Number* (95% CI) | Rate per 100 000 persons (95% CI) | Trend p value† | |
1998 | 3521 (2340 to 4701) | 8.88 (5.90 to 11.86) | <0.0001 |
1999 | 3374 (2454 to 4294) | 8.49 (6.18 to 10.80) | |
2000 | 3239 (2291 to 4186) | 8.16 (5.78 to 10.55) | |
2001 | 3832 (2842 to 4822) | 9.68 (7.18 to 12.18) | |
2002 | 4203 (3008 to 5398) | 10.64 (7.61 to 13.66) | |
2003 | 4306 (3245 to 5367) | 10.89 (8.21 to 13.58) | |
2004 | 4775 (3550 to 6001) | 12.04 (8.95 to 15.13) | |
2005 | 4245 (3141 to 5348) | 10.66 (7.89 to 13.43) | |
2006 | 5298 (4159 to 6437) | 13.20 (10.37 to 16.04) | |
2007 | 5335 (3953 to 6716) | 13.15 (9.74 to 16.55) |
*Based on weighted data.
†Estimated from Poisson regression.