Table 3.
Summary of seroprevalence results by koala age group and logistic regression outputs for the analysis of the association of koala age with RRV seroprevalence in koalas residing in coastal lacustrine and estuarine environments.
| Variable | Seropositive (%) | Seronegative (%) | Seroconverted (%) | Odds ratio (OR) | OR 95% CI | P-value |
|---|---|---|---|---|---|---|
| Age | ||||||
| < 2 | 31 (56.4%) | 22 (38.6%) | 2 (3.5%) | Baseline | – | – |
| 2–4 | 48 (85.7%) | 5 (8.5%) | 3 (5.1%) | 6.9 | 2.5–22.2 | < 0.001 |
| 4–6 | 33 (82.5%) | 3 (6.8%) | 4 (9.1%) | 8.2 | 2.6–37.2 | 0.001 |
| > 6 | 33 (91.7%) | 1 (2.6%) | 2 (5.3%) | 23.7 | 4.5–439.9 | 0.003 |
Percentages are calculated for the number of individuals in each row. The data shown is only for animals for which their location could be confirmed (n = 187) after accounting for relocated individuals and animals with too few position locations (n < 5) to confirm their assignment to a particular environment.