Investigation into skin physiological parameters and mocroflora characteristics of melasma population in Lhasa China.

Alpha diversity analysis By comparing and analyzing the Alpha diversity indices of skin flora in the melasma group and the control group ( Tables 4 , 5 ), it can be seen that the chao index of bacteria and fungi were on an increasing trend, and the abundance of skin flora in the melasma group was higher than that in the control group, but the difference was not statistically significant ( P > 0.05).

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There was an increasing trend in shannon index and a decreasing trend in simpson index for bacteria and fungi, and the diversity of the melasma group was higher than that of the control group, but the difference was not statistically significant ( P > 0.05), indicating similar community structures. 3.2.2.2.

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