Volume 16, Number 9—September 2010
Research
Pediatric Pneumococcal Serotypes in 4 European Countries
Table 3
Serotype-specific adjusted incidence rates of invasive pneumococcal disease in children 5–14 years of age before and after marketing of PCV7, Spain, Belgium, France, and England and Wales*
Country/serotype | Incidence rate† |
Relative risk (95% CI) | p value | |
---|---|---|---|---|
Prevaccine (1999–2002) | Postmarketing (2005–2006) | |||
Spain | ||||
PCV7 types | 1.0 | 0.8 | 0.8 (0.6–1.3) | 0.387 |
Non-PCV7 types | 2.1 | 4.6 | 2.2 (1.8–2.7) | <0.001 |
1 | 1.1 | 3.1 | 2.9 (2.3–3.7) | <0.001 |
7F | 0.1 | 0.2 | 2.0 (0.7–5.6) | 0.175 |
19A |
0.06 |
0.12 |
2.1 (0.5–7.7) |
0.226 |
Belgium | ||||
PCV7 types | 3.0 | 1.2 | 0.4 (0.2–0.7) | <0.001 |
Non-PCV7 types | 3.9 | 6.1 | 1.6 (1.2–2.1) | 0.003 |
1 | 2.2 | 3.8 | 1.8 (1.2–2.6) | 0.003 |
7F | 0.2 | 0.3 | 1.2 (0.2–5.2) | 0.728 |
19A |
0.3 |
0.1 |
0.2 (0.0–1.4) |
0.094 |
France | ||||
PCV7 types | 0.7 | 0.8 | 1.1 (0.7–1.6) | 0.664 |
Non-PCV7 types | 1.3 | 2.0 | 1.5 (1.2–2.0) | 0.001 |
1 | 0.6 | 1.3 | 2.3 (1.6–3.4) | <0.001 |
7F | 0.0 | 0.1 | 3.6 (1.0–20.2) | 0.038 |
19A |
0.1 |
0.0 |
0.3 (0.0–1.6) |
0.116 |
England and Wales | ||||
PCV7 types | 0.7 | 1.0 | 1.4 (1.0–1.9) | 0.026 |
Non-PCV7 types | 0.7 | 2.0 | 2.9 (2.3–3.6) | <0.001 |
1 | 0.3 | 1.3 | 4.2 (3.0–5.9) | <0.001 |
7F | 0.0 | 0.2 | 5.5 (1.9–18.0) | 0.001 |
19A | 0.05 | 0.1 | 2.1 (0.7–5.9) | 0.148 |
*PCV7, heptavalent pneumococcal conjugate vaccine; CI, confidence interval. Marketing indicates that the vaccine was marketed and available for use in the country but not introduced in the vaccine schedule free of charge. Vaccine coverage differed by country during this period, ranging from 33% to 48% in Spain, Belgium, and France but <1% in England and Wales. PCV7 types include serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F.
†Cases per 100,000 children 5–14 years of age. Data for 1999–2002 are annual averages. Prevaccine period is 2001–2002 for France (data not available for previous years).
1Current affiliation: Belgian Healthcare Agency, Brussels, Belgium.