Table 3.
Individual-level landscape-scale analysis. (Multivariable mixed effects logistic regression model predicting T. gondii prevalence among live captured sea otters (1998–2013) from all study regions (including Alaska, British Columbia, Washington and California). A random effect is included to account for dependence of outcomes within study regions (n = 13). OR, odds ratio; 95% CI, 95% confidence interval.)
| variable | level | OR | 95% CI | p-value |
|---|---|---|---|---|
| sex | female | 1.00 | — | REF |
| male | 1.96 | (1.28–2.97) | 0.002 | |
| age | juvenile | 1.00 | — | REF |
| subadult | 7.83 | (0.91–67.55) | 0.061 | |
| adult | 29.60 | (3.94–222.21) | 0.001 | |
| housing unit density | twofold increase | 1.26 | (1.15–1.37) | 0.000 |