Table 4. Annual incidence of pneumonia hospitalizations with severe pneumonia in children aged 2–23 months in four countries.
| Incidence | Incidence per 100 000 infantsa (95% CI) |
|||
|---|---|---|---|---|
| Fiji | Gambia | Mongolia | Viet Nam, Ho Chi Minh City | |
| All-cause pneumonia | ||||
| Annual incidence according to the 2005 WHO definition4 | 1671.4 (1595.1 to 1750.5) | 5305.4 (4928.3 to 5703.8) | 4661.2 (4649.7 to 672.3) | 5034.4 (4358.7 to 5780.9) |
| Annual incidence according to the 2013 WHO definition7 | 1370.4 (1301.3 to 1442.2) | 2062.8 (1830.3 to 2316.8) | 2836.2 (2824.7 to 2847.3) | 4319.0 (3692.8 to 5017.1) |
| Difference | −301.0 (−405.2 to −196.8) | −3242.6 (−3695.2 to −2789.9) | −1825.0 (−2064.7 to −1585.3) | −715.4 (−718.5 to −712.3) |
| With primary end-point consolidationb | ||||
| Annual incidence according to the 2005 WHO definition4 | 160.7 (137.7 to 186.5) | 1056.8 (892.3 to 1 242.7) | 534.5 (515.1 to 552.9) | 556.4 (344.8 to 849.3) |
| Annual incidence according to the 2013 WHO definition7 | 138.4 (117.1 to 162.5) | 434.3 (331.4 to 559.0) | 333.1 (314.1 to 351.9) | 529.9 (324.0 to 817.3) |
| Difference | −22.3 (−55.0 to 10.4) | −622.5 (−826.1 to −418.8) | −201.4 (−283.0 to −119.9) | 26.5 (25.4 to 27.5) |
CI: confidence interval; NA: not available; WHO: World Health Organization.
a Aged 2–23 months.
b Chest radiographs interpreted by independent radiologists, classifying primary end-point consolidation as per WHO definition.14
Note: The table only presents data for sites with available population data and a defined catchment.