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. 2017 May 16;8:856. doi: 10.3389/fmicb.2017.00856

Table 4.

Amounts of microorganisms forming a biofilm (log CFU/ml) according to biotypes (A–C) from the clusterization method.

Time (h) Cluster N Mean SD Median Minimum Maximum Q1 Q3 p
4 A 12 7.16 0.08 7.15 7.08 7.28 7.08 7.24 p = 0.009
B 71 7.09 0.08 7.08 7 7.32 7.04 7.11
C 60 7.09 0.06 7.08 7 7.28 7.04 7.11 A > BC
6 A 12 7.22 0.1 7.2 7.08 7.34 7.15 7.31 p = 0.037
B 71 7.15 0.07 7.11 7.08 7.38 7.11 7.18
C 60 7.15 0.06 7.15 7.04 7.34 7.11 7.18 A > BC
8 A 12 7.27 0.09 7.26 7.15 7.4 7.2 7.36 p = 0.021
B 71 7.2 0.07 7.18 7.11 7.4 7.15 7.23
C 60 7.21 0.07 7.2 7.08 7.38 7.18 7.23 A > BC
10 A 12 7.32 0.08 7.34 7.2 7.43 7.25 7.4 p = 0.031
B 71 7.26 0.07 7.23 7.15 7.45 7.2 7.28
C 60 7.26 0.07 7.26 7.15 7.43 7.2 7.28 A > BC
12 A 12 7.37 0.07 7.38 7.26 7.45 7.3 7.43 p = 0.105
B 71 7.32 0.07 7.32 7.2 7.52 7.26 7.36
C 60 7.32 0.07 7.32 7.18 7.46 7.28 7.36
14 A 12 7.43 0.07 7.44 7.32 7.52 7.38 7.48 p = 0.055
B 71 7.38 0.07 7.38 7.26 7.56 7.34 7.41
C 60 7.38 0.07 7.37 7.23 7.52 7.34 7.41
16 A 12 7.48 0.07 7.51 7.38 7.57 7.41 7.53 p = 0.089
B 71 7.43 0.08 7.41 7.32 7.72 7.38 7.45
C 60 7.43 0.07 7.41 7.3 7.67 7.38 7.48
18 A 12 7.65 0.05 7.65 7.56 7.74 7.64 7.68 p = 0.006
B 71 7.57 0.07 7.56 7.43 7.72 7.53 7.64
C 60 7.58 0.08 7.57 7.41 7.74 7.53 7.65 A > BC
20 A 12 7.57 0.04 7.57 7.51 7.65 7.54 7.6 p = 0.005
B 71 7.49 0.08 7.46 7.34 7.66 7.43 7.55
C 60 7.49 0.09 7.46 7.36 7.67 7.41 7.56 A > BC
22 A 12 7.54 0.04 7.53 7.48 7.63 7.52 7.56 p = 0.001
B 71 7.45 0.08 7.43 7.3 7.66 7.4 7.51
C 60 7.45 0.09 7.41 7.32 7.65 7.38 7.52 A > BC
24 A 12 7.49 0.05 7.5 7.45 7.59 7.45 7.52 p = 0.001
B 71 7.41 0.08 7.4 7.26 7.6 7.36 7.45
C 60 7.4 0.09 7.38 7.26 7.61 7.34 7.45 A > BC

Kruskal–Wallis test and post hoc results (Dunn’s test) were used for the analysis.