Fig. 3From: Changes in the nasopharyngeal and oropharyngeal microbiota in pediatric obstructive sleep apnea before and after surgery: a prospective studyComparisons of beta diversity by PCoA between non-OSA group and various severity of OSA group. (A) Mild OSA vs. Non-OSA (R2 = 0.026, P < 0.01); (B) Moderate OSA vs. Non-OSA (R2 = 0.035, P < 0.01); (C) Severe OSA vs. Non-OSA (R2 = 0.024, P < 0.05)Back to article page