Table 5 Estimated numbers of influenza cases and incidence rates, Beijing, China, during 2013–2014 influenza season
Characteristics | Estimated no. influenza cases, median (90% CI) | Estimated rate, %, median (90% CI) |
|---|---|---|
Subtypes | ||
A(H1N1) pdm 09 | 170,010 (127,381–234,895) | 0.9 (0.7–1.2) |
A(H3N2) | 105,483 (77,957–145,661) | 0.6 (0.4–0.8) |
B | 103,180 (76,483–139,276) | 0.5 (0.4–0.7) |
Age groups | ||
18–59 | 324,581(240,140–451,216) | 2.0 (1.5–2.8) |
≥ 60 | 58,594 (39,416–97,984) | 2.2 (1.5–3.6) |
Periods | ||
Epidemic | 350,872 (261,419–485,782) | 1.9 (1.4–2.6) |
Non-epidemic | 28,896 (20,515–40,783) | 0.2 (0.1–0.2) |
Total | 379,767 (281,934–526,565) | 2.0 (1.5–2.8) |