Table 3.
Significant predictors of the prevalence of coccidia in FP-samples (formalin-preserved samples) from wild elephants collected between 2008 and 2012 (n = 397), determined by binary logistic regression. The reference month was March, and the reference year 2009. Storage time was measured in months. Non-significant factors in the analysis were age, group size and group composition. 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 | |||||||
| Sex | 6.957 | 2 | 0.031 | |||||
| Sex (male) | 1.322 | .607 | 4.741 | 1 | 0.029 | 3.75 | 1.14 | 12.4 |
| Month | 35.946 | 11 | <0.001 | |||||
| Month (Jan) | 3.006 | .871 | 11.914 | 1 | 0.001 | 20.2 | 3.67 | 111 |
| Month (Feb) | 4.343 | .934 | 21.621 | 1 | <0.001 | 76.9 | 12.3 | 479 |
| Storage time | −0.135 | .053 | 6.405 | 1 | 0.011 | 0.87 | 0.79 | 0.97 |
| Year | 43.882 | 4 | <0.001 | |||||
| Year (2010) | 1.407 | .399 | 12.458 | 1 | <0.001 | 4.08 | 1.87 | 8.91 |
| Year (2011) | −1.786 | .506 | 12.444 | 1 | <0.001 | 0.17 | 0.62 | 0.45 |
| Year (2012) | −2.525 | .910 | 7.702 | 1 | 0.006 | 0.08 | 0.01 | 0.48 |