Summary statistics for Mantel and partial Mantel tests between community similarity and clinical factors.

The Mantel statistic r(AB) estimates the correlations between two proximity matrices, A and B. Whereas, the partial mantel statistic r(AB.C) estimates the correlation between A and B whilst controlling for the effects of C. Given are bacterial community similarity (Sørensen and Bray-Curtis indices of similarity) and also differences in clinical factors. Also given is P to ascertain whether the Mantel regression coefficients were significantly different from zero following 9,999 permutations. Asterisks denote those relationships that were significant at the P<0.05 level.