Skip to main content

Advertisement

Table 3 Frequency of radiologically confirmed community-acquired pneumonia (CAP) during follow-up.

From: Impact on respiratory tract infections of heptavalent pneumococcal conjugate vaccine administered at 3, 5 and 11 months of age

Episodes PCV-7 group (n = 811) Control group (n = 744) RR 95% CI P
Total number of CAP cases during follow-up 27 72    
Episodes/100 child-years 1.7 4.8 0.35 0.22–0.53 <0.0001
CAP in children aged 6–12 months 9 7    
Episodes/100 child-years 2.2 1.88 1.17 0.44–3.16 0.74
CAP in children aged 13–18 months 3 9    
Episodes/100 child-years 0.7 2.4 0.30 0.08–1.11 0.07
CAP in children aged 19–24 months 7 16    
Episodes/100 child-years 1.72 4.30 0.40 0.16–0.97 0.04
CAP in children aged 25–30 months 8 40    
Episodes/100 child-years 1.97 10.7 0.18 0.09–0.39 <0.0001
  1. RR = relative risk; 95% CI = 95% confidence interval.