Table 3. Annual Estimated Incidence and Case-Fatality Ratios Associated With Invasive Non-b Haemophilus influenzae Disease, by Age Group and Serotype—United States, 2009–2015.
| Serotype a | Serotype d | Serotype e | Serotype f | |||||
|---|---|---|---|---|---|---|---|---|
| Age, y | Incidencea (95% CI) | CFR, % | Incidencea (95% CI) | CFR, % | Incidencea (95% CI) | CFR, % | Incidencea (95% CI) | CFR, % |
| <1 | 1.52 (1.16–1.99) | 5.7 | 0.00 (.00–.11) | N/A | 0.17 (.07–.37) | 0 | 0.83 (.57–1.19) | 0 |
| 1–4 | 0.40 (.31–.51) | 0 | 0.00 (.00–.03) | N/A | 0.03 (.01–.07) | 0 | 0.28 (.20–.37) | 5.1 |
| 5–17 | 0.02 (.01–.04) | 0 | 0.00 (.00–.01) | N/A | 0.01 (.00–.02) | 0 | 0.06 (.05–.09) | 6.7 |
| 18–34 | 0.02 (.01–.03) | 8.3 | 0.00 (.00–.01) | N/A | 0.01 (.01–.03) | 44.4 | 0.05 (.03–.06) | 3.4 |
| 35–49 | 0.05 (.03–.07) | 16.7 | 0.00 (.00–.01) | 0 | 0.03 (.01–.04) | 7.1 | 0.16 (.12–.19) | 8.6 |
| 50–64 | 0.09 (.07–.12) | 10.4 | 0.00 (.00–.01) | 100.0 | 0.13 (.10–.16) | 20.0 | 0.45 (.39–.50) | 10.6 |
| >65 | 0.15 (.11–.19) | 16.0 | 0.01 (.00–.03) | 50.0 | 0.28 (.23–.34) | 19.1 | 0.83 (.73–.91) | 10.9 |
| Total | 0.10 (.08–.11) | 8.3 | 0.00 (.00–.00) | 50.0 | 0.08 (.07–.09) | 18.4 | 0.27 (.26–.29) | 9.3 |
No serotype c cases were reported in 2009–2015.
Abbreviations: CFR, case-fatality ratio; CI, confidence interval; N/A, not applicable.
a
Cases per 100 000 persons per year.