Table 6.
Univariable results showing the factors affecting post-treatment PCR after the initial treatment course using binomial logistic regression.
| Variable | Category | Post-treatment PCR | Odds ratio (95% CI) | p value | |
|---|---|---|---|---|---|
| Positive (%) | Negative (%) | ||||
| Sex | Male 1 | 10 (9.9) | 41 (40.6) | 1.0 | 0.84 |
| Female | 9 (8.9) | 41 (40.6) | 1.11 (0.41, 3.02) | ||
| Total | 19 (18.8) | 82 (81.2) | |||
| Maturity | Juvenile1 | 3 (3.0) | 9 (8.9) | 1.0 | 0.57 |
| Adult | 16 (15.8) | 73 (72.3) | 1.52 (0.37, 6.26) | ||
| Total | 19 (18.8) | 82 (81.2) | |||
| Location | NSW1 | 15 (14.6) | 51 (49.5) | 1.0 | 0.22 |
| QLD | 4 (3.9) | 16 (15.5) | 1.18 (0.34, 4.06) | ||
| Other | 1 (1.0) | 16 (15.5) | 4.71 (0.58, 38.46) | ||
| Total | 20 (19.4) | 83 (80.6) | |||
| Clinical signs | No clinical signs 1 | 2 (1.9) | 25 (24.3) | 1.0 | 0.14 |
| Ocular signs only | 7 (6.8) | 31 (30.1) | 0.35 (0.07, 1.86) | ||
| UGT signs only | 7 (6.8) | 20 (19.4) | 0.23 (0.04, 1.22) | ||
| Ocular and UGT signs | 4 (3.9) | 7 (6.8) | 0.14 (0.02, 0.93) | ||
| Total | 20 (19.4) | 83 (80.6) | |||
| Treatment | Chloramphenicol1 | 13 (14.0) | 31 (33.3) | 1.0 | 0.008 |
| Doxycycline | 3 (3.2) | 39 (41.9) | 5.45 (1.43, 20.84) | ||
| Mixed/other | 3 (3.2) | 4 (4.3) | 0.56 (0.11, 2.86) | ||
| Total | 19 (20.4) | 74 (79.6) | |||
1 = reference category; CI = confidence interval.
Significant value is in [bold].