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Table 2 Species and frequency rates at T0, T1 and T2 in a sample investigated (n = 50)

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

Species T0 T1 T2 X2 P*
Candida albicans 30% (15/50) 38% (19/50) 20% (10/50) 3,924 0,141
Staphylococcus aureus- stock a 74% (37/50) 68% (34/50) 44% (22/50) 10,696 0.005*
Staphylococcus aureus- stock b 16% (8/50) 16% (8/50) 4% (2/50) 4,545 0,103
Branhamella catarrhalis 10% (5/50) 0 0 10,345 0,006*
Neisseria meningitidis 0 0 0 - -
Klebsiella pneumoniae 10% (5/50) 0 0 10,345 0,006*
Haemophilus 0 0 0 - -
Diplococcus pneumoniae 0 0 0 - -
Streptococcus pyogenes 10% (5/50) 10% (5/50) 0 5,357 0,069
  1. *by means of Chi-Square test