Table 5.
Comparisons of influenza‐associated death rates (per 100 000 persons) by age and death category in this study with previous studies from China
| Modela | Study period | All ages | Age ≥65 y | Age <65 y | % of deaths in age <65 yb | |
|---|---|---|---|---|---|---|
| All deaths: seasonal | ||||||
| China(Beijing, this study) | NB | 2007‐2013 | 17.2 (7.2‐67.5) | 105 (46.9‐386.1) | 3.5 (0.9‐14.6) | 17.7 |
| China(Northern cities)3 | NB | 2003‐2008 | 18 (10.9‐32.7) | 150.8 (66.2‐502.5) | 1.3 | 6.3 |
| China(Southern cities)3 | NB | 2003‐2008 | 11.3 (1.4‐50.4) | 75.4 (11.0‐313.6) | 1.8 | 13.7 |
| China4 | NB | 2004‐2010 | 15.1 (6.3‐48.9) | 145.5 (95.8‐227.3) | 3.7 (1.2‐14.8) | 22.4 |
| China(Guangzhou city)13 | P | 2004‐2006 | 10.6 (0.6‐17.3) | 111.3 (19.4‐203.2) | ‐ | ‐ |
| China(Guangzhou city)5 | NB | 2010‐2012 | 14.7 (12.1‐17.3) | 185.6 (152.5‐218.7) | 2.5 (2‐3) | 34.8 |
| Hong Kong, China14 | P | 1996‐1999 | 16.4 (9.4‐23.3) | 136.1 (83.7‐188.4) | 11.8 (3.8‐20.1) | 21.2 |
| Hong Kong, China13 | P | 2004‐2006 | 13.4 (5.4‐20.9) | 103.7 (40.2‐117.1) | ‐ | ‐ |
| All deaths: 2009 pandemic | ||||||
| China(Beijing, this study) | NB | 2007‐2013 | 19.9 (10.4‐33.1) | 101.8 (48.4‐175.9) | 7.2 (4.4‐10.9) | 27.0 |
| China4 | NB | 2004‐2010 | 13.8 (6.3‐28.1) | 125.8 (59.3‐250.2) | 3.9 (1.7‐8.6) | 26.3 |
| Hong Kong, China15 | P | 1998‐2009 | 1.8 (0‐3.7) | ‐ | ‐ | 8.7 |
| R&C Deaths: Seasonal | ||||||
| China(Beijing, this study) | NB | 2007‐2013 | 13.5 (5.8‐51.7) | 88.2 (41‐313.2) | 1.8 (0.3‐9) | 11.7 |
| China(Northern cities)3 | NB | 2003‐2008 | 12.4 (7.4‐22.2) | 106 (46.7‐344.1) | 0.6 | 4.3 |
| China(Southern cities)3 | NB | 2003‐2008 | 8.8 (1.8‐35.1) | 64.3 (14.0‐243.7) | 0.6 | 6 |
| China4 | NB | 2004‐2010 | 11.1 (5‐32.2) | 117.8 (54.8‐329.3) | 1.7 (0.6‐6.1) | 14.5 |
| China(Guangzhou city)13 | P | 2004‐2006 | 9.9 (2‐17.6) | 104.1 (27.5‐177.5) | ‐ | ‐ |
| China(Guangzhou city)5 | NB | 2010‐2012 | 11.4 (9.4‐13.4) | 146.9 (120.7‐173) | 1.7 (1.4‐2) | 18 |
| Hong Kong, China14 | P | 1996‐1999 | 12.4 (7.7‐17.1) | 102.4 (61.2‐142.7) | 7.3 (3.1‐11.4) | 17.2 |
| Hong Kong, China13 | P | 2004‐2006 | 9.5 (4.5‐14.6) | 78.7 (40.2‐117.1) | ‐ | ‐ |
| R&C deaths: 2009 pandemic | ||||||
| China(Beijing, this study) | NB | 2007‐2013 | 16 (8.6‐26.2) | 89.3 (45.5‐149.3) | 4.6 (2.8‐7.1) | 20.6 |
| China4 | NB | 2004‐2010 | 9.4 (4.6‐18.6) | 94.6 (44.5‐187.1) | 2 (1‐3.8) | 19 |
| Hong Kong, China15 | P | 1998‐2009 | 1.6 (0.4‐2.9) | ‐ | ‐ | 15.7 |
rate (95% confidence interval) presented.
a
NB denotes negative binomial model; P denotes Poisson model.
b
% of deaths in persons aged<65 years was a calculation of estimated numbers of influenza.