Table 1.
Incidence of IS among children < 1 and < 2 years of age (N=167)
|
Year |
Incidence per 100,000 child-year |
|||||
|---|---|---|---|---|---|---|
|
Children< 1 year |
95% CI |
Children < 2 years |
95% CI |
|||
| LL | UL | LL | UL | |||
| 2002* |
44.5 |
19.3 |
69.7 |
31.5 |
16.6 |
46.5 |
| 2003 |
32.1 |
13.9 |
50.3 |
29.4 |
17.1 |
41.7 |
| 2004 |
35.0 |
16.0 |
54.0 |
43.0 |
28.1 |
57.9 |
| 2005 |
37.4 |
17.8 |
57.1 |
25.4 |
14.0 |
36.8 |
| 2006 |
28.8 |
11.8 |
45.8 |
24.9 |
13.7 |
36.1 |
| 2007 |
33.0 |
15.1 |
51.0 |
25.4 |
14.3 |
36.5 |
| 2008 |
27.6 |
11.3 |
43.9 |
31.4 |
19.1 |
43.7 |
| 2009 |
7.6 |
0.0 |
16.2 |
10.1 |
3.1 |
17.2 |
| 2010** | 15.3 | 0.3 | 30.3 | 11.5 | 2.3 | 20.7 |
95% CI: exact 95% confidence interval; LL: lower limit; UL: upper limit.
Children < 2 years include children < 1 year and children aged 1–2 years.
*Data collected from May to December - 2002.
**Data collected from January to June - 2010.