Age-Adjusted Shigellosis Incidence and Incidence Rate Ratios by Census Tract Poverty Level, FoodNet, 2004–2014
| . | Age-Adjusted Incidence per 100 000 Population by Poverty Levela . | . | . | |||
|---|---|---|---|---|---|---|
| Characteristic | <5% | 5%–<10% | 10%–<20% | ≥20% | IRR (≥20% vs <5%) | 95% CI |
| All cases | 2.1 | 3.3 | 4.6 | 7.1 | 3.5 | 3.3–3.6 |
| Sex | ||||||
| Male | 2.0 | 3.5 | 4.6 | 7.0 | 3.5 | 3.2–3.7 |
| Female | 2.1 | 3.1 | 4.6 | 7.2 | 3.4 | 3.2–3.7 |
| Age group, y | ||||||
| 0–4 | 7.1 | 11.6 | 19.0 | 34.3 | 4.8 | 4.4–5.3 |
| 5–17 | 3.1 | 5.6 | 8.7 | 14.0 | 4.5 | 4.2–4.9 |
| 18–49 | 1.6 | 2.4 | 2.8 | 3.5 | 2.2 | 2.1–2.4 |
| ≥50 | 0.9 | 1.1 | 1.2 | 1.5 | 1.8 | 1.6–2.1 |
| Race/ethnicity | ||||||
| White, non-Hispanic | 1.5 | 2.5 | 3.6 | 5.2 | 3.5 | 3.2–3.7 |
| Black, non-Hispanic | 3.1 | 4.3 | 6.1 | 9.1 | 2.9 | 2.6–3.3 |
| Hispanic | 2.7 | 3.9 | 4.2 | 5.7 | 2.1 | 1.8–2.4 |
| Asian, non-Hispanic | 0.9 | 1.0 | 1.1 | 2.1 | 2.4 | 1.7–3.4 |
| Other | 1.3 | 2.1 | 2.5 | 3.3 | 2.7 | 1.9–3.8 |
| Shigella species | ||||||
| S. sonnei | 1.6 | 2.6 | 3.7 | 5.7 | 3.6 | 3.4–3.8 |
| S. flexneri | 0.3 | 0.5 | 0.6 | 0.9 | 2.5 | 2.2–2.8 |
| . | Age-Adjusted Incidence per 100 000 Population by Poverty Levela . | . | . | |||
|---|---|---|---|---|---|---|
| Characteristic | <5% | 5%–<10% | 10%–<20% | ≥20% | IRR (≥20% vs <5%) | 95% CI |
| All cases | 2.1 | 3.3 | 4.6 | 7.1 | 3.5 | 3.3–3.6 |
| Sex | ||||||
| Male | 2.0 | 3.5 | 4.6 | 7.0 | 3.5 | 3.2–3.7 |
| Female | 2.1 | 3.1 | 4.6 | 7.2 | 3.4 | 3.2–3.7 |
| Age group, y | ||||||
| 0–4 | 7.1 | 11.6 | 19.0 | 34.3 | 4.8 | 4.4–5.3 |
| 5–17 | 3.1 | 5.6 | 8.7 | 14.0 | 4.5 | 4.2–4.9 |
| 18–49 | 1.6 | 2.4 | 2.8 | 3.5 | 2.2 | 2.1–2.4 |
| ≥50 | 0.9 | 1.1 | 1.2 | 1.5 | 1.8 | 1.6–2.1 |
| Race/ethnicity | ||||||
| White, non-Hispanic | 1.5 | 2.5 | 3.6 | 5.2 | 3.5 | 3.2–3.7 |
| Black, non-Hispanic | 3.1 | 4.3 | 6.1 | 9.1 | 2.9 | 2.6–3.3 |
| Hispanic | 2.7 | 3.9 | 4.2 | 5.7 | 2.1 | 1.8–2.4 |
| Asian, non-Hispanic | 0.9 | 1.0 | 1.1 | 2.1 | 2.4 | 1.7–3.4 |
| Other | 1.3 | 2.1 | 2.5 | 3.3 | 2.7 | 1.9–3.8 |
| Shigella species | ||||||
| S. sonnei | 1.6 | 2.6 | 3.7 | 5.7 | 3.6 | 3.4–3.8 |
| S. flexneri | 0.3 | 0.5 | 0.6 | 0.9 | 2.5 | 2.2–2.8 |
Abbreviations: CI, confidence interval; IRR, incidence rate ratio.
aDefined as the percentage of households in the Census tract living below the federal poverty line.
