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Table 3 Means ± DS of the CFU/mL of the main species detected at T0, T1 and T2, respectively.

From: Changes in pharyngeal aerobic microflora in oral breathers after palatal rapid expansion

Species* T0 T1 Z P** T0 T2 Z P**
Staph.aureus stock a 28,23 (± 53,96) 5,48 (± 5,10) -3,455 0,0005 28,23 (± 53,96) 3,07 (± 6,08) -4,512 0,0001
Staph.aureus stock b 5,23 (± 9,13) 3,46 (± 3,30) -0,105 0,916 5,23 (± 9,13) 2 (± 4,88) -2,521 0,011
Candida 5,95 (± 5,20) 1,8 (± 1,00) -3,267 0,0011 5,95 (± 5,20) 2,25 (± 3,04) -1,792 0,07
  1. *For Branhamella catarrhalis, Neisseria meningitidis, Klebsiella pneumoniae, Haemophilus, Diplococcus pneumoniae and Streptococcus pyogenes
  2. CFU/mL values were found in little number of patients and quantity, not adequate for statistical analysis.
  3. **by means of Wilcoxon Signed Rank Test.