Table 2 Pertussis confirmation rates by vaccination status in different periods and age groups, Brazil, 2007–2014
From: Increasing incidence of pertussis in Brazil: a retrospective study using surveillance data
Confirmation rates | ||||
|---|---|---|---|---|
Notified cases (N) | Fully vaccinated | Incompletely vaccinated or unvaccinated | p-value | |
Period/Age group | ||||
Jan 2007 – May 2012 | ||||
7–15 months | 1797 | 379/1292 (29,3 %) | 212/505 (42 %) | <0.001 |
16–48 months | 3319 | 809/2964 (27.3 %) | 132/355 (37.2 %) | <0.001 |
Period /Age group | ||||
Jun 2012–Dec 2014 | ||||
7–15 months | 3635 | 719/2722 (26.4 %) | 303/913 (33.2 %) | <0.001 |
16–48 months | 9283 | 2659/8548 (31.1 %) | 261/735 (35.5 %) | 0.013 |