Age-Adjusted Shigellosis Incidence and Incidence Rate Ratios by Census Tract Poverty Level, FoodNet, 2004–2014
| . | Age-Adjusted Incidence per 100 000 Population by Poverty Levela . | . | . | |||
|---|---|---|---|---|---|---|
| Characteristic | <5% | 5%–<10% | 10%–<20% | ≥20% | IRR (≥20% vs <5%) | 95% CI |
| All cases | 2.1 | 3.3 | 4.6 | 7.1 | 3.5 | 3.3–3.6 |
| Sex | ||||||
| Male | 2.0 | 3.5 | 4.6 | 7.0 | 3.5 | 3.2–3.7 |
| Female | 2.1 | 3.1 | 4.6 | 7.2 | 3.4 | 3.2–3.7 |
| Age group, y | ||||||
| 0–4 | 7.1 | 11.6 | 19.0 | 34.3 | 4.8 | 4.4–5.3 |
| 5–17 | 3.1 | 5.6 | 8.7 | 14.0 | 4.5 | 4.2–4.9 |
| 18–49 | 1.6 | 2.4 | 2.8 | 3.5 | 2.2 | 2.1–2.4 |
| ≥50 | 0.9 | 1.1 | 1.2 | 1.5 | 1.8 | 1.6–2.1 |
| Race/ethnicity | ||||||
| White, non-Hispanic | 1.5 | 2.5 | 3.6 | 5.2 | 3.5 | 3.2–3.7 |
| Black, non-Hispanic | 3.1 | 4.3 | 6.1 | 9.1 | 2.9 | 2.6–3.3 |
| Hispanic | 2.7 | 3.9 | 4.2 | 5.7 | 2.1 | 1.8–2.4 |
| Asian, non-Hispanic | 0.9 | 1.0 | 1.1 | 2.1 | 2.4 | 1.7–3.4 |
| Other | 1.3 | 2.1 | 2.5 | 3.3 | 2.7 | 1.9–3.8 |
| Shigella species | ||||||
| S. sonnei | 1.6 | 2.6 | 3.7 | 5.7 | 3.6 | 3.4–3.8 |
| S. flexneri | 0.3 | 0.5 | 0.6 | 0.9 | 2.5 | 2.2–2.8 |
| . | Age-Adjusted Incidence per 100 000 Population by Poverty Levela . | . | . | |||
|---|---|---|---|---|---|---|
| Characteristic | <5% | 5%–<10% | 10%–<20% | ≥20% | IRR (≥20% vs <5%) | 95% CI |
| All cases | 2.1 | 3.3 | 4.6 | 7.1 | 3.5 | 3.3–3.6 |
| Sex | ||||||
| Male | 2.0 | 3.5 | 4.6 | 7.0 | 3.5 | 3.2–3.7 |
| Female | 2.1 | 3.1 | 4.6 | 7.2 | 3.4 | 3.2–3.7 |
| Age group, y | ||||||
| 0–4 | 7.1 | 11.6 | 19.0 | 34.3 | 4.8 | 4.4–5.3 |
| 5–17 | 3.1 | 5.6 | 8.7 | 14.0 | 4.5 | 4.2–4.9 |
| 18–49 | 1.6 | 2.4 | 2.8 | 3.5 | 2.2 | 2.1–2.4 |
| ≥50 | 0.9 | 1.1 | 1.2 | 1.5 | 1.8 | 1.6–2.1 |
| Race/ethnicity | ||||||
| White, non-Hispanic | 1.5 | 2.5 | 3.6 | 5.2 | 3.5 | 3.2–3.7 |
| Black, non-Hispanic | 3.1 | 4.3 | 6.1 | 9.1 | 2.9 | 2.6–3.3 |
| Hispanic | 2.7 | 3.9 | 4.2 | 5.7 | 2.1 | 1.8–2.4 |
| Asian, non-Hispanic | 0.9 | 1.0 | 1.1 | 2.1 | 2.4 | 1.7–3.4 |
| Other | 1.3 | 2.1 | 2.5 | 3.3 | 2.7 | 1.9–3.8 |
| Shigella species | ||||||
| S. sonnei | 1.6 | 2.6 | 3.7 | 5.7 | 3.6 | 3.4–3.8 |
| S. flexneri | 0.3 | 0.5 | 0.6 | 0.9 | 2.5 | 2.2–2.8 |
Abbreviations: CI, confidence interval; IRR, incidence rate ratio.
aDefined as the percentage of households in the Census tract living below the federal poverty line.
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