Research Article
A Cross-Sectional Seroepidemiological Study on Infectious Bursal Disease in Backyard Chickens in the Mymensingh District of Bangladesh
Table 4
Multivariable logistic regression model between binary response variable results and the selected factors (N = 460).
| Variable | Category | OR | 95% CI | -value |
| Sex | Male | Ref | | | Female | 125.6 | 47.8–329.8 | 0.00 |
| Age | 1–3 weeks | Ref | | | 4–6 weeks | 40.6 | 18.4–89.5 | 0.00 | 7–12 weeks | 10 | 5.0–19.9 | 0.00 |
| Status of health | Healthy | Ref | | | Unhealthy | 4.2 | 1.2–13.9 | 0.01 |
| Breed type | Indigenous | Ref | | | Crossbreed | 6.5 | 1.5–27.5 | 0.01 |
| Housing system | Free-ranging | Ref | | | Separate house | 0.1 | 0.07–0.23 | 0.00 |
| Hygienic condition | Good | Ref | | | Moderate | 3.3 | 1.9–5.7 | 0.00 | Poor | 31.3 | 9.3–105.2 | 0.00 |
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Here, a value ≤0.05 was considered statistically significant, OR = odds ratio, CI = confidence interval. |