Participant and sample characteristics
There were no differences in the sample sizes (mean comparison of the
number of specimens: t = 0.372, df = 43, p = 0.712; number of women: t =
0.862, df = 43, p = 0.394). However, there was large variability in
sample size and number of specimens collected in studies that reported
and did not report GBS. Additionally, four manuscripts that did not
report GBS within the taxonomy analyzed, or overall metagenomic results,
did report positive culture-based GBS clinical screening results for
women within the study.8–11