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. 2010 Jul 2;76(17):5659–5668. doi: 10.1128/AEM.03138-09

TABLE 5.

Results of the PERMANOVA test on E. coli assemblage composition (phylogroups A, B1, B2, and D) in the study areaa

Source df SS MS Pseudo-F Significance (P)
Site 6 19.571 3.2619 68.5 <0.001
Depth 1 2.619 2.619 1.068 NS
Site × depth 6 14.714 2.4524 51.5 <0.001
Residual 28 1.3333 0.047619
Total 41 38.238
a

df, degrees of freedom; SS, sum of squares; MS, mean square; Pseudo-F, statistic F; Pseudo-F, probability level; NS, not significant.