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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: J Cyst Fibros. 2013 Dec 13;13(3):311–318. doi: 10.1016/j.jcf.2013.11.004

Figure 4.

Figure 4

Sputum Microbiome is Unaltered by Iron Supplementation. The CF sputum microbiome is unaltered by iron supplementation. A) Relative abundance of P.a. as calculated by deep sequencing (P.a. reads/Total reads) for sputum samples obtained from 21 subjects while on or off iron supplementation. Sputum from week 6 of Arm 1 and Arm 2 were compared and analyzed for difference by paired Student’s t-test. Each symbol indicates an individual sputum sample. Horizontal line indicates the mean and error bars indicate the standard deviation. There is no significant difference in P.a. relative abundance in subjects on or off iron supplementation (p >0.05). B) Simpson Diversity Index (SDI) for sputum samples obtained while on or off iron supplementation for the same samples and by the same method described in panel A. There is no significant difference in Simpson Diversity index in subjects on or off iron supplementation (p >0.05).