Table 1.
Numbers of serious influenza A(H7N9) cases reported between 31 March and 21 April 2013 in 6 provinces of mainland China, and corresponding population denominators.
| Province-type | Age group, years | ||||||
|---|---|---|---|---|---|---|---|
| 0-14 | 15-24 | 25-34 | 35-44 | 45-54 | 55-64 | 65+ | |
|
|
|||||||
| Number of serious H7N9 cases | |||||||
| Anhui-urban | 0 | 0 | 0 | 1 | 0 | 2 | 0 |
| Beijing-urban | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Henan-rural | 0 | 0 | 1 | 1 | 0 | 0 | 1 |
| Jiangsu-urban | 0 | 1 | 3 | 1 | 3 | 4 | 6 |
| Jiangsu-rural | 0 | 0 | 1 | 0 | 1 | 0 | 2 |
| Shanghai-urban | 2 | 0 | 1 | 1 | 5 | 5 | 19 |
| Zhejiang-urban | 0 | 0 | 0 | 5 | 2 | 6 | 11 |
| Zhejiang-rural | 0 | 0 | 0 | 1 | 1 | 3 | 7 |
|
| |||||||
| Population size * | |||||||
|
| |||||||
| Anhui-urban | 1617392 | 2299994 | 1965849 | 2512466 | 1671583 | 1135834 | 979469 |
| Beijing-urban | 1311411 | 2968261 | 3513686 | 2657513 | 2278771 | 1485603 | 1347970 |
| Henan-rural | 13341020 | 9674352 | 6711837 | 9040458 | 7264034 | 6516703 | 5261768 |
| Jiangsu-urban | 3390036 | 6004427 | 5389879 | 5658879 | 4150560 | 3042830 | 2529855 |
| Jiangsu-rural | 4421789 | 4517515 | 3459924 | 5406568 | 4789994 | 4443849 | 4249814 |
| Shanghai-urban | 1483687 | 2821598 | 3660496 | 2797231 | 2809896 | 2267794 | 1800140 |
| Zhejiang-urban | 2449320 | 4004494 | 4044383 | 4062503 | 2768791 | 1707271 | 1349532 |
| Zhejiang-rural | 2888769 | 2448074 | 2676907 | 3835297 | 3477935 | 2840965 | 2708735 |
*
Population sizes obtained from the 2010 population census of the People’s Republic of China, published on the official website of National Bureau of Statistics of China.