Table 7.
Significant predictors of the prevalence of fluke eggs in FP-samples (formalin-preserved faecal samples) from wild elephants collected between 2008 and 2012 (n = 397), using binary logistic regression. The least significant variable, group composition, was removed from the analysis. The other non-significant factors in the analysis were sex, group size, month and season. The reference year was 2009. B and Wald = test statistics, SE = standard error, df = degrees of freedom, OR = Odds Ratio.
| B | SE | Wald | df | p | OR | 95% CI for OR | ||
|---|---|---|---|---|---|---|---|---|
| Lower | Upper | |||||||
| Storage time | −0.171 | .056 | 9.207 | 1 | 0.002 | 0.84 | 0.76 | 0.94 |
| Year | 15.220 | 4 | 0.004 | |||||
| Year (2010) | 1.626 | .494 | 10.839 | 1 | 0.001 | 5.08 | 1.93 | 13.4 |
| Year (2011) | 1.513 | .494 | 9.420 | 1 | 0.002 | 4.54 | 1.72 | 11.9 |
| Age | 0.039 | .016 | 5.785 | 1 | 0.016 | 1.04 | 1.01 | 1.73 |