Table 3.
Univariate logistic regression for pathogens with case categories 0, 1, ≥2
| Pathogen | IMD quintile | OR (≥1 cases compared to 0 cases) (95% CI) |
OR (≥2 cases compared to ≤1 cases case) (95% CI) |
OR (Proportional odds assumption met) (95% CI) |
p-value |
|---|---|---|---|---|---|
| Shigella sonnei | 1 (least deprived) | 1.00 | 1.00 | 0.0061 | |
| 2 | 1.09 (0.96–1.24) | 1.50 (1.08–2.09) | |||
| 3 | 0.99 (0.87–1.13) | 1.47 (1.06–2.05) | |||
| 4 | 1.05 (0.93–1.19) | 1.84 (1.34–2.52) | |||
| 5 (most deprived) | 1.06 (0.94–1.21) | 1.85 (1.35–2.54) | |||
| Other Shigella | 1 | 1.00 | 1.00 | 1.00 | <0.001 |
| 2 | 0.89 (0.76–1.05) | ||||
| 3 | 0.97 (0.83–1.14) | ||||
| 4 | 1.18 (1.01–1.38) | 1.68 (1.26–2.24) | |||
| 5 | 1.23 (1.05–1.43) | 1.99 (1.51–2.63) | |||
| Salmonella typhi/paratyphi | 1 | 1.00 | <0.001 | ||
| 2 | 0.89 (0.69–1.14) | ||||
| 3 | 1.47 (1.18–1.83) | ||||
| 4 | 2.21 (1.80–2.71) | ||||
| 5 | 2.49 (2.03–3.05) | ||||
| Shigella flexneri | 1 | 1.00 | <0.001 | ||
| 2 | 1.24 (1.02–1.50) | ||||
| 3 | 1.59 (1.33–1.92) | ||||
| 4 | 2.34 (1.97–2.78) | ||||
| 5 | 2.46 (2.08–2.93) |