Table 1.
Parent survey on children 18-36 months of age |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
p-value* |
---|---|---|---|---|---|---|---|
(N questionnaires) | (N = 372) | (N = 364) | (N = 352) | (N = 330) | (N = 301) | (N = 302) | |
History of any previous varicella disease; n (%) |
47 (12.6) |
66 (18.1) |
39 (11.1) |
26 (7.9) |
23 (7.6) |
15 (5.0) |
<0.001 |
Vaccinated against varicella at time of survey |
|
|
|
|
|
|
|
- received at least one dose; n (%) |
140 (37.6) |
187 (51.4) |
188 (53.4) |
174 (52.7) |
200 (66.4) |
206 (68.2) |
<0.001 |
- received two doses; n (%) | N.A. | 37 (10.2) | 66 (18.8) | 97 (29.4) | 158 (52.5) | 177 (58.6) | <0.001 |
Data from BaVariPro Parent Surveys; 2006 to 2011.
*Mantel-Haenszel’s Chi2-Test for linear trend.