Synthesis of Results
After data extraction, the included studies were divided into two
groups: GBS reported and GBS not reported. Independent t-tests were
conducted to compare the number of pregnant women and the number of
vaginal specimens between GBS reported and not reported groups. The
commonalities and differences among 16S rRNA primer regions used were
compared. We then qualitatively compared the commonalities and
differences of the other methodological categories between two groups,
since methods were too varied to compare statistically.