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Table 3 Comparison of S. pneumoniae frequency and density among different age groups

From: Diversity of upper respiratory tract infections and prevalence of Streptococcus pneumoniae colonization among patients with fever and flu-like symptoms

Age(years) S. pneumoniae Frequency(%) S. pneumoniae Density (log10 cfu/ml)
0–5 19 (21.6)*** 3.7 ± 0.6
5–18 4 (4.2) 4.6 ± 0.9
18–45 33 (5.9) 3.7 ± 0.7
45–65 24 (7.3) 3.5 ± 0.7
> 65 18 (12.5) 4.7 ± 1.0***
Total 98 (8.0) 3.9 ± 0.9
  1. *Significant difference between a specefec age group vs. all other age groups was identified using Pearson’s X2 test for S. pneumoniae frequency density
  2. *p < 0.05; **p < 0.01; ***p < 0.001
  3. The age group of 5–18 is excluded for the analysis due to very low number of cases