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Table 1 Characteristics of the two groups of participants

From: Nasopharyngeal carriage of individual Streptococcus pneumoniae serotypes during pediatric radiologically confirmed community acquired pneumonia following PCV7 introduction in Switzerland

Variables CAP (n=236) Healthy (n=105) p-value Adjusted p-values*
  Mean (95% CI)   
Age in years 4.7 (0.7-14) 6 (1.2-15.1) <0.001 -
Range (min-max) 0.24-15.3 0.20-16.3   
CRP level mg/L 102 (9.6-315.2) NA - -
WBC count, cells *10 9 /L 15.4 (4.5-35.6) NA - -
PCT 7.8 (0.06-57.8) NA - -
  n (%)   
Male 116/229 (51) 71/105 (68) 0.004 -
Fully vaccinated with PCV-7 57/216 (26) 13/97 (13) 0.004 -
Day care/school attendance 167/226 (74) 82/102 (80) 0.20 0.94
Number of siblings >1 152/223 (68) 76/103 (74) 0.30 0.56
Positive tobacco exposure 64/219 (29) 39/100 (39) 0.08 0.13
Nasopharyngeal SP _ PCR positive 127 (54) 34 (32) <0.0001 0.003
  1. CAP indicates Community-acquired pneumonia; SP, Streptococcus pneumoniae; n, number; CRP, C reactive protein; WBC, white blood cell; PCT, Procalcitonin; NA, not applicable.
  2. * Chi-Square test adjusted by age, gender and PCV7 vaccination status (fully, partially or not).