Table 3.
Variables | Positive (%) | 95% CI (%) | Negative (%) | 95% CI (%) |
---|---|---|---|---|
Total sample (n = 278) | 94 (33.8) | 28.5–39.6 | 184 (66.2) | 60.4–71.5 |
Vaccination history | ||||
Yes (n = 88; 31.7%) | 34 (38.6) | 29.1–49.1 | 54 (61.4) | 50.9–70.9 |
No (n = 190; 68.3%) | 60 (31.6) | 25.4–38.5 | 130 (68.4) | 61.5–74.6 |
Potentially risky dogs (60 + 54)/278 | 114 (41.0) | 35.4–46.9 |
Risky groups are defined as vaccinated dogs without active immunity and non-vaccinated dog with positive serology. Confidence intervals of 95% were calculated using a modified binomial Wald method [20].