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Table 1 Prevalence of URTI pathogens 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) Case Positive(%) FluA(%) FluB(%) RSV(%) hRV(%) PIV(%) ADV(%) hMPV(%) M.p(%) C.P(%) B.p(%)
0–5 88 31 (35.2) 6 (6.8)* 1 (1.1) 6 (6.8) 10 (11.4)*** 3 (3.4)*** 4 (4.5)*** 1 (1.1) 3 (3.4) 0 (0.0) 0 (0.0)
5–18 95 30 (31.6) 16 (16.8) 3 (3.2) 1 (1.1) 2 (2.2) 2 (2.2) 1 (1.1) 1 (1.1) 7 (7.4) 1 (1.0) 0 (0.0)
18–45 563 162 (28.8) 82 (14.6) 25 (4.4) 12 (2.13)* 15 (2.7) 2 (0.4) 9 (1.6) 2 (0.4) 35 (6.2) 0 (0.0) 2 (0.4)
45–65 331 108 (32.6) 67 (20.3)*** 7 (2.1) 17 (5.1) 11 (3.3) 0 (0.0) 1 (0.3) 3 (0.9) 14 (4.2) 0 (0.0) 0 (0.0)
> 65 144 41 (28.5) 21 (14.6) 3 (2.1) 8 (5.6) 3 (2.9) 3 (2.9) 0 (0.0) 4 (2.8) 6 (4.2) 0 (0.0) 0 (0.0)
Total 1221 372 (30.5) 192 (15.7) 39 (3.2) 44 (3.6) 41 (3.4) 10 (0.8) 15 (1.2) 11 (0.9) 65 (5.3) 1 (0.1) 2 (0.2)
p(Pearson’s X2   p = 0.599 p = 0.025* p = 0.210 p = 0.02* p = 0.001** p = 0.003** p = 0.012* p = 0.106 p = 0.480   
  1. Significant difference between a specific age group vs. all other age groups was identified using Pearson’s X2 TEST. *p < 0.05; **p < 0.01;***p < 0.001
  2. Note: age groups with case # < 2 were excluded from the analysis
  3. Abbreviations: FluA Influenza Virus A, FluB Influenza Virus B, RSV Respiratory Syncytial Virus, hRV Human Rhinovirus, PIV Parainfluenza Virus, ADV Adenovirus, hMPV Human Metapneumovirus, M.p Mycoplasma pneumoniae, C.p Chlamydophila pneumoniae, Bp Bordetella pertussis