Table 3.
Poisson regression model estimates of influenza-associated mortality rates per 100 000 persons based on all medical cause data (1990–2008); mean mortality rates with 95% confidence intervals
| Mortality rates per 100 000 person years (95% confidence intervals) | ||||||
|---|---|---|---|---|---|---|
| Under 65 | 65 and over | All ages | ||||
| Year | Rate | 95% CI | Rate | 95% CI | Rate | 95% CI |
| 1990 | 1·2 | (0·8, 1·6) | 57·2 | (50·0, 65·4) | 7·6 | (6·7, 8·6) |
| 1991 | 0·4 | (0·2, 0·7) | 5·4 | (3·5, 8·4) | 0·9 | (0·7, 1·3) |
| 1992 | 1·0 | (0·7, 1·4) | 47·2 | (40·9, 54·6) | 6·4 | (5·6, 7·3) |
| 1993 | 1·2 | (0·9, 1·7) | 50·0 | (43·5, 57·5) | 6·9 | (6·1, 7·8) |
| 1994 | 1·4 | (1·1, 1·9) | 78·4 | (70·2, 87·5) | 10·4 | (9·4, 11·6) |
| 1995 | 1·3 | (1·0, 1·8) | 35·2 | (30, 41·4) | 5·3 | (4·6, 6·1) |
| 1996 | 2·3 | (1·9, 2·9) | 132·8 | (122·3, 144·3) | 17·7 | (16·4, 19·2) |
| 1997 | 1·8 | (1·4, 2·4) | 68·8 | (61·4, 77·2) | 9·8 | (8·8, 10·8) |
| 1998 | 1·4 | (1·0, 1·9) | 79·7 | (71·7, 88·6) | 10·7 | (9·7, 11·8) |
| 1999 | 2·1 | (1·7, 2·7) | 109·3 | (100, 119·6) | 15·0 | (13·8, 16·3) |
| 2000 | 0·6 | (0·4, 1·0) | 29·5 | (24·8, 35·0) | 4·1 | (3·5, 4·8) |
| 2001 | 1·6 | (1·2, 2·1) | 68·9 | (61·6, 77·0) | 9·7 | (8·8, 10·8) |
| 2002 | 1·7 | (1·3, 2·2) | 84·8 | (76·8, 93·7) | 11·8 | (10·8, 13) |
| 2003 | 2·8 | (2·3, 3·5) | 171·0 | (159·6, 183·3) | 23·3 | (21·8, 24·9) |
| 2004 | 2·3 | (1·9, 2·9) | 131·0 | (121·1, 141·7) | 18·1 | (16·8, 19·5) |
| 2005 | 1·6 | (1·2, 2·0) | 30·0 | (25·5, 35·3) | 5·1 | (4·4, 5·8) |
| 2006 | 1·9 | (1·5, 2·4) | 115·3 | (106·3, 125·2) | 15·9 | (14·7, 17·2) |
| 2007 | 1·7 | (1·3, 2·2) | 89·8 | (81·9, 98·5) | 12·6 | (11·6, 13·8) |
| 2008 | 2·1 | (1·6, 2·6) | 71·3 | (64·4, 79·0) | 10·7 | (9·8, 11·8) |
| Mean (1990–2008) | 1·6 | (1·3, 1·9) | 76·6 | (56·6, 96·7) | 10·6 | (7·9, 13·3) |