Table 3.
Varicella cases in children <17 years of age in Munich paediatric practices during five consecutive varicella seasons; absolute numbers and mean number per 1000 patient contacts (with 95% confidence interval)
|
Season |
1 |
2 |
3 |
4 |
5 |
1-5 |
|---|---|---|---|---|---|---|
|
Surveillance period |
Oct 06-Sep 07 |
Oct 07-Sep 08 |
Oct 08-Sep 09 |
Oct 09-Sep 10 |
Oct 10-Sep 11 |
Oct 06-Sep 11 |
| (N all monthly reports) | (N = 1015) | (N = 965) | (N = 1013) | (N = 974) | (N = 947) | (N = 4914) |
| Varicella cases - all |
|
|
|
|
|
|
| - n |
6079 |
3518 |
3215 |
1778 |
1464 |
16054 |
| - mean per 1000 patient contacts (95%CI) |
6.58 (6.14-7.03) |
4.20 (3.85-4.55) |
3.95 (3.59-4.30) |
2.26 (2.02-2.51) |
2.16 (1.86-2.47) |
3.86 (3.70-4.02) |
| Varicella cases - vaccinated |
|
|
|
|
|
|
| - n |
218 |
231 |
314 |
179 |
134 |
1076 |
| - mean per 1000 patient contacts (95%CI) |
0.27 (0.22-0.32) |
0.32 (0.24-0.40) |
0.40 (0.34-0.47) |
0.26 (0.21-0.32) |
0.24 (0.17-0.32) |
0.30 (0.27-0.33) |
| - % of all varicella cases |
3.6 |
6.6 |
9.8 |
10.1 |
9.2 |
6.7 |
| Varicella cases - with complications |
|
|
|
|
|
|
| - n |
31 |
20 |
38 |
28 |
17 |
134 |
| - mean per 1000 patient contacts (95%CI) |
0.04 (0.02-0.06) |
0.03 (0.01-0.05) |
0.07 (0.03-0.11) |
0.07 (0.02-0.11) |
0.05 (0.01-0.08) |
0.05 (0.04-0.07) |
| - % of all varicella cases | 0.5 | 0.6 | 1.2 | 1.6 | 1.2 | 0.8 |
Data from BaVariPro Practice Surveillance; Oct 2006-Sep 2011.