marginally significantp = 0.010
Where sufficiently comparable data were available, a multilevel random-effects, meta-analysis of data from eleven differentstudies showed a marginally significant increase in Shannon diversity of patients with sporadic miscarriage (SMD = 0.22, 95% CI [0.05, 0.39], p = 0.010) with substantial heterogeneity (Q(12) = 41.29, p < 0.001, driven primarily by between study differences) (Supplementary Figs. 7 , 9 ).