random slope year | < 0.001 | |||
