Table 2.
ACSCs | 1998/99 | 1999/2000 | 2000/01 | 2001/02 | 2002/03 | 2003/04 | Total N | ||||||
N | SR (95% CI) | N | SR (95% CI) | N | SR (95% CI) | N | SR (95% CI) | N | SR (95% CI) | N | SR (95% CI) | ||
Total | 254 | 18.7 (16.1,21.7) | 298 | 21.4 (18.6, 24.5) | 518 | 29.8 (27.0,32.8) | 572 | 32.4 (29.5,35.6) | 569 | 31.9 (29.0,35.0) | 680 | 35.5 (32.5, 38.7) | 2891 |
Acute | 112 | 6.4 (5.1, 8.1) | 145 | 7.8 (6.4, 9.6) | 199 | 8.1 (6.9, 9.5) | 259 | 11.7 (10.1,13.4) | 249 | 10.5 (9.0, 12.1) | 322 | 13.0 (11.4, 14.8) | 1286 |
Chronic | 124 | 11.4 (9.3, 14.0) | 138 | 12.5 (10.3,15.2) | 307 | 21.2 (18.8,23.9) | 296 | 20.1 (17.7,22.7) | 311 | 21.1 (18.7,23.8) | 343 | 22.2 (19.7, 25.0) | 1519 |
Vaccine-preventable | 18 | 0.8 (0.5, 1.6) | 17 | 1.2 (0.7, 2.2) | 15 | 0.7 (0.4, 1.4) | 24 | 1.1 (0.6, 1.7) | 18 | 0.9 (0.5, 1.5) | 25 | 1.0 (0.6, 1.6) | 117 